World Resorts Norway Trondheim Weather

Trondheim 14 Days Forecast

21.12
sun
Day
36°F
N 4 mph
Precip.
0%
Night
34°F
NW 2 mph
Precip.
0%
22.12
mon
Day
32°F
W 5 mph
Precip.
0%
Night
30°F
W 9 mph
Precip.
0%
23.12
tue
Day
28°F
W 6 mph
Precip.
0%
Night
27°F
N 4 mph
Precip.
0%
24.12
wed
Day
36°F
N 6 mph
Precip.
0%
Night
32°F
NE 6 mph
Precip.
0%
25.12
thu
Day
30°F
N 3 mph
Precip.
0%
Night
28°F
NW 3 mph
Precip.
0%
26.12
fri
Day
28°F
N 3 mph
Precip.
0%
Night
36°F
E 9 mph
Precip.
100%
27.12
sat
Day
37°F
SE 16 mph
Precip.
100%
Night
34°F
SE 6 mph
Precip.
26%
28.12
sun
Day
28°F
NE 9 mph
Precip.
0%
Night
37°F
E 17 mph
Precip.
100%
29.12
mon
Day
37°F
SE 22 mph
Precip.
100%
Night
36°F
SE 21 mph
Precip.
100%
30.12
tue
Day
32°F
SE 19 mph
Precip.
100%
Night
30°F
NE 2 mph
Precip.
100%
31.12
wed
Day
28°F
N 2 mph
Precip.
21%
Night
28°F
NE 2 mph
Precip.
100%
01.01
thu
Day
27°F
N 7 mph
Precip.
100%
Night
39°F
E 21 mph
Precip.
100%
02.01
fri
Day
39°F
E 14 mph
Precip.
100%
Night
39°F
E 20 mph
Precip.
100%

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

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

Trondheim
+39°F
NE 8 mph
Feels like: +34°F
Precip.: 79%
Places in Norway:
Name
°F
+41°F
+21°F
+43°F
+32°F
+45°F
+34°F
+39°F
+10°F
+16°F
+32°F
24 Hours Forecast
Trondheim
Local time: 01:19
December 21, sunday
0300
37°F
NE
9 mph
0600
36°F
NE
7 mph
0900
36°F
NE
6 mph
1200
36°F
N
4 mph
1500
37°F
NE
2 mph
1800
34°F
W
2 mph
2100
34°F
NW
2 mph
December 22, monday
0000
34°F
NW
2 mph
Units of measurement: °C / °F