The weather in San Salvador in September is very hot. The average temperatures are between 24°C and 31°C, drinking water regularly is advisable.
There’s going to be many days of rain during the month of September in San Salvador.
San Salvador should expect an average of 15 to 22 days of rain, so be sure to bring along a waterproof jacket to stay dry this month!
Our weather forecast can give you a great sense of what weather to expect in San Salvador in September 2025.
If you’re planning to visit San Salvador in the near future, we highly recommend that you review the 14 day weather forecast for San Salvador before you arrive.
Temperatures
31° / 24°
Rainy Days
17
Snowy Days
0
Dry Days
13
Rainfall
383
mm
Sun Hours
10.8
Hrs
