The weather in Sumatra in May is very hot. The average temperatures are between 24°C and 34°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of May in Sumatra. 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 Sumatra in May 2025.
If you’re planning to visit Sumatra in the near future, we highly recommend that you review the 14 day weather forecast for Sumatra before you arrive.
Temperatures
34° / 24°
Rainy Days
13
Snowy Days
0
Dry Days
18
Rainfall
254
mm
Sun Hours
11.3
Hrs
