World Resorts Norway Trondheim Weather

Trondheim Sea Temperature in September

Average sea water temperature in September:
+54.9°F
Minimum sea water temperature in September: 60.1°F
Maximum sea water temperature in September: 50.0°F

Daily sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 55.0°F. The highest and lowest sea temperatures during the month were 58.6°F and 51.8°F.

Monthly sea water temperature in Trondheim, °F

Which Norway resorts have warmest sea in September?

Place name September 2026 September 2025
Oslo 60.8°F 60.7°F
Holmenkollen 60.8°F 60.7°F
Stavanger 58.2°F 60.0°F
Bergen 55.9°F 56.8°F
Ålesund 55.0°F 57.5°F
Trondheim 55.0°F 56.0°F
Tromse 49.5°F 50.4°F

Best time for vacation in Trondheim

Sunniest months:
July 8 days
May 8 days
August 8 days
Warmest months:
July 63.4 °F
August 61.6 °F
June 58.8 °F
Warmest sea temp:
July 59.4 °F
August 59.3 °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
02:15
Trondheim
+48°F
NW 19 mph
Feels like: +43°F
Precip.: 20%
Places in Norway:
Name
°F
Bergen
+45°F
Lillehammer
+43°F
Ålesund
+52°F
Oslo
+46°F
Stavanger
+52°F
Tromse
+39°F
Trondheim
+48°F
Flam
+32°F
Hemsedal
+36°F
Holmenkollen
+43°F
24 Hours Forecast
Trondheim
Local time: 02:15
October 26, monday
0300
48°F
NW
19 mph
0600
48°F
NW
9 mph
0900
48°F
N
5 mph
1200
50°F
N
6 mph
1500
50°F
N
2 mph
1800
48°F
N
6 mph
2100
48°F
NE
11 mph
October 27, tuesday
0000
48°F
E
19 mph
Units of measurement: °C / °F