North Sea water temperature
North Sea, Bathing Water Eec - Thames Estuary, Chalkwell · Sea/Coast
The current water temperature at North Sea is 18.5 °C (as of September 10, 2026, source: official monitoring networks).
The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.
Measurement series & statistics
This measurement series includes 8 data points since July 27, 2026.
Lowest recorded value: 18.5 °C on August 24, 2026 · highest value: 24.1 °C on August 2, 2026.
In September, temperatures have ranged between 18.5 °C and 21.5 °C.
Nearby waters
More measuring points: North Sea
Frequently asked questions
Can you swim at North Sea right now?
The current water temperature is 18.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at North Sea?
Currently 18.5 °C (updated continuously).
