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Finnischer Meerbusen water temperature

Finnischer Meerbusen, Hanko · Sea/Coast

The current water temperature at Finnischer Meerbusen is 11.8 °C (as of October 15, 2026, source: Copernicus Marine Service).

The sea lags the air by weeks: the warmest water often arrives after the warmest days. Measured buoy values show this honestly.

11.8 °C
Measured: October 15, 2026 · continuously updated
💧 Water 11.8° · ☀️ Air 12.7°
Temperature trend of recent weeks

Water quality

EU classification: excellent

Measurement series & statistics

This measurement series includes 258 data points since September 28, 2026.

Lowest recorded value: 10.9 °C on October 11, 2026 · highest value: 13.2 °C on September 28, 2026.

In October, temperatures have ranged between 10.9 °C and 13.1 °C.

The current value is 0.4 °C below the October average of this series.

Nearby waters

More measuring points: Finnischer Meerbusen

Frequently asked questions

Can you swim at Finnischer Meerbusen right now?
The current water temperature is 11.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Finnischer Meerbusen?
Currently 11.8 °C (updated continuously).

How warm is at Finnischer Meerbusen in October?
In October, the water temperature recently averaged 12.2 °C.

How is the water quality at Finnischer Meerbusen?
The official classification is: excellent.

Open in the BrrChecker app

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