The weather in Belize in September is very hot. The average temperatures are between 25°C and 31°C, drinking water regularly is advisable.
There’s going to be many days of rain during the month of September in Belize.
Belize 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 Belize in September 2025.
If you’re planning to visit Belize in the near future, we highly recommend that you review the 14 day weather forecast for Belize before you arrive.