Current sea water temperature:
+43.7°F
| Minimum sea water temperature in December: | 47.7°F |
| Maximum sea water temperature in December: | 36.3°F |
| Average sea water temperature in December: | 43.1°F |
| more information | |
14 days
forecast
forecast
| Trondheim |
monthly
weather
weather
| Trondheim |
Sea water temperature for the last 10 days:
| December 5 | 43.7°F | November 30 | 44.1°F |
| December 4 | 43.2°F | November 29 | 44.1°F |
| December 3 | 45.3°F | November 28 | 43.9°F |
| December 2 | 44.1°F | November 27 | 44.1°F |
| December 1 | 44.1°F | November 26 | 44.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Trondheim?
Based on the data about daily sea water temperature for the last three years the warmest sea in Trondheim was noticed in July, August and September.
Monthly Sea Temperatures in Trondheim, °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 71.6°F and 55.6°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 60.0°F. The highest and lowest sea temperatures during the month were 67.6°F and 55.4°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 56.0°F. The highest and lowest sea temperatures during the month were 59.4°F and 52.3°F.
current
weather
weather
| Trondheim |
weather in
December
December
| Trondheim |
Best time for vacation in Trondheim
Trondheim on a weather map
Places in Norway:
Name
°F
24 Hours Forecast
Trondheim
Local time: 08:37
December 05, friday
0900
32°F
W
7 mph
7 mph
1200
34°F
W
8 mph
8 mph
1500
34°F
W
10 mph
10 mph
1800
34°F
W
7 mph
7 mph
2100
36°F
NW
8 mph
8 mph
December 06, saturday
0000
37°F
NW
9 mph
9 mph
0300
36°F
NW
9 mph
9 mph
0600
37°F
NW
10 mph
10 mph
