The temperatures in Sundsvall in May are quite cold with temperatures between 5°C and 13°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Sundsvall during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Sundsvall can expect a few days of snow in May.
Our weather forecast can give you a great sense of what weather to expect in Sundsvall in May 2026.
If you’re planning to visit Sundsvall in the near future, we highly recommend that you review the 14 day weather forecast for Sundsvall before you arrive.
Temperatures
13° / 5°
Rainy Days
6
Snowy Days
2
Dry Days
24
Rainfall
65
mm
Sun Hours
8.9
Hrs
