September Weather in Tonacatepeque, El Salvador

Last updated: August 23, 2025

In September, the average temperature in Tonacatepeque, El Salvador is a warm 26°C (79°F). During this time, temperatures can dip as low as 20°C (69°F) and rise to a maximum of 34°C (94°F). Expect 291 mm (11.5 in) of precipitation spread over 28 days, resulting in an average humidity of 77%. Prepare for a tropical climate that is both inviting and lush!

September Temperature in Tonacatepeque

In September in Tonacatepeque, the average temperature is 26°C (79°F). Maximums can reach 34°C (94°F), and minimums can be as low as 20°C (69°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy all that Tonacatepeque has to offer.

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

The chart illustrates September temperature patterns in Tonacatepeque, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tonacatepeque, September typically has an average temperature of 26°C (79°F), with highs reaching up to 34°C (94°F) and lows dropping to around 20°C (69°F).

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

September Precipitation in Tonacatepeque

In Tonacatepeque in September, the total precipitation amount is 291 mm (11.5 in) spread over a duration of 28 days.

September Precipitation Trends in Tonacatepeque

The chart displays monthly precipitation patterns in Tonacatepeque, 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 Tonacatepeque, September typically receives around 291 mm (11.5 inches) of precipitation spread over approximately 28 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 Tonacatepeque

In Tonacatepeque 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 Tonacatepeque

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

In Tonacatepeque 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 Tonacatepeque.

Maximum UV Index Levels in Tonacatepeque for September

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

Data source: Tonacatepeque 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 Tonacatepeque Compares to Other Months

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

This table compares monthly weather conditions in Tonacatepeque, 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 (78°F)	3 mm (0.1 inches)	63%	extreme
February Weather	26°C (80°F)	5 mm (0.2 inches)	62%	extreme
March Weather	27°C (82°F)	5 mm (0.2 inches)	59%	extreme
April Weather	28°C (82°F)	51 mm (2.0 inches)	59%	extreme
May Weather	27°C (81°F)	279 mm (11.0 inches)	59%	extreme
June Weather	26°C (79°F)	313 mm (12.3 inches)	68%	extreme
July Weather	27°C (81°F)	138 mm (5.4 inches)	77%	extreme
August Weather	27°C (80°F)	232 mm (9.1 inches)	79%	extreme
September Weather	26°C (79°F)	291 mm (11.5 inches)	77%	extreme
October Weather	25°C (78°F)	286 mm (11.3 inches)	77%	extreme
November Weather	26°C (78°F)	65 mm (2.5 inches)	75%	very high
December Weather	25°C (78°F)	7 mm (0.3 inches)	66%	very high