Aegean Sea water temperature
Aegean Sea, Lesbos Mytilene · Sea/Coast
The current water temperature at Aegean Sea is 23.1 °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.
Water quality
EU classification: excellentMeasurement series & statistics
This measurement series includes 609 data points since July 22, 2026.
Lowest recorded value: 22.9 °C on September 9, 2026 · highest value: 26.4 °C on July 22, 2026.
In September, temperatures have ranged between 22.9 °C and 24.7 °C.
The current value is 0.5 °C below the September average of this series.
Nearby waters
More measuring points: Aegean Sea
Frequently asked questions
Can you swim at Aegean Sea right now?
The current water temperature is 23.1 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Aegean Sea?
Currently 23.1 °C (updated continuously).
How warm is at Aegean Sea in September?
In September, the water temperature recently averaged 23.6 °C.
When is the water warmest at Aegean Sea?
Across the measurement record, July is on average the warmest month (24.5 °C).
How is the water quality at Aegean Sea?
The official classification is: excellent.
