The weather in Tainan in May is very hot. The average temperatures are between 25°C and 29°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of May in Tainan. 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 Tainan in May 2025.
If you’re planning to visit Tainan in the near future, we highly recommend that you review the 14 day weather forecast for Tainan before you arrive.
Temperatures
29° / 25°
Rainy Days
14
Snowy Days
0
Dry Days
17
Rainfall
111
mm
Sun Hours
1.9
Hrs