Current sea water temperature:
+39.4°F
| Minimum sea water temperature in April: | 42.6°F |
| Maximum sea water temperature in April: | 30.7°F |
| Average sea water temperature in April: | 34.9°F |
| more information | |
14 days
forecast
forecast
| Sundsvall |
monthly
weather
weather
| Sundsvall |
Sea water temperature for the last 10 days:
| April 26 | 39.4°F | April 21 | 39.2°F |
| April 25 | 41.4°F | April 20 | 39.0°F |
| April 24 | 40.6°F | April 19 | 37.9°F |
| April 23 | 41.4°F | April 18 | 37.4°F |
| April 22 | 41.7°F | April 17 | 36.7°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
May
May
| Sundsvall |
Best time for vacation in Sundsvall
Sundsvall on a weather map
Places in Sweden:
Name
°F
24 Hours Forecast
Sundsvall
Local time: 23:41
April 27, monday
0000
36°F
SE
12 mph
12 mph
0300
34°F
SE
12 mph
12 mph
0600
34°F
SE
13 mph
13 mph
0900
41°F
SE
14 mph
14 mph
1200
46°F
S
11 mph
11 mph
1500
46°F
S
11 mph
11 mph
1800
45°F
S
11 mph
11 mph
2100
39°F
S
7 mph
7 mph
