December Weather in Zacatecoluca, El Salvador

Last updated: August 23, 2025

In December, the average temperature in Zacatecoluca, El Salvador hovers around 26°C (79°F), creating a pleasant atmosphere for outdoor activities. Expect a minimum of 18°C (64°F) and a maximum of 35°C (96°F), offering a warm range for all preferences. With precipitation at only 8 mm (0.3 in) over 2 days, the likelihood of rain is low. Humidity levels are moderate at 66%, adding a touch of tropical comfort to your experience.

December Temperature in Zacatecoluca

In December in Zacatecoluca, the average temperature is 26°C (79°F), with maximums reaching up to 35°C (96°F) and minimums dropping as low as 18°C (64°F). This makes it an ideal time for travelers who enjoy warm weather and comfortable evenings.

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

The chart illustrates December temperature patterns in Zacatecoluca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Zacatecoluca, December typically has an average temperature of 26°C (79°F), with highs reaching up to 35°C (96°F) and lows dropping to around 18°C (64°F).

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

December Precipitation in Zacatecoluca

In Zacatecoluca in December, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.

December Precipitation Trends in Zacatecoluca

The chart displays monthly precipitation patterns in Zacatecoluca, 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 Zacatecoluca, December typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 2 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 Zacatecoluca

In Zacatecoluca in December, humidity is 66%. With an average temperature of 26°C (79°F), this humidity feels like a warm, enveloping blanket, making outdoor activities invigorating yet requiring occasional breaks in the shade to stay comfortable while traveling.

December Average Humidity in Zacatecoluca

This chart illustrates the average monthly humidity levels in Zacatecoluca, 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 Zacatecoluca is approximately 66%, 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 Zacatecoluca

In Zacatecoluca 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 Zacatecoluca.

Maximum UV Index Levels in Zacatecoluca for December

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

Data source: Zacatecoluca 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 Zacatecoluca Compares to Other Months

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

This table compares monthly weather conditions in Zacatecoluca, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	2 mm (0.1 inches)	63%	extreme
February Weather	27°C (81°F)	6 mm (0.2 inches)	62%	extreme
March Weather	28°C (82°F)	8 mm (0.3 inches)	59%	extreme
April Weather	28°C (82°F)	53 mm (2.1 inches)	59%	extreme
May Weather	27°C (81°F)	324 mm (12.8 inches)	59%	extreme
June Weather	26°C (80°F)	391 mm (15.4 inches)	68%	extreme
July Weather	27°C (81°F)	182 mm (7.2 inches)	77%	extreme
August Weather	27°C (80°F)	316 mm (12.5 inches)	79%	extreme
September Weather	26°C (79°F)	349 mm (13.7 inches)	77%	extreme
October Weather	26°C (78°F)	407 mm (16.0 inches)	77%	extreme
November Weather	26°C (79°F)	84 mm (3.3 inches)	75%	very high
December Weather	26°C (79°F)	8 mm (0.3 inches)	66%	very high