The temperatures in Saint James during September are extremely high, between 27°C and hot as 30°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Saint James. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Saint James in September 2025.
If you’re planning to visit Saint James in the near future, we highly recommend that you review the 14 day weather forecast for Saint James before you arrive.
Temperatures
30° / 27°
Rainy Days
13
Snowy Days
0
Dry Days
17
Rainfall
199
mm
Sun Hours
11.7
Hrs
