Norwegian Sea, Trondheim · Sea/Coast
The current water temperature at Norwegian Sea is 11.7 °C (as of September 20, 2026, source: Open-Meteo marine model).
The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.
This measurement series includes 609 data points since July 22, 2026.
Lowest recorded value: 11.7 °C on September 20, 2026 · highest value: 15.4 °C on July 31, 2026.
In September, temperatures have ranged between 11.7 °C and 14.5 °C.
The current value is 1.7 °C below the September average of this series.
Can you swim at Norwegian Sea right now?
The current water temperature is 11.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Norwegian Sea?
Currently 11.7 °C (updated continuously).
How warm is at Norwegian Sea in September?
In September, the water temperature recently averaged 13.4 °C.
When is the water warmest at Norwegian Sea?
Across the measurement record, July is on average the warmest month (14.8 °C).