Current Sea Water Temperature:
+58.2°F
| Maximum Sea Water Temperature in July: | 74.0°F |
| Minimum Sea Water Temperature in July: | 53.0°F |
| Average water temperature in July: | 60.4°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| July 24 | 58.2°F | July 19 | 59.2°F |
| July 23 | 59.2°F | July 18 | 59.6°F |
| July 22 | 58.6°F | July 17 | 59.8°F |
| July 21 | 58.8°F | July 16 | 59.4°F |
| July 20 | 59.0°F | July 15 | 60.0°F |
When is the Warmest Sea for Trondheim?
According to our data for the last three years for Trondheim the highest average sea water temperature was in July, August and September.
Average Water Temperature by Month, °F
Sea Water Temperature in July
The average sea surface temperature in July 2026 for Trondheim was 58.7°F. The maximum and minimum values were 55.2°F and 61.6°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Trondheim was 61.1°F. The maximum and minimum values were 56.0°F and 69.6°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Trondheim was 56.7°F. The maximum and minimum values were 52.6°F and 60.4°F respectively.
Norway Resorts:
NAME
F°
| Ålesund |  |
+56 |
| Bergen | |
+54 |
| Flam | |
+42 |
| Hemsedal |  |
+48 |
| Holmenkollen | |
+54 |
| Lillehammer | |
+52 |
| Oslo | |
+56 |
| Stavanger | |
+58 |
| Tromse |  |
+54 |
| Trondheim |  |
+54 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Trondheim
Local time: 08:16
25 jul, saturday
| 0900 |  |
54°F | W 7 mph |
| 1200 | |
62°F | W 9 mph |
| 1500 |  |
66°F | W 12 mph |
| 1800 | |
66°F | NW 17 mph |
| 2100 |  |
56°F | N 1 mph |
26 jul, sunday
| 0000 |  |
54°F | E 4 mph |
| 0300 | |
50°F | S 1 mph |
| 0600 | |
50°F | NW 4 mph |