Weather in Sundsvall: August
![]() |
Average day temperature: | 65.6°F |
Average night temperature: | 53.6°F | |
![]() |
Sea water temperature: | 62.1°F |
![]() |
Number of sunny days: | 10 days |
Day length: | 14.5 - 17.4 hours | |
![]() |
Number of rainy days: | 4 days |
Precipitation totals: | 2.0 in. | |
more information |
forecast
Sundsvall |
temperature
Sundsvall |
Air temperature in August, °F
Day temperature | Night temperature |
The highest day temperature during August of 2024 was 74°F. At the same time the lowest night temperature was 50°F. Daily and nightly averages during August were 66.7°F and 56.2°F.
Sea water temperature in Sundsvall in August, °F
The average sea water temperature in August of 2024 was 62.2°F. The highest and lowest sea temperatures during the month were 65.3°F and 58.5°F.
Sunny days | |
Partly cloudy days | |
Cloudy days |
Mostly all days in August are partly cloudy but sunny or cloudy days are also possible.
Precipitation total in August, in.
Precipitation total value in Sundsvall in August is 2.2 in. Other months of the year show relatively similar values.
The average wind speed value in August is 6.6 mph The wind's strength is relatively same during the whole year.
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 7.5.
Best time for vacation in Sundsvall
Sundsvall on a weather map

2 mph

4 mph

6 mph

6 mph

6 mph

4 mph

4 mph

3 mph