December Weather in El Negro, Puerto Rico

Last updated: August 31, 2025

The average temperature in El Negro, Puerto Rico during December is a pleasant 26°C (78°F). Expect comforting lows of 23°C (74°F) and highs of 28°C (83°F). However, be prepared for a bit of rain, as the region sees about 75 mm (2.9 in) of precipitation spread over 22 days. With an average humidity of 77%, the air carries a warm, tropical feel.

December Temperature in El Negro

In December in El Negro, the average temperature is 26°C (78°F), with maximums reaching 28°C (83°F) and minimums dropping as low as 23°C (74°F). This pleasant weather makes El Negro an ideal destination for travelers seeking comfortable conditions.

December Weather in El Negro: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in El Negro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In El Negro, December typically has an average temperature of 26°C (78°F), with highs reaching up to 28°C (83°F) and lows dropping to around 23°C (74°F).

Data source: Temperature data for El Negro generated using information from the Copernicus Climate Change Service.

December Precipitation in El Negro

In El Negro in December, the precipitation amount is 75 mm (2.9 in) over the course of 22 days.

December Precipitation Trends in El Negro

The chart displays monthly precipitation patterns in El Negro, 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 El Negro, December typically receives around 75 mm (2.9 inches) of precipitation spread over approximately 22 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in El Negro

In El Negro in December, humidity is 77%. With an average temperature of 26°C (78°F), this humidity feels like an inviting embrace that can quickly fatigue travelers, making every step feel heavier and each breath a reminder of the warm, moist air surrounding them.

December Average Humidity in El Negro

This chart illustrates the average monthly humidity levels in El Negro, 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 El Negro is approximately 77%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in El Negro

In El Negro 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 El Negro.

Maximum UV Index Levels in El Negro for December

The chart shows the monthly maximum UV Index (UVI) for El Negro 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 El Negro typically reaches 9, which falls under the very high exposure category.

Data source: El Negro 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 El Negro Compares to Other Months

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

This table compares monthly weather conditions in El Negro, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (77°F)	52 mm (2.0 inches)	76%	very high
February Weather	25°C (76°F)	54 mm (2.1 inches)	75%	extreme
March Weather	25°C (77°F)	70 mm (2.8 inches)	75%	extreme
April Weather	25°C (78°F)	69 mm (2.7 inches)	76%	extreme
May Weather	26°C (79°F)	101 mm (4.0 inches)	76%	extreme
June Weather	27°C (80°F)	103 mm (4.1 inches)	78%	extreme
July Weather	27°C (81°F)	145 mm (5.7 inches)	81%	extreme
August Weather	27°C (81°F)	148 mm (5.8 inches)	80%	extreme
September Weather	27°C (82°F)	195 mm (7.7 inches)	79%	extreme
October Weather	27°C (81°F)	179 mm (7.1 inches)	78%	extreme
November Weather	26°C (80°F)	129 mm (5.1 inches)	78%	very high
December Weather	26°C (78°F)	75 mm (2.9 inches)	77%	very high