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December Weather in Puerto Rico, Mexico

Last updated: August 27, 2025

In Puerto Rico, Mexico, the average temperature in December hovers around 24°C (76°F), making it a comfortable escape. Expect temperatures to range from a cool 16°C (61°F) to a warm 32°C (89°F). This month brings a modest 47 mm (1.9 in) of precipitation spread over 8 days, while the average humidity settles at a high 84%. Whether you're exploring or relaxing, the climate offers a delightful backdrop for your adventures.

December Temperature in Puerto Rico

In December in Puerto Rico, the average temperature is 24°C (76°F). Maximums can reach 32°C (89°F), and minimums can be as low as 16°C (61°F). This pleasant climate makes Puerto Rico a great destination for travelers seeking comfortable weather.

December Weather in Puerto Rico: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Puerto Rico, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Puerto Rico, December typically has an average temperature of 24°C (76°F), with highs reaching up to 32°C (89°F) and lows dropping to around 16°C (61°F).
JanFebMarAprMayJunJulAugSepOctNovDec757881848784848483817876
Data source: Temperature data for Puerto Rico generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Puerto Rico

In Puerto Rico in December, the precipitation amount is 47 mm (1.9 in) over a span of 8 days.

December Precipitation Trends in Puerto Rico

The chart displays monthly precipitation patterns in Puerto Rico, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Puerto Rico, December typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec45181726532728211920024712047
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Puerto Rico

In Puerto Rico in December humidity is 84%. With an average temperature of 24°C (76°F), this humidity feels like a warm, damp embrace that can make outdoor activities feel sticky and uncomfortable, requiring frequent breaks in the shade and plenty of hydration for travelers.

December Average Humidity in Puerto Rico

This chart illustrates the average monthly humidity levels in Puerto Rico, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Puerto Rico is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%73%64%61%60%59%64%76%80%82%83%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Puerto Rico

In Puerto Rico in December, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Puerto Rico.

Maximum UV Index Levels in Puerto Rico for December

The chart shows the monthly maximum UV Index (UVI) for Puerto Rico in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Puerto Rico typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131313131313121198
Data source: Puerto Rico December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Puerto Rico Compares to Other Months

Weather in Puerto Rico varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Puerto Rico, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Puerto Rico, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)45 mm (1.8 inches)78%very high
February Weather26°C (78°F)18 mm (0.7 inches)73%extreme
March Weather27°C (81°F)17 mm (0.7 inches)64%extreme
April Weather29°C (85°F)25 mm (1.0 inches)61%extreme
May Weather30°C (87°F)53 mm (2.1 inches)59%extreme
June Weather29°C (84°F)272 mm (10.7 inches)59%extreme
July Weather29°C (84°F)82 mm (3.2 inches)64%extreme
August Weather29°C (84°F)118 mm (4.7 inches)76%extreme
September Weather28°C (83°F)200 mm (7.9 inches)80%extreme
October Weather27°C (81°F)247 mm (9.7 inches)82%extreme
November Weather26°C (78°F)120 mm (4.7 inches)83%very high
December Weather24°C (76°F)47 mm (1.9 inches)84%very high

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