September weather forecast
El Salvador

September in El Salvador brings about a continuation of the rainy season, with rainfall levels similar to those in August. The temperatures remain consistent with the tropical savanna climate, generally ranging from 20°C (68°F) to 30°C (86°F). Coastal regions and lower altitudes experience the warmer side of this range, while higher altitude regions like Santa Ana witness slightly cooler temperatures.

In San Salvador, the capital city, average temperatures in September hover around 27°C (80.6°F), consistent with the preceding rainy months. Meanwhile, Santa Ana, due to its higher altitude, experiences slightly cooler average temperatures, around 24°C (75.2°F).

September continues to see substantial rainfall, with precipitation levels similar to August, one of the peak rainfall months of the year. Rain typically falls in the form of afternoon and evening showers, while mornings often remain clear and sunny.

Compared to August, September maintains similar weather conditions. The frequency and volume of rainfall remain high, and afternoon and evening showers are a common occurrence. Despite the high likelihood of rain, the morning hours typically provide suitable conditions for outdoor activities and exploration. As always during the rainy season, visitors should be prepared for sudden rain showers.

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• San Salvador - September »
  The months with the highest humidity in San Salvador are September and October, with an average relative humidity of 82%. The months with the highest humidity in San Salvador are September and October, with an average relative humidity of 82%.
• Santa Ana - September »
  In Santa Ana in September, during 24.7 rainfall days, 141mm (5.55") of precipitation is typically accumulated. In Santa Ana, during September, the rain falls for 24.7 days and regularly aggregates up to 141mm (5.55") of precipitation.
• San Miguel - September »
  September and October, when the average high-temperature in San Miguel reaches 30°C (86°F), are the coldest months. February through September, with an average maximum UV index of 12, are months with the highest UV index in San Miguel, El Salvador.
• Soyapango - September »
  September and October, with an average relative humidity of 82%, are most humid months in Soyapango. In Soyapango, in September, during 26.5 rainfall days, 150mm (5.91") of precipitation is typically accumulated.
• Santa Tecla - September »
  On the first day of September in Santa Tecla, sunrise is at 05:45 and sunset at 18:08. September and November, with an average high-temperature of 29°C (84.2°F), are the coldest months in Santa Tecla.
• Mejicanos - September »
  The months with the highest humidity in Mejicanos are September and October, with an average relative humidity of 82%. In Mejicanos in September, during 26.3 rainfall days, 142mm (5.59") of precipitation is typically accumulated.
• Apopa - September »
  September and October, with an average relative humidity of 82%, are the most humid months in Apopa. In Apopa during September, the rain falls for 26.5 days and regularly aggregates up to 150mm (5.91") of precipitation.
• Delgado - September »
  September and October, with an average relative humidity of 82%, are most humid months in Delgado. September marks an important transition in Delgado, El Salvador's annual weather cycle as it shifts from the wet monsoon period to the cooler dry spell.
• Ahuachapan - September »
  September and October, with an average relative humidity of 84%, are the most humid months in Ahuachapan. September and October, with an average relative humidity of 84%, are most humid months in Ahuachapan.
• Ilopango - September »
  The months with the highest humidity in Ilopango, El Salvador, are September and October, with an average relative humidity of 82%. In Ilopango in September, it is raining for 26.5 days, with typically 150mm (5.91") of accumulated precipitation.
• San Marcos - September »
  September and October, with an average relative humidity of 82%, are the most humid months in San Marcos, El Salvador. In San Marcos, El Salvador, during September, the rain falls for 26.5 days and regularly aggregates up to 150mm (5.91") of precipitation.