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Baltic Sea water temperature

Baltic Sea, Långö · Sea/Coast

The current water temperature at Baltic Sea is 20.0 °C (as of August 2, 2026, source: official monitoring networks).

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

20.0 °C
Measured: August 2, 2026 · continuously updated
💧 Water 20.0° · ☀️ Air 16.7° · high today 20.0°
Temperature trend of recent weeks
Baltic Sea
Photo: Hellstormen · CC BY-SA 3.0 · Wikimedia Commons

Water quality

EU classification: good

Nearby waters

More measuring points: Baltic Sea

Frequently asked questions

Can you swim at Baltic Sea right now?
The current water temperature is 20.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Baltic Sea?
Currently 20.0 °C (updated continuously).

How is the water quality at Baltic Sea?
The official classification is: good.

Open in the BrrChecker app

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