World Resorts Norway Trondheim Weather

Trondheim 7 Days Forecast

17.05
sun
Day
50°F
SE 4 mph
Precip.
89%
Night
45°F
SW 2 mph
Precip.
0%
18.05
mon
Day
54°F
NW 7 mph
Precip.
0%
Night
50°F
W 10 mph
Precip.
0%
19.05
tue
Day
57°F
NW 12 mph
Precip.
0%
Night
46°F
E 4 mph
Precip.
0%
20.05
wed
Day
57°F
NW 4 mph
Precip.
0%
Night
50°F
NW 2 mph
Precip.
0%
21.05
thu
Day
48°F
E 3 mph
Precip.
100%
Night
46°F
NE 3 mph
Precip.
79%
22.05
fri
Day
50°F
N 1 mph
Precip.
100%
Night
46°F
N 1 mph
Precip.
100%
23.05
sat
Day
48°F
E 3 mph
Precip.
0%
Night
43°F
E 4 mph
Precip.
0%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 46.6°F. The highest and lowest sea temperatures during the month were 48.4°F and 45.5°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:
July 8 days
May 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 26.7 °F
February 29.5 °F
December 29.7 °F
Rainiest months:
September 6 days
July 5 days
August 5 days
Windiest months:
January 8.3 mph
December 8.0 mph
March 7.9 mph

Trondheim on a weather map

Current weather
03:11
Trondheim
+45°F
NW 7 mph
Feels like: +41°F
Precip.: 0%
Places in Norway:
Name
°F
Bergen
+43°F
Lillehammer
+37°F
Ålesund
+46°F
Oslo
+43°F
Stavanger
+46°F
Tromse
+43°F
Trondheim
+45°F
Flam
+28°F
Hemsedal
+34°F
Holmenkollen
+39°F
24 Hours Forecast
Trondheim
Local time: 03:11
May 17, sunday
0600
43°F
NW
5 mph
0900
46°F
N
4 mph
1200
50°F
SE
4 mph
1500
52°F
SE
7 mph
1800
52°F
SE
8 mph
2100
48°F
E
3 mph
May 18, monday
0000
45°F
SW
2 mph
0300
43°F
W
4 mph
Units of measurement: °C / °F