The weather in El 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 El Salvador.
El 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 El Salvador in September 2025.
If you’re planning to visit El Salvador in the near future, we highly recommend that you review the 14 day weather forecast for El Salvador before you arrive.