Current sea water temperature:
+38.1°F
| Minimum sea water temperature in January: | 36.7°F |
| Maximum sea water temperature in January: | 29.1°F |
| Average sea water temperature in January: | 33.0°F |
| more information | |
14 days
forecast
forecast
| Sundsvall |
monthly
weather
weather
| Sundsvall |
Sea water temperature for the last 10 days:
| December 31 | 38.1°F | December 26 | 38.7°F |
| December 30 | 37.9°F | December 25 | 37.2°F |
| December 29 | 39.0°F | December 24 | 36.7°F |
| December 28 | 39.7°F | December 23 | 35.2°F |
| December 27 | 38.3°F | December 22 | 35.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Sundsvall?
Based on the data about daily sea water temperature for the last three years the warmest sea in Sundsvall was noticed in August, July and September.
Monthly Sea Temperatures in Sundsvall, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 61.8°F. The highest and lowest sea temperatures during the month were 70.3°F and 55.2°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 63.6°F. The highest and lowest sea temperatures during the month were 70.7°F and 55.2°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 57.5°F. The highest and lowest sea temperatures during the month were 60.6°F and 53.1°F.
current
weather
weather
| Sundsvall |
weather in
January
January
| Sundsvall |
Best time for vacation in Sundsvall
Sundsvall on a weather map
Places in Sweden:
Name
°F
24 Hours Forecast
Sundsvall
Local time: 22:56
January 01, thursday
0000
27°F
N
10 mph
10 mph
0300
27°F
N
10 mph
10 mph
0600
27°F
N
11 mph
11 mph
0900
28°F
NW
9 mph
9 mph
1200
32°F
NW
16 mph
16 mph
1500
32°F
NW
19 mph
19 mph
1800
28°F
W
22 mph
22 mph
2100
27°F
W
22 mph
22 mph
