Current sea water temperature:
+40.3°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: | 38.7°F |
| more information | |
14 days
forecast
forecast
| Oslo |
monthly
weather
weather
| Oslo |
Sea water temperature for the last 10 days:
| December 14 | 40.3°F | December 9 | 42.3°F |
| December 13 | 40.5°F | December 8 | 42.6°F |
| December 12 | 40.5°F | December 7 | 42.3°F |
| December 11 | 41.7°F | December 6 | 42.4°F |
| December 10 | 44.1°F | December 5 | 42.8°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
December
December
| Oslo |
Best time for vacation in Oslo
Oslo on a weather map
Places in Norway:
Name
°F
24 Hours Forecast
Oslo
Local time: 03:17
December 15, monday
0600
46°F
N
11 mph
11 mph
0900
45°F
N
10 mph
10 mph
1200
46°F
N
8 mph
8 mph
1500
45°F
N
6 mph
6 mph
1800
45°F
N
6 mph
6 mph
2100
46°F
N
7 mph
7 mph
December 16, tuesday
0000
46°F
N
9 mph
9 mph
0300
46°F
N
10 mph
10 mph
