The climate in San Salvador during September can be summarized as warm, humid and very wet.
September is in the fall / autumn in San Salvador and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 17°C (62°F) is normal.
|Daytime temperature||27.8°C 82°F|
|Nightly temperature||16.8°C 62.2°F|
|Average temperature||22.3°C 72.1°F|
|Daily sunshine||6.3 hrs|
|Avg rainfall||336 mm 13.2 ins|
|Rainy days||29 days|
|Sea temperature||29.5°C 85°F|
|Windspeed||7.6kph 5 mph|
On average September is the wettest month of the year in San Salvador with around 336mm 13.2 inches of rain making it a very wet time to visit. This rainfall is typically spread over 29 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.3 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Salvador in September 2023.
|Hottest month:||April||31.2°C 88.2°F|
|Driest month:||February||4mm 0.2ins|
|Coldest month:||December||28.5°C 83.3°F|
|Wettest month:||September||336mm 13.2ins|