World Resorts Norway Trondheim Weather

Trondheim sea water temperature

Current sea water temperature:
+58.3°F
Minimum sea water temperature in August: 67.6°F
Maximum sea water temperature in August: 53.2°F
Average sea water temperature in August: 59.4°F

Sea water temperature for the last 10 days:

August 5 58.3°F July 31 58.1°F
August 4 58.1°F July 30 57.9°F
August 3 59.4°F July 29 57.7°F
August 2 59.7°F July 28 57.9°F
August 1 58.5°F July 27 58.1°F

When is the warmest sea in Trondheim?

Based on the data about daily sea water temperature for the last three years the warmest sea in Trondheim was noticed in August, July and September.

Monthly Sea Temperatures in Trondheim, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 60.0°F. The highest and lowest sea temperatures during the month were 67.6°F and 55.4°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 57.8°F. The highest and lowest sea temperatures during the month were 60.4°F and 54.7°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 56.0°F. The highest and lowest sea temperatures during the month were 59.4°F and 52.3°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 62.1 °F
June 58.8 °F
Warmest sea temp:
August 59.4 °F
July 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

Trondheim
+55°F
SW 9 mph
Feels like: +54°F
Precip.: 10%
Places in Norway:
Name
°F
+59°F
+55°F
+55°F
+63°F
+61°F
+48°F
+55°F
+50°F
+54°F
+61°F
24 Hours Forecast
Trondheim
Local time: 22:28
August 06, thursday
0000
52°F
SW
7 mph
0300
52°F
SW
6 mph
0600
52°F
SW
4 mph
0900
54°F
SE
1 mph
1200
55°F
NE
5 mph
1500
57°F
SE
14 mph
1800
55°F
SE
17 mph
2100
52°F
SE
17 mph
Units of measurement: °C / °F