BrrChecker

Baltic Sea water temperature

Baltic Sea, Stenshuvud · Sea/Coast

The current water temperature at Baltic Sea is 17.8 °C (as of July 20, 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.

17.8 °C
Measured: July 20, 2026 · continuously updated
💧 Water 17.8° · ☀️ Air 17.1° · high today 19.3°
Baltic Sea
Photo: Jorchr · CC BY-SA 3.0 · Wikimedia Commons

Water quality

EU classification: excellent

Nearby waters

More measuring points: Baltic Sea

Frequently asked questions

Can you swim at Baltic Sea right now?
The current water temperature is 17.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Baltic Sea?
Currently 17.8 °C (updated continuously).

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

Open in the BrrChecker app

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