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December Weather in Cacao, Puerto Rico

Last updated: August 31, 2025

In Cacao, Puerto Rico, the average temperature in December hovers around 25°C (78°F), offering a pleasant climate. The minimum temperature can dip to 23°C (73°F), while the maximum can reach up to 30°C (86°F). Expect about 43 mm (1.7 in) of precipitation over 15 days of the month, and a comfortable average humidity of 76%.

December Temperature in Cacao

In December in Cacao, the average temperature is 25°C (78°F). Maximum temperatures can reach 30°C (86°F), while minimums can dip as low as 23°C (73°F). This makes Cacao an ideal destination for travelers seeking pleasant and mild weather during this time of year.

December Weather in Cacao: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Cacao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cacao, December typically has an average temperature of 25°C (78°F), with highs reaching up to 30°C (86°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec767676777980818181807978
Data source: Temperature data for Cacao 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 Cacao

In Cacao in December, the precipitation amount is 43 mm (1.7 in) spread over 15 days.

December Precipitation Trends in Cacao

The chart displays monthly precipitation patterns in Cacao, 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 Cacao, December typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec34397266978591971881279943
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cacao

In Cacao in December humidity is 76%. With an average temperature of 25°C (78°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick, causing travelers to seek shade and refreshment more often.

December Average Humidity in Cacao

This chart illustrates the average monthly humidity levels in Cacao, 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 Cacao is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%74%75%75%77%80%80%79%78%78%76%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cacao

In Cacao 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 Cacao.

Maximum UV Index Levels in Cacao for December

The chart shows the monthly maximum UV Index (UVI) for Cacao 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 Cacao typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131313131298
Data source: Cacao 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 Cacao Compares to Other Months

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

This table compares monthly weather conditions in Cacao, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)34 mm (1.3 inches)76%very high
February Weather25°C (76°F)39 mm (1.5 inches)75%extreme
March Weather25°C (76°F)72 mm (2.8 inches)74%extreme
April Weather25°C (78°F)66 mm (2.6 inches)75%extreme
May Weather26°C (79°F)97 mm (3.8 inches)75%extreme
June Weather27°C (81°F)85 mm (3.3 inches)77%extreme
July Weather27°C (81°F)91 mm (3.6 inches)80%extreme
August Weather27°C (82°F)97 mm (3.8 inches)80%extreme
September Weather27°C (81°F)188 mm (7.4 inches)79%extreme
October Weather27°C (81°F)127 mm (5.0 inches)78%extreme
November Weather26°C (79°F)99 mm (3.9 inches)78%very high
December Weather25°C (78°F)43 mm (1.7 inches)76%very high

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