San Salvador
El Salvador
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
San Salvador, El Salvador

The sunlit San Salvador city in El Salvador set on the beautiful slopes of the mountain
The sunlit San Salvador city in El Salvador set on the beautiful slopes of the mountain
The first month of the autumn, September, is also a moderately hot month in San Salvador, El Salvador, with average temperature ranging between max 29°C (84.2°F) and min 19.4°C (66.9°F).

Temperature

In September, the average high-temperature is almost the same as in August - a moderately hot 29°C (84.2°F). In September, the average low-temperature is 19.4°C (66.9°F).

Rainfall

The month with the most rainfall in San Salvador is September when the rain falls for 20 days and typically aggregates up to 348mm (13.7") of precipitation.

Daylight

In September, the average length of the day in San Salvador is 12.2h.

Sunshine

In San Salvador, the average sunshine is 6h.

UV index

Months with the highest UV index are February through September, with an average maximum UV index of 12. A UV Index of 11, and more, symbolizes an extreme threat to health from the exposure to the Sun's UV radiation for the average person.
The average daily UV index of 12 transform into the following instructions:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Protect yourself by liberally applying a sunscreen of at least 30 SPF. Sunscreen prevents sunburn and decreases the damaging effects of Sun's radiation on the immune system.

What is the temperature in September in San Salvador?

In September, in San Salvador, El Salvador, the average high-temperature is 29°C (84.2°F), and the average low-temperature is 19.4°C (66.9°F).

How much does it rain in San Salvador in September?

In September, in San Salvador, the rain falls for 20 days. Throughout September, 348mm (13.7") of precipitation is accumulated.

What is the rainiest month in San Salvador?

September is the month with the most rainfall. Rain falls for 20 days and accumulates 348mm (13.7") of precipitation.

What is the average length of the day in September in San Salvador?

The average length of the day in September is 12.2h.

How many hours of sunshine does San Salvador have in September?

In San Salvador, El Salvador, the average sunshine in September is 6h.

When is the highest UV index in San Salvador?

Months with the highest UV index are February through September, with an average maximum UV index of 12.

How high is the UV index in September in San Salvador?

The average daily maximum UV index in September in San Salvador, El Salvador, is 12. A UV Index estimate of 11, and higher, represents an extreme health threat from unsafe exposure to the Sun's UV rays.
Average temperature in September - San Salvador, El Salvador
  • Average high temperature in September: 29°C

The warmest month (with the highest average high temperature) is April (32.2°C).
The month with the lowest average high temperature is November (28°C).

  • Average low temperature in September: 19.4°C

The month with the highest average low temperature is May (20°C).
The coldest month (with the lowest average low temperature) is December (15.1°C).

Average rainfall in September - San Salvador, El Salvador
  • Average rainfall in September: 348mm

The wettest month (with the highest rainfall) is September (348mm).
The driest month (with the lowest rainfall) is February (2mm).

Average rainfall days in September - San Salvador, El Salvador
  • Average rainfall days in September: 20 days

Months with the highest number of rainy days are June, July, August and September (20 days).
Months with the lowest number of rainy days are January, February and March (1 days).

Average daylight in September / Average sunshine in September - San Salvador, El Salvador
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in September: 6h

The month with most sunshine is February (Average sunshine: 9.9h).
The month with least sunshine is June (Average sunshine: 5.8h).

Average UV index in September - San Salvador, El Salvador
  • Average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).