The weather in Cayo Santa Maria in September is very hot. The average temperatures are between 25°C and 32°C, drinking water regularly is advisable.
There’s going to be many days of rain during the month of September in Cayo Santa Maria.
Cayo Santa Maria 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 Cayo Santa Maria in September 2025.
If you’re planning to visit Cayo Santa Maria in the near future, we highly recommend that you review the 14 day weather forecast for Cayo Santa Maria before you arrive.
Temperatures
32° / 25°
Rainy Days
19
Snowy Days
0
Dry Days
11
Rainfall
300
mm
Sun Hours
11.6
Hrs
