Puerto rico weather in december and january: Puerto Rico December Weather, Average Temperature (Puerto Rico)

San Juan December Weather, Average Temperature (Puerto Rico)

Daily high temperatures are around 84°F, rarely falling below 80°F or exceeding 87°F.

Daily low temperatures are around 73°F, rarely falling below 70°F or exceeding 77°F.

For reference, on August 21, the hottest day of the year, temperatures in San Juan typically range from 78°F to 89°F, while on January 25, the coldest day of the year, they range from 72°F to 83°F.

Average High and Low Temperature in December in San JuanDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313170°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°FNovJanDec 184°FDec 184°F74°F74°FDec 3183°FDec 3183°F73°F73°FDec 1184°FDec 1184°F74°F74°FDec 2183°FDec 2183°F73°F73°F

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on December. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in December in San Juan

Average Hourly Temperature in December in San JuanDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNovJancomfortablewarmhotcomfortable

frigid
15°F
freezing
32°F
very cold
45°F
cold
55°F
cool
65°F
comfortable
75°F
warm
85°F
hot
95°F
sweltering

The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Mombasa, Kenya (7,348 miles away) is the far-away foreign place with temperatures most similar to San Juan (view comparison).

© OpenStreetMap contributors

Compare San Juan to another city:

Map

The month of December in San Juan experiences rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 35% to 21%.

The clearest day of the month is December 31, with clear, mostly clear, or partly cloudy conditions 79% of the time.

For reference, on May 30, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 73%, while on January 11, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 82%.

Cloud Cover Categories in December in San Juan

Cloud Cover Categories in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJanDec 165%Dec 165%Dec 3179%Dec 3179%Dec 1170%Dec 1170%Dec 2175%Dec 2175%clearmostly clearmostly cloudyovercastpartly cloudy

0%
clear
20%
mostly clear
40%
partly cloudy
60%
mostly cloudy
80%
overcast
100%

The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In San Juan, the chance of a wet day over the course of December is very rapidly decreasing, starting the month at 36% and ending it at 22%.

For reference, the year’s highest daily chance of a wet day is 50% on September 26, and its lowest chance is 20% on January 9.

Probability of Precipitation in December in San Juan

Probability of Precipitation in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%50%50%NovJanDec 136%Dec 136%Dec 3122%Dec 3122%Dec 1130%Dec 1130%Dec 2126%Dec 2126%rain

The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during December in San Juan is rapidly decreasing, starting the month at 2.9 inches, when it rarely exceeds 6.9 inches or falls below 0.4 inches, and ending the month at 1.4 inches, when it rarely exceeds 3. 3 inches or falls below 0.1 inches.

Average Monthly Rainfall in December in San Juan

Average Monthly Rainfall in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 inNovJanDec 12.9 inDec 12.9 inDec 311.4 inDec 311.4 inDec 112.2 inDec 112.2 inDec 211.7 inDec 211.7 in

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of December in San Juan, the length of the day is essentially constant. The shortest day of the month is December 22, with 11 hours, 1 minute of daylight and the longest day is December 1, with 11 hours, 6 minutes of daylight.

Hours of Daylight and Twilight in December in San Juan

Hours of Daylight and Twilight in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrNovJanDec 2111 hr, 1 minDec 2111 hr, 1 minnightnightdaydayDec 111 hr, 6 minDec 111 hr, 6 min

The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the month in San Juan is 6:40 AM on December 1 and the latest sunrise is 16 minutes later at 6:56 AM on December 31.

The earliest sunset is 5:46 PM on December 1 and the latest sunset is 12 minutes later at 5:58 PM on December 31.

Daylight saving time is not observed in San Juan during 2023.

For reference, on June 21, the longest day of the year, the Sun rises at 5:48 AM and sets 13 hours, 14 minutes later, at 7:03 PM, while on December 22, the shortest day of the year, it rises at 6:52 AM and sets 11 hours, 1 minute later, at 5:53 PM.

Sunrise & Sunset with Twilight in December in San Juan

Sunrise & Sunset with Twilight in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMNovJan6:40 AM6:40 AMDec 15:46 PMDec 15:46 PM6:56 AM6:56 AMDec 315:58 PMDec 315:58 PM6:49 AM6:49 AMDec 165:50 PMDec 165:50 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset

The solar day over the course of December. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun’s elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in December in San Juan

Solar Elevation and Azimuth in December in San JuanDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNovJan00101020202030304040505000010102020303030404050

northeastsouthwest

Solar elevation and azimuth over the course of December 2023. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for December 2023. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

Moon Rise, Set & Phases in December in San Juan

Moon Rise, Set & Phases in December in San JuanDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNovJanNov 135:28 AMNov 135:28 AMNov 275:17 AMNov 275:17 AMDec 127:33 PMDec 127:33 PMDec 268:34 PMDec 268:34 PMJan 117:58 AMJan 117:58 AMJan 251:55 PMJan 251:55 PM6:36 AM6:36 AM6:00 PM6:00 PM5:10 PM5:10 PM6:47 AM6:47 AM6:23 AM6:23 AM5:32 PM5:32 PM5:38 PM5:38 PM7:31 AM7:31 AM7:12 AM7:12 AM6:24 PM6:24 PM6:17 PM6:17 PM7:45 AM7:45 AM

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

Dec 2023IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
184%10:30 AMWNW9:42 PMENE3:40 AMN246,808 mi
276%11:13 AMWNW10:35 PMENE4:29 AMN248,961 mi
367%11:51 AMWNW11:26 PMENE5:15 AMN250,469 mi
458%12:26 PMWNW5:58 AMS251,195 mi
550%12:14 AME12:59 PMW6:38 AMS251,068 mi
639%1:02 AME1:30 PMW7:17 AMS250,085 mi
729%1:49 AME2:02 PMW7:56 AMS248,309 mi
821%2:38 AME2:35 PMW8:37 AMS245,874 mi
913%3:29 AMESE3:11 PMWSW9:20 AMS242,970 mi
107%4:23 AMESE3:52 PMWSW10:07 AMS239,829 mi
112%5:21 AMESE4:39 PMWSW10:59 AMS236,712 mi
120%6:23 AMESE5:32 PMWSW11:57 AMS233,876 mi
131%7:26 AMESE6:32 PMWSW12:59 PMS231,541 mi
144%8:29 AMESE7:37 PMWSW2:03 PMS229,858 mi
1510%9:27 AMESE8:43 PMWSW3:05 PMS228,890 mi
1618%10:19 AMESE9:47 PMWSW4:04 PMS228,604 mi
1729%11:06 AMESE10:49 PMWSW4:58 PMS228,905 mi
1840%11:48 AME11:48 PMW5:48 PMS229,669 mi
1950%12:27 PME6:35 PMS230,776 mi
2063%12:45 AMW1:04 PME7:21 PMS232,133 mi
2174%1:41 AMW1:42 PME8:08 PMS233,685 mi
2283%2:38 AMWNW2:22 PMENE8:57 PMS235,409 mi
2391%3:36 AMWNW3:05 PMENE9:48 PMN237,299 mi
2496%4:36 AMWNW3:52 PMENE10:42 PMN239,351 mi
2599%5:36 AMWNW4:43 PMENE11:38 PMN241,537 mi
26100%6:35 AMWNW5:38 PMENE
27100%7:31 AMWNW6:34 PMENE12:34 AMN243,795 mi
2899%8:21 AMWNW7:31 PMENE1:29 AMN246,017 mi
2995%9:07 AMWNW8:25 PMENE2:21 AMN248,063 mi
3090%9:47 AMWNW9:17 PMENE3:08 AMN249,776 mi
3183%10:24 AMWNW10:07 PMENE3:52 AMS250,993 mi

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in San Juan is gradually decreasing during December, falling from 96% to 93% over the course of the month.

For reference, on June 12, the muggiest day of the year, there are muggy conditions 100% of the time, while on March 9, the least muggy day of the year, there are muggy conditions 81% of the time.

Humidity Comfort Levels in December in San Juan

Humidity Comfort Levels in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%NovJanDec 196%Dec 196%Dec 3193%Dec 3193%Dec 1194%Dec 1194%Dec 2194%Dec 2194%miserablemiserableoppressiveoppressivemuggymuggyhumidhumid

dry
55°F
comfortable
60°F
humid
65°F
muggy
70°F
oppressive
75°F
miserable

The percentage of time spent at various humidity comfort levels, categorized by dew point.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in San Juan is gradually increasing during December, increasing from 11.3 miles per hour to 11.8 miles per hour over the course of the month.

For reference, on July 14, the windiest day of the year, the daily average wind speed is 12.5 miles per hour, while on October 10, the calmest day of the year, the daily average wind speed is 9.3 miles per hour.

Average Wind Speed in December in San Juan

Average Wind Speed in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph3 mph3 mph5 mph5 mph6 mph6 mph8 mph8 mph20 mph20 mph22 mph22 mph24 mph24 mph26 mph26 mphNovJanDec 111. 3 mphDec 111.3 mphDec 3111.8 mphDec 3111.8 mphDec 1611.6 mphDec 1611.6 mph

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in San Juan throughout December is predominantly from the east, with a peak proportion of 87% on December 21.

Wind Direction in December in San Juan

Wind Direction in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%NovJaneastsouthnorth

northeastsouthwest

The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

San Juan is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in San Juan is essentially constant during December, remaining within 1°F of 81°F throughout.

Average Water Temperature in December in San Juan

Average Water Temperature in December in San JuanDec112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313178°F78°F79°F79°F80°F80°F81°F81°F82°F82°F83°F83°F84°F84°F85°F85°FNovJanDec 182°FDec 182°FDec 3180°FDec 3180°FDec 1181°FDec 1181°FDec 2181°FDec 2181°F

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in San Juan are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Time Spent in Various Temperature Bands and the Growing Season in December in San Juan

Time Spent in Various Temperature Bands and the Growing Season in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%NovJan100%Dec 16100%Dec 16comfortablewarmhot

frigid
15°F
freezing
32°F
very cold
45°F
cold
55°F
cool
65°F
comfortable
75°F
warm
85°F
hot
95°F
sweltering

The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in San Juan are rapidly increasing during December, increasing by 835°F, from 10,030°F to 10,865°F, over the course of the month.

Growing Degree Days in December in San Juan

Growing Degree Days in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031319,800°F9,800°F10,000°F10,000°F10,200°F10,200°F10,400°F10,400°F10,600°F10,600°F10,800°F10,800°F11,000°F11,000°FNovJanDec 110,030°FDec 110,030°FDec 3110,865°FDec 3110,865°FDec 1110,310°FDec 1110,310°FDec 2110,591°FDec 2110,591°F

The average growing degree days accumulated over the course of December, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in San Juan is essentially constant during December, remaining within 0.1 kWh of 4.8 kWh throughout.

Average Daily Incident Shortwave Solar Energy in December in San Juan

Average Daily Incident Shortwave Solar Energy in December in San JuanDec11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 kWh0.0 kWh0.5 kWh0.5 kWh2.0 kWh2.0 kWh2.5 kWh2.5 kWh3.0 kWh3.0 kWh3.5 kWh3.5 kWh4.0 kWh4.0 kWh4.5 kWh4.5 kWh5.0 kWh5.0 kWh5.5 kWh5.5 kWh5.0 kWh5.0 kWh5.5 kWh5.5 kWh6.0 kWh6. 0 kWhNovJanDec 14.8 kWhDec 14.8 kWhDec 314.9 kWhDec 314.9 kWhDec 164.8 kWhDec 164.8 kWh

The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of San Juan are 18.466 deg latitude, -66.106 deg longitude, and 36 ft elevation.

The topography within 2 miles of San Juan contains only modest variations in elevation, with a maximum elevation change of 194 feet and an average elevation above sea level of 5 feet. Within 10 miles contains only modest variations in elevation (984 feet). Within 50 miles contains very significant variations in elevation (4,390 feet).

The area within 2 miles of San Juan is covered by water (78%) and artificial surfaces (19%), within 10 miles by water (58%) and grassland (16%), and within 50 miles by water (75%) and trees (14%).

This report illustrates the typical weather in San Juan, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in San Juan.

For each station, the records are corrected for the elevation difference between that station and San Juan according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at San Juan is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between San Juan and a given station.

The stations contributing to this reconstruction are:

  • Luis Muñoz Marín International Airport (TJSJ, 94%, 7 mi, east, -30 ft elevation change)
  • Mercedita Airport (TJPS, 6%, 44 mi, southwest, -10 ft elevation change)

TJSJ, 94%7 mi, -30 ftTJPS, 6%44 mi, -10 ft

© OpenStreetMap contributors

To get a sense of how much these sources agree with each other, you can view a comparison of San Juan and the stations that contribute to our estimates of its temperature history and climate. Please note that each source’s contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun’s position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA’s MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA’s Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.

San Juan

San Juan Antiguo Barrio, San Juan, Puerto Rico

© OpenStreetMap contributors

December Weather in Puerto Rico: Temperature, Rain Averages

The tables below give the normal December temperatures and rainfall for cities and popular vacation spots in Puerto Rico. There’s also information here on this month’s average humidity and ocean temperature at San Juan.

The temperature and rain measurements are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

One site, Pico Del Este, is much cooler than others on the list. That’s because it’s a high mountain peak, at 3448 feet (1050 metres) elevation, in the El Yunque Caribbean National Forest.

Temperature

Average December temperatures in Puerto Rico
High °FLow °FPlaceHigh °CLow °C
8568Aguirre3020
7564Aibonito2418
8564Caguas3018
8473Ceiba2923
8269Dorado2820
8773Guayama3023
8269Isabela2820
8366Juncos2819
8870La Parguera3121
8864Lajas3118
8371Levittown2921
8267Manati2820
7564Maricao2418
8669Mayagüez3021
8669Mona Island3021
6760Pico Del Este1916
8864Ponce3118
8473San Juan2923

Ocean Temperature at San Juan, Puerto Rico averages 80 degrees
Fahrenheit (27 degrees Celsius) in December.

Rainfall

Average total precipitation in December. Days are when it rains at least 0.01 inches (0.25 millimetres).
DaysPlaceInchesMilli­metres
7Aguirre1.742
17Aibonito4.1105
21Caguas4.3109
18Ceiba4.0101
18Dorado5.3133
15Guayama2.871
15Isabela4.4112
18Juncos4.2106
La Parguera2.050
8Lajas2.051
Levittown6.0153
16Manati5.4137
Maricao3. 999
6Mayagüez2.359
11Mona Island4.0101
7Ponce1.537
20San Juan4.9123

Relative Humidity at San Juan, Puerto Rico in December averages 82 percent in the morning and 66 percent in the afternoon.

Weather in Puerto Rico in December / Sea water temperature / Weather map

World ResortsWeather in Puerto Rico

Puerto Rico weather in December on the weather map

Weather

Sea water temperature

Now

3

February

March

April

May

June

July

August

September

October

November

December

This weather is fully interactive. You can switch months, as well as zoom and move the visible area of ​​the map to view other resorts. nine0003

Where is the best place to relax in Puerto Rico in December?

This table will help you determine which resorts in Puerto Rico are warmest in December, find out where there is less rain and more clear days.
Do you want to know where is the warmest sea? We also provide information about the water temperature in seaside resorts.

nine0044 Rainy days /
rainfall

nine0062 27.8°C

nine0062 50.4%

Resort name Air temperature
day / night
Cloudy Sea water temperature Solar clock
*
Aguadilla 28.2°C 22.8°C 35.3%

5 days (70.2 mm.)

27.9°C 08h. 08m.
Arecibo
nine0063

27.9°C 22.8°C 44.1%

3 days (44.4 mm.)

27.7°C 07h. 10m.
Isabela 27.7°C 23.0°C 36. 8%

3 days (49.6 mm.)

07h. 59m.
Mayaguez 28.5°C 22.6°C 34.5%

5 days (79.1 mm.)

27.9°C 08h. 14m.
San Juan 27.8°C 24.0°C

3 days (49.3 mm.)

27.8°C 06h. 28m.

* Sundial – an indicator that displays the average number of hours per day during which direct sunlight reaches the earth’s surface. This indicator is influenced by both the length of daylight hours and cloud cover in the daytime.

Tourist reviews of the weather in Puerto Rico in December

In December we tasted Puerto Rico, Arecibo. In general, in this country, the weather is never cold, but in December, it is cool. The wind from the ocean is strong and cool. The sea is warm, but there are many storm situations. Every morning, the tide caresses with warm waves, and throughout the day, the waves increase, for surfers, that’s it. The sun is always, the temperature is from 19 to 27 degrees, on the warmest days. In general, for the rest of the norms of December.

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Puerto Rico weather in December 2023-2022 at “365 Celsius”0001

What the weather is like in Puerto Rico in the month of December is highly dependent on the region. The air warms up at night to +25.2°C, and during the day up to +30°C, it rains for 15 days and 33.3 mm of precipitation falls per month. And, for example, in Arecibo Gardens, the weather conditions are not very good, since the air is up to +27.4 ° C, cloudy and rainy days are at least 14. The best cities to relax at this time are Arecibo, Isabela, Mayaguez. The air temperature in December is +27.5°C. nine0003

Climate

Average temperature during the day: +27. 5°C
Sea water temperature: +27.7°C
Number of sunny days: 17 days
Number of rainy days:
Rainfall:
15 days
33.3 mm

Water temperature in Puerto Rico in December

Should you visit Puerto Rico in December?

The weather in Puerto Rico in December is great for relaxing, this month’s rating is 4.6 out of five. The climate in December is good and tourists come to rest. At this time, the sea is very warm with a temperature of +27.7°C. It rains a lot, about 15 days a month, with 33.3 mm of precipitation. Sunny skies for at least 17 days. The weather in Puerto Rico at the end of December at the beginning and middle of the month is presented on the chart. The air temperature in December is +27.5°C. At this time, the best climatic conditions in 3 cities:

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Weather in December San Juan

nine0062 air: +29.2°C
rain: 2 days
sea: +27.6°C
sun: 13 days

Weather in December Mayaguez Weather in December Arecibo

5
.
0

nine0063

air: +30°C
rain: 4 days
sea: +27.8°C
sun: 16 days

5
.
0

5
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0

air: +29. 5°C
rain: 4 days
sea: +27.6°C
sun: 9 days
Best climate in cities in December

nine0062 4 days (65.4mm)

nine0062 +29°C

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City Air temperature Water temperature Rainy days (precipitation)
Mayaguez +30°C +27.8°C
Arecibo +29.2°C +27.6°C 2 days (45.9mm)
San Juan +29.5°C +27.6°C 4 days (54.8mm)
Isabela +27. 7°C 3 days (71.0mm)
Aguadilla +29.5°C +27.8°C 6 days (84.7mm)
Sabana Grande +28.2°C 15 days (25.01mm)
Juncos +27.1°C 19 days (34.17mm)

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Temperature in Puerto Rico in December

The difference in daily air temperature throughout the year is 2.8°C, but due to the presence of the sea, the climate in Puerto Rico is quite mild over the months. The coldest month is January, when the air warms up to +27. 0°C, and the warmest is September from +29.8°C. The air temperature in December is +27.5°C.

Puerto Rico water temperature

The beach season here lasts: . The temperature in the sea at this time of the year is from – to – conducive to a pleasant swim. The worst weather in Puerto Rico and the water temperature recorded in February is +2.5°C. The air temperature in December is +27.5°C.

Number of rainy days and precipitation in December

An unsuccessful month for travel is May, it rains on average 20 days. The maximum monthly rainfall is 62.9 mm. The air temperature in December is +27.5°C.

December holiday comfort rating

The rating is calculated by months, taking into account the average air temperature, the amount of rain and other indicators. For a year in Puerto Rico, the score ranges from 4.3 in August to 4.7 in January, out of a possible five. The air temperature in December is +27.5°C. nine0003

nine0062 +27.0°C

nine0062 14 days (27.4 mm)

Month Air temperature during the day Water temperature Solar
days
Rainy days (precipitation)
December +27.5°C +2.7°C 16.6 15 days (33.3 mm)
January +2.6°C 19.0 13 days (83.3 mm)
February +27.0°C +2.5°C 18.5 12 days (22.0 mm)
March +27. 1°C +2.6°C 18.0
April +27.8°C +2.6°C 18.4 15 days (36.9 mm)
May +28.4°C +2.7°C 19.3 20 days (62.9 mm)
June +29.3°C +2.7°C 21.5 14 days (34.5 mm)
July +29.5°C +2.7°C 20.9 16 days (42.7 mm)
August +29.7°C +2.7°C 21.

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