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September Weather in Moncagua, El Salvador

Last updated: August 23, 2025

In Moncagua, El Salvador, the average temperature in September hovers around 27°C (81°F). Expect a comfortable minimum of 21°C (71°F), while the heat can peak at a steamy 36°C (97°F). Be prepared for 300 mm (11.8 in) of precipitation over 27 days and a notably high average humidity of 77%.

September Temperature in Moncagua

In September in Moncagua, 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 Moncagua an ideal destination for travelers seeking sunshine and pleasant outdoor activities.

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

The chart illustrates September temperature patterns in Moncagua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Moncagua, September 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).
JanFebMarAprMayJunJulAugSepOctNovDec828485858381838280797980
Data source: Temperature data for Moncagua generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Moncagua

In Moncagua in September, the precipitation amount is 300 mm (11.8 in) during 27 days, indicating a significant amount of rainfall over that period.

September Precipitation Trends in Moncagua

The chart displays monthly precipitation patterns in Moncagua, 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 Moncagua, September typically receives around 300 mm (11.8 inches) of precipitation spread over approximately 27 days.
JanFebMarAprMayJunJulAugSepOctNovDec12540294347131316300371735
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Moncagua

In Moncagua in September, humidity is 77%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket, making travel feel sticky and heavy, as sweat clings to the skin and the air becomes thick, causing you to long for refreshing breezes and cool shade.

September Average Humidity in Moncagua

This chart illustrates the average monthly humidity levels in Moncagua, 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 Moncagua is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%62%59%59%59%68%78%79%77%77%75%67%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Moncagua

In Moncagua 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 Moncagua.

Maximum UV Index Levels in Moncagua for September

The chart shows the monthly maximum UV Index (UVI) for Moncagua 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 Moncagua typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec11121414141413131313109
Data source: Moncagua 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 Moncagua Compares to Other Months

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

This table compares monthly weather conditions in Moncagua, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (82°F)1 mm (0.0 inches)63%extreme
February Weather29°C (84°F)2 mm (0.1 inches)62%extreme
March Weather30°C (86°F)5 mm (0.2 inches)59%extreme
April Weather30°C (86°F)40 mm (1.6 inches)59%extreme
May Weather28°C (83°F)294 mm (11.6 inches)59%extreme
June Weather27°C (81°F)347 mm (13.6 inches)68%extreme
July Weather28°C (83°F)131 mm (5.2 inches)77%extreme
August Weather28°C (82°F)316 mm (12.4 inches)79%extreme
September Weather27°C (81°F)300 mm (11.8 inches)77%extreme
October Weather26°C (80°F)371 mm (14.6 inches)77%extreme
November Weather26°C (80°F)73 mm (2.9 inches)75%very high
December Weather27°C (80°F)5 mm (0.2 inches)66%very high

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