The weather in Sarawak in September is very hot. The average temperatures are between 24°C and 32°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Sarawak. 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 Sarawak in September 2025.
If you’re planning to visit Sarawak in the near future, we highly recommend that you review the 14 day weather forecast for Sarawak before you arrive.
Temperatures
32° / 24°
Rainy Days
9
Snowy Days
0
Dry Days
21
Rainfall
141
mm
Sun Hours
10.5
Hrs
