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December Weather in Las Piedras, Puerto Rico

Last updated: August 31, 2025

In December, the average temperature in Las Piedras, Puerto Rico is a warm 26°C (78°F), with a comfortable minimum of 23°C (73°F) and a delightful maximum reaching 29°C (85°F). Expect 81 mm (3.2 in) of precipitation spread over 24 days, contributing to an average humidity level of 76%. Ideal for those who enjoy a tropical climate!

December Temperature in Las Piedras

In December in Las Piedras, the average temperature is 26°C (78°F). Maximums can reach 29°C (85°F) and minimums can be as low as 23°C (73°F). This pleasant climate makes it an ideal time for outdoor activities and exploration.

December Weather in Las Piedras: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Las Piedras, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Las Piedras, December typically has an average temperature of 26°C (78°F), with highs reaching up to 29°C (85°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec767676777980818181817978
Data source: Temperature data for Las Piedras 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 Las Piedras

In Las Piedras in December, the precipitation amount is 81 mm (3.2 in) over a period of 24 days.

December Precipitation Trends in Las Piedras

The chart displays monthly precipitation patterns in Las Piedras, 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 Las Piedras, December typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec5761787910911014915319618713281
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Las Piedras

In Las Piedras in December humidity is 76%. With an average temperature of 26°C (78°F), this humidity feels like a warm, tropical embrace, making travel feel like a stroll through a steamy rainforest, where the air clings to your skin and every step can leave you drenched, yet there's a certain charm in the lush scenery and vibrant life all around.

December Average Humidity in Las Piedras

This chart illustrates the average monthly humidity levels in Las Piedras, 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 Las Piedras 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 Las Piedras

In Las Piedras 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 Las Piedras.

Maximum UV Index Levels in Las Piedras for December

The chart shows the monthly maximum UV Index (UVI) for Las Piedras 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 Las Piedras typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131313131213141298
Data source: Las Piedras 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 Las Piedras Compares to Other Months

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

This table compares monthly weather conditions in Las Piedras, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)57 mm (2.3 inches)76%very high
February Weather24°C (76°F)61 mm (2.4 inches)75%extreme
March Weather25°C (76°F)78 mm (3.1 inches)74%extreme
April Weather25°C (77°F)79 mm (3.1 inches)75%extreme
May Weather26°C (79°F)109 mm (4.3 inches)75%extreme
June Weather27°C (80°F)110 mm (4.3 inches)77%extreme
July Weather27°C (81°F)149 mm (5.9 inches)80%extreme
August Weather27°C (82°F)153 mm (6.0 inches)80%extreme
September Weather27°C (82°F)195 mm (7.7 inches)79%extreme
October Weather27°C (81°F)187 mm (7.4 inches)78%extreme
November Weather26°C (80°F)131 mm (5.2 inches)78%very high
December Weather26°C (78°F)81 mm (3.2 inches)76%very high

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