nomadseason

December Weather in Puerto Rico, Mexico

Last updated: August 27, 2025

In Puerto Rico, Mexico, the average temperature in December hovers around 23°C (73°F), offering a pleasant climate for exploration. You can expect minimum temperatures to dip to 12°C (55°F) and occasional highs reaching 34°C (93°F). During this month, precipitation averages 15 mm (0.6 in) over the course of 3 days, with humidity levels around 76%, creating a comfortable yet slightly tropical atmosphere. Embrace the warmth and enjoy your time in this vibrant locale!

December Temperature in Puerto Rico

In December in Puerto Rico, the average temperature is 23°C (73°F). The maximum can reach 34°C (93°F) and the minimum can be as low as 12°C (55°F). This mild climate makes Puerto Rico an ideal destination for travelers seeking pleasant weather and outdoor activities.

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 23°C (73°F), with highs reaching up to 34°C (93°F) and lows dropping to around 12°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec727578818177797977767473
Data source: Temperature data for Puerto Rico generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
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 15 mm (0.6 in) over the course of 3 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 15 mm (0.6 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec9541297223481062121973715
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Puerto Rico

In Puerto Rico in December humidity is 76%. With an average temperature of 23°C (73°F), this humidity feels like a warm, enveloping blanket, making outdoor activities feel more intense and prompting travelers to seek shade or cool breaks more frequently.

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 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%68%59%57%65%66%75%82%82%83%80%76%
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 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414141415141413109
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 Weather22°C (73°F)9 mm (0.4 inches)76%very high
February Weather24°C (75°F)5 mm (0.2 inches)68%extreme
March Weather25°C (78°F)4 mm (0.2 inches)59%extreme
April Weather27°C (81°F)12 mm (0.5 inches)57%extreme
May Weather27°C (81°F)97 mm (3.8 inches)65%extreme
June Weather25°C (78°F)223 mm (8.8 inches)66%extreme
July Weather26°C (79°F)48 mm (1.9 inches)75%extreme
August Weather26°C (79°F)106 mm (4.2 inches)82%extreme
September Weather25°C (77°F)212 mm (8.4 inches)82%extreme
October Weather24°C (76°F)197 mm (7.8 inches)83%extreme
November Weather24°C (75°F)37 mm (1.5 inches)80%very high
December Weather23°C (73°F)15 mm (0.6 inches)76%very high

Compare Puerto Rico's Climate with Cities Worldwide