Current sea water temperature:
+40.5°F
| Minimum sea water temperature in December: | 45.9°F |
| Maximum sea water temperature in December: | 28.9°F |
| Average sea water temperature in December: | 38.8°F |
| more information | |
14 days
forecast
forecast
| Oslo |
monthly
weather
weather
| Oslo |
Sea water temperature for the last 10 days:
| December 31 | 40.5°F | December 26 | 39.4°F |
| December 30 | 41.9°F | December 25 | 39.4°F |
| December 29 | 38.8°F | December 24 | 41.7°F |
| December 28 | 36.0°F | December 23 | 41.7°F |
| December 27 | 36.5°F | December 22 | 42.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Oslo?
Based on the data about daily sea water temperature for the last three years the warmest sea in Oslo was noticed in July, August and June.
Monthly Sea Temperatures in Oslo, °F
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 67.6°F. The highest and lowest sea temperatures during the month were 72.3°F and 62.4°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 66.0°F. The highest and lowest sea temperatures during the month were 69.3°F and 63.1°F.
Sea water temperature in June, °F
Show year:
2025
2024
2023
The average sea water temperature in June of 2025 was 58.1°F. The highest and lowest sea temperatures during the month were 63.3°F and 54.0°F.
current
weather
weather
| Oslo |
weather in
January
January
| Oslo |
Best time for vacation in Oslo
Oslo on a weather map
Places in Norway:
Name
°F
24 Hours Forecast
Oslo
Local time: 20:48
December 31, wednesday
2100
25°F
W
1 mph
1 mph
January 01, thursday
0000
25°F
N
1 mph
1 mph
0300
25°F
NE
2 mph
2 mph
0600
27°F
S
3 mph
3 mph
0900
27°F
S
4 mph
4 mph
1200
27°F
SE
3 mph
3 mph
1500
27°F
SE
4 mph
4 mph
1800
30°F
S
12 mph
12 mph
