21.12
sun
sun
Day

36°F
N 4 mph
Precip.
0%
0%
Night

34°F
NW 2 mph
Precip.
0%
0%
22.12
mon
mon
Day

32°F
W 5 mph
Precip.
0%
0%
Night

30°F
W 9 mph
Precip.
0%
0%
23.12
tue
tue
Day

28°F
W 6 mph
Precip.
0%
0%
Night

27°F
N 4 mph
Precip.
0%
0%
24.12
wed
wed
Day

36°F
N 6 mph
Precip.
0%
0%
Night

32°F
NE 6 mph
Precip.
0%
0%
25.12
thu
thu
Day

30°F
N 3 mph
Precip.
0%
0%
Night

28°F
NW 3 mph
Precip.
0%
0%
26.12
fri
fri
Day

28°F
N 3 mph
Precip.
0%
0%
Night

36°F
E 9 mph
Precip.
100%
100%
27.12
sat
sat
Day

37°F
SE 16 mph
Precip.
100%
100%
Night

34°F
SE 6 mph
Precip.
26%
26%
28.12
sun
sun
Day

28°F
NE 9 mph
Precip.
0%
0%
Night

37°F
E 17 mph
Precip.
100%
100%
29.12
mon
mon
Day

37°F
SE 22 mph
Precip.
100%
100%
Night

36°F
SE 21 mph
Precip.
100%
100%
30.12
tue
tue
Day

32°F
SE 19 mph
Precip.
100%
100%
Night

30°F
NE 2 mph
Precip.
100%
100%
31.12
wed
wed
Day

28°F
N 2 mph
Precip.
21%
21%
Night

28°F
NE 2 mph
Precip.
100%
100%
01.01
thu
thu
Day

27°F
N 7 mph
Precip.
100%
100%
Night

39°F
E 21 mph
Precip.
100%
100%
02.01
fri
fri
Day

39°F
E 14 mph
Precip.
100%
100%
Night

39°F
E 20 mph
Precip.
100%
100%
sea water
temperature
temperature
| Trondheim |
monthly
weather
weather
| Trondheim |
current
weather
weather
| Trondheim |
7 days
forecast
forecast
| Trondheim |
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.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 41.6°F. The highest and lowest sea temperatures during the month were 43.3°F and 39.0°F.
Air temperature in Trondheim, °F
Precipitation total in Trondheim, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Trondheim
Trondheim on a weather map
Places in Norway:
Name
°F
24 Hours Forecast
Trondheim
Local time: 01:19
December 21, sunday
0300

37°F
NE
9 mph
9 mph
0600

36°F
NE
7 mph
7 mph
0900

36°F
NE
6 mph
6 mph
1200

36°F
N
4 mph
4 mph
1500

37°F
NE
2 mph
2 mph
1800

34°F
W
2 mph
2 mph
2100

34°F
NW
2 mph
2 mph
December 22, monday
0000

34°F
NW
2 mph
2 mph



























