Average sea water temperature in September:
+49.4°F
| Minimum sea water temperature in September: | 55.0°F |
| Maximum sea water temperature in September: | 45.7°F |
Daily sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 50.4°F. The highest and lowest sea temperatures during the month were 52.2°F and 48.9°F.
Monthly sea water temperature in Tromse, °F
Which Norway resorts have warmest sea in September?
| Place name | September 2025 | September 2024 |
|---|---|---|
| Holmenkollen | 60.7°F | 60.2°F |
| Oslo | 60.7°F | 60.3°F |
| Stavanger | 60.0°F | 59.6°F |
| Ålesund | 57.5°F | 57.3°F |
| Bergen | 56.8°F | 57.3°F |
| Trondheim | 56.0°F | 56.8°F |
| Tromse | 50.4°F | 53.3°F |
Best time for vacation in Tromse
Tromse on a weather map
Places in Norway:
Name
°F
24 Hours Forecast
Tromse
Local time: 09:44
June 26, friday
1200

52°F
N
7 mph
7 mph
1500

52°F
NE
4 mph
4 mph
1800

52°F
S
2 mph
2 mph
2100

52°F
NE
2 mph
2 mph
June 27, saturday
0000

50°F
N
5 mph
5 mph
0300

50°F
N
8 mph
8 mph
0600

48°F
NE
17 mph
17 mph
0900

50°F
NE
23 mph
23 mph



























