The temperatures in Sundsvall in August are usually low and can range between 11°C and 19°C.
You can expect about 3 to 8 days of rain in Sundsvall during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Sundsvall in August 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
19° / 11°
Rainy Days
6
Snowy Days
0
Dry Days
25
Rainfall
81
mm
Sun Hours
9.7
Hrs
