Cantabrian Sea water temperature
Cantabrian Sea, Lekeitio · Sea/Coast
The current water temperature at Cantabrian Sea is 20.5 °C (as of October 16, 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.
Water quality
EU classification: excellentMeasurement series & statistics
This measurement series includes 799 data points since August 17, 2026.
Lowest recorded value: 19.9 °C on October 11, 2026 · highest value: 25.7 °C on August 18, 2026.
In October, temperatures have ranged between 19.9 °C and 21.6 °C.
The current value is 0.1 °C below the October average of this series.
Nearby waters
More measuring points: Cantabrian Sea
Frequently asked questions
Can you swim at Cantabrian Sea right now?
The current water temperature is 20.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Cantabrian Sea?
Currently 20.5 °C (updated continuously).
How warm is at Cantabrian Sea in October?
In October, the water temperature recently averaged 20.6 °C.
When is the water warmest at Cantabrian Sea?
Across the measurement record, August is on average the warmest month (24.6 °C).
How is the water quality at Cantabrian Sea?
The official classification is: excellent.
