September Weather in Zacatecoluca, El Salvador

Last updated: August 23, 2025

In Zacatecoluca, El Salvador, the average temperature in September reaches a pleasant 26°C (79°F). Expect minimums of 21°C (71°F) and maximums of 33°C (92°F), creating a beautiful warm climate. However, be prepared for some rain, as precipitation averages around 349 mm (13.7 in) over 29 days. With an average humidity of 77%, it’s a time for tropical vibes and refreshing experiences!

September Temperature in Zacatecoluca

In September in Zacatecoluca, the average temperature is 26°C (79°F), with maximums reaching 33°C (92°F) and minimums dropping as low as 21°C (71°F). This pleasant climate makes Zacatecoluca an ideal destination for travelers seeking warmth and comfort.

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

The chart illustrates September 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, September typically has an average temperature of 26°C (79°F), with highs reaching up to 33°C (92°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.

September Precipitation in Zacatecoluca

In Zacatecoluca in September, the precipitation amount is 349 mm (13.7 in) over a span of 29 days.

September Precipitation Trends in Zacatecoluca

The chart displays monthly precipitation patterns in Zacatecoluca, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Zacatecoluca, September typically receives around 349 mm (13.7 inches) of precipitation spread over approximately 29 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Zacatecoluca

In Zacatecoluca in September humidity is 77%. With an average temperature of 26°C (79°F), this humidity feels like walking through a warm, thick fog that clings to your skin, making every step feel heavier and more exhausting while exploring the sights.

September Average Humidity in Zacatecoluca

This chart illustrates the average monthly humidity levels in Zacatecoluca, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Zacatecoluca is approximately 77%, offering insight into how humid the weather typically is during this month.

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

September UV Index in Zacatecoluca

In Zacatecoluca in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Zacatecoluca.

Maximum UV Index Levels in Zacatecoluca for September

The chart shows the monthly maximum UV Index (UVI) for Zacatecoluca in September, 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 September, the maximum UV index in Zacatecoluca typically reaches 13, which falls under the extreme exposure category.

Data source: Zacatecoluca September 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 September 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 September’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 September’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