May Weather in Zacatecoluca, El Salvador

Last updated: August 23, 2025

In May, the average temperature in Zacatecoluca, El Salvador hovers around 27°C (81°F), providing a comfortable backdrop for various activities. Temperatures can range from a refreshing 21°C (71°F) at night to a sizzling 36°C (97°F) during the day. However, visitors should prepare for some rain, as the region receives an average precipitation of 324 mm (12.8 in) over 27 days. With an average humidity of 59%, it’s advisable to stay hydrated and enjoy the vibrant atmosphere!

May Temperature in Zacatecoluca

In May in Zacatecoluca, the average temperature is 27°C (81°F). The maximum can reach 36°C (97°F), and the minimum can be as low as 21°C (71°F). This warm weather makes Zacatecoluca an ideal destination for travelers seeking sunshine and pleasant outdoor activities.

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

The chart illustrates May 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, May typically has an average temperature of 27°C (81°F), with highs reaching up to 36°C (97°F) and lows dropping to around 21°C (71°F).

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

May Precipitation in Zacatecoluca

In Zacatecoluca in May, the precipitation amount is 324 mm (12.8 in) spread over 27 days, indicating a typically wet period for the region.

May Precipitation Trends in Zacatecoluca

The chart displays monthly precipitation patterns in Zacatecoluca, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Zacatecoluca, May typically receives around 324 mm (12.8 inches) of precipitation spread over approximately 27 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Zacatecoluca

In Zacatecoluca in May humidity is 59%. With an average temperature of 27°C (81°F), this humidity feels like a warm, tropical embrace, making it perfect for leisurely strolls but a bit sticky for extended outdoor activities.

May Average Humidity in Zacatecoluca

This chart illustrates the average monthly humidity levels in Zacatecoluca, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Zacatecoluca is approximately 59%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Zacatecoluca

In Zacatecoluca in May, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Zacatecoluca, you can check here.

Maximum UV Index Levels in Zacatecoluca for May

The chart shows the monthly maximum UV Index (UVI) for Zacatecoluca in May, 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 May, the maximum UV index in Zacatecoluca typically reaches 14, which falls under the extreme exposure category.

Data source: Zacatecoluca May 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 May 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 May’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 May’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