Tyrrhenian Sea water temperature
Tyrrhenian Sea, Nettuno · Sea/Coast
The current water temperature at Tyrrhenian Sea is 26.7 °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 610 data points since July 22, 2026.
Lowest recorded value: 26.4 °C on September 15, 2026 · highest value: 29.8 °C on August 16, 2026.
In September, temperatures have ranged between 26.4 °C and 28.6 °C.
The current value is 0.6 °C below the September average of this series.
Nearby waters
More measuring points: Tyrrhenian Sea
Frequently asked questions
Can you swim at Tyrrhenian Sea right now?
The current water temperature is 26.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Tyrrhenian Sea?
Currently 26.7 °C (updated continuously).
How warm is at Tyrrhenian Sea in September?
In September, the water temperature recently averaged 27.3 °C.
When is the water warmest at Tyrrhenian Sea?
Across the measurement record, August is on average the warmest month (29.0 °C).
How is the water quality at Tyrrhenian Sea?
The official classification is: excellent.
