The temperatures in Otaru in May are quite cold with temperatures between 5°C and 15°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Otaru. 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 Otaru in May 2025.
If you’re planning to visit Otaru in the near future, we highly recommend that you review the 14 day weather forecast for Otaru before you arrive.
Temperatures
15° / 5°
Rainy Days
8
Snowy Days
0
Dry Days
22
Rainfall
130
mm
Sun Hours
5.8
Hrs
