Cantabrian Sea water temperature

Cantabrian Sea, Castro Urdiales · Sea/Coast

The current water temperature at Cantabrian Sea is 23.0 °C (as of September 1, 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.

23.0 °C

Measured: September 1, 2026 · continuously updated

💧 Water 23.0° · ☀️ Air 21.0°

Temperature trend of recent weeks

Cantabrian Sea — Photo: Giorgio Galeotti · CC BY-SA 4.0 · Wikimedia Commons

Water quality

EU classification: excellent

Measurement series & statistics

This measurement series includes 596 data points since July 3, 2026.

Lowest recorded value: 22.7 °C on July 3, 2026 · highest value: 25.5 °C on August 12, 2026.

Nearby waters

Cantabrian Sea, Laredo · 16.0 km away23.4 °C Cantabrian Sea, Getxo · 17.5 km away23.1 °C Cantabrian Sea, Sopelana / Bilbao · 18.3 km away23.1 °C Cantabrian Sea, Santoña · 20.5 km away23.5 °C Cantabrian Sea, Plentzia · 22.1 km away23.1 °C

More measuring points: Cantabrian Sea

Lekeitio23.5 °C Santoña23.5 °C Bakio23.4 °C Bermeo23.4 °C Getaria23.4 °C Hondarribia23.4 °C

Frequently asked questions

Can you swim at Cantabrian Sea right now?
The current water temperature is 23.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Cantabrian Sea?
Currently 23.0 °C (updated continuously).

How is the water quality at Cantabrian Sea?
The official classification is: excellent.

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