The weather in Santa Clara in September is very hot. The average temperatures are between 23°C and 31°C, drinking water regularly is advisable.
There’s going to be many days of rain during the month of September in Santa Clara.
Santa Clara 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 Santa Clara in September 2025.
If you’re planning to visit Santa Clara in the near future, we highly recommend that you review the 14 day weather forecast for Santa Clara before you arrive.
Temperatures
31° / 23°
Rainy Days
18
Snowy Days
0
Dry Days
12
Rainfall
304
mm
Sun Hours
11.3
Hrs
