World Resorts Norway Trondheim Weather

Trondheim Sea Temperature in December

Average sea water temperature in December:
+43.1°F
Minimum sea water temperature in December: 47.7°F
Maximum sea water temperature in December: 36.3°F

Daily sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 42.7°F. The highest and lowest sea temperatures during the month were 45.3°F and 40.3°F.

Monthly sea water temperature in Trondheim, °F

Which Norway resorts have warmest sea in December?

Place name December 2025 December 2024
Stavanger 49.1°F 46.0°F
Ålesund 47.7°F 45.5°F
Bergen 47.6°F 44.7°F
Tromse 43.1°F 42.3°F
Trondheim 42.7°F 42.4°F
Holmenkollen 42.3°F 39.7°F
Oslo 42.3°F 39.7°F

Best time for vacation in Trondheim

Sunniest months:
May 8 days
July 8 days
August 8 days
Warmest months:
July 63.8 °F
August 62.1 °F
June 59.0 °F
Warmest sea temp:
July 59.5 °F
August 59.4 °F
September 54.9 °F
Coldest months:
January 27.2 °F
December 29.3 °F
February 29.8 °F
Rainiest months:
September 6 days
March 5 days
July 5 days
Windiest months:
January 8.3 mph
March 8.0 mph
December 8.0 mph

Trondheim on a weather map

Current weather
23:54
Trondheim
+34°F
W 2 mph
Feels like: +32°F
Precip.: 0%
Places in Norway:
Name
°F
Bergen
+37°F
Lillehammer
+19°F
Ålesund
+41°F
Oslo
+28°F
Stavanger
+45°F
Tromse
+23°F
Trondheim
+34°F
Flam
+16°F
Hemsedal
+19°F
Holmenkollen
+28°F
24 Hours Forecast
Trondheim
Local time: 23:54
December 22, monday
0000
34°F
W
2 mph
0300
34°F
NW
2 mph
0600
32°F
NW
2 mph
0900
32°F
W
4 mph
1200
30°F
W
6 mph
1500
30°F
W
6 mph
1800
30°F
W
6 mph
2100
30°F
W
7 mph
Units of measurement: °C / °F