North Sea water temperature
North Sea, Dornumersiel · Sea/Coast
The current water temperature at North Sea is 14.1 °C (as of October 16, 2026, source: Copernicus Marine Service).
The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.
Water quality
EU classification: excellentMeasurement series & statistics
This measurement series includes 783 data points since August 17, 2026.
Lowest recorded value: 14.1 °C on October 15, 2026 · highest value: 20.5 °C on August 17, 2026.
In October, temperatures have ranged between 14.1 °C and 17.3 °C.
The current value is 2.3 °C below the October average of this series.
Nearby waters
More measuring points: North Sea
Frequently asked questions
Can you swim at North Sea right now?
The current water temperature is 14.1 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at North Sea?
Currently 14.1 °C (updated continuously).
How warm is at North Sea in October?
In October, the water temperature recently averaged 16.4 °C.
When is the water warmest at North Sea?
Across the measurement record, August is on average the warmest month (19.8 °C).
How is the water quality at North Sea?
The official classification is: excellent.
