September Weather in Chalatenango, El Salvador

Last updated: August 23, 2025

In September, the average temperature in Chalatenango, El Salvador is a warm 26°C (79°F). Expect a range from a comfortable 19°C (67°F) at night to a sizzling 36°C (97°F) during the day. Be prepared for 216 mm (8.5 in) of rainfall spread over 26 days, and note the average humidity sits at a high 77%. Perfect for those who enjoy a tropical vibe!

September Temperature in Chalatenango

In September in Chalatenango, the average temperature is 26°C (79°F). Maximum temperatures can reach 36°C (97°F), while the minimum can drop to as low as 19°C (67°F). This mild climate makes Chalatenango an ideal destination for travelers looking to enjoy pleasant weather.

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

The chart illustrates September temperature patterns in Chalatenango, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chalatenango, September typically has an average temperature of 26°C (79°F), with highs reaching up to 36°C (97°F) and lows dropping to around 19°C (67°F).

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

September Precipitation in Chalatenango

In Chalatenango in September, the total precipitation amount is 216 mm (8.5 in) spread over the course of 26 days.

September Precipitation Trends in Chalatenango

The chart displays monthly precipitation patterns in Chalatenango, 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 Chalatenango, September typically receives around 216 mm (8.5 inches) of precipitation spread over approximately 26 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 Chalatenango

In Chalatenango 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 Chalatenango

This chart illustrates the average monthly humidity levels in Chalatenango, 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 Chalatenango 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 Chalatenango

In Chalatenango 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 Chalatenango.

Maximum UV Index Levels in Chalatenango for September

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

Data source: Chalatenango 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 Chalatenango Compares to Other Months

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

This table compares monthly weather conditions in Chalatenango, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	2 mm (0.1 inches)	63%	extreme
February Weather	27°C (80°F)	2 mm (0.1 inches)	62%	extreme
March Weather	27°C (82°F)	2 mm (0.1 inches)	59%	extreme
April Weather	28°C (83°F)	29 mm (1.1 inches)	59%	extreme
May Weather	27°C (81°F)	180 mm (7.1 inches)	59%	extreme
June Weather	26°C (79°F)	224 mm (8.8 inches)	68%	extreme
July Weather	27°C (81°F)	96 mm (3.8 inches)	77%	extreme
August Weather	27°C (81°F)	148 mm (5.8 inches)	79%	extreme
September Weather	26°C (79°F)	216 mm (8.5 inches)	77%	extreme
October Weather	25°C (78°F)	186 mm (7.3 inches)	77%	extreme
November Weather	25°C (78°F)	45 mm (1.8 inches)	75%	very high
December Weather	25°C (78°F)	4 mm (0.2 inches)	66%	very high