The temperatures in Niseko in May are quite cold with temperatures between 6°C and 15°C, warm clothes are a must.
You can expect rain for roughly half of the month of May in Niseko. 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.
Please note that Niseko can expect a few days of snow in May.
Our weather forecast can give you a great sense of what weather to expect in Niseko in May 2025.
If you’re planning to visit Niseko in the near future, we highly recommend that you review the 14 day weather forecast for Niseko before you arrive.
Temperatures
15° / 6°
Rainy Days
8
Snowy Days
1
Dry Days
22
Rainfall
138
mm
Sun Hours
5.8
Hrs
