Baltic Sea water temperature

Baltic Sea, Władysławowo · Sea/Coast

The current water temperature at Baltic Sea is 17.5 °C (as of August 31, 2026, source: IMGW).

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

17.5 °C

Measured: August 31, 2026 · continuously updated

💧 Water 17.5° · ☀️ Air 15.7° · high today 19.0°

Temperature trend of recent weeks

Baltic Sea — Photo: DARIUSzpre · CC BY 3.0 · Wikimedia Commons

Water quality

EU classification: excellent

Measurement series & statistics

This measurement series includes 55 data points since July 8, 2026.

Lowest recorded value: 13.6 °C on August 29, 2026 · highest value: 20.0 °C on August 4, 2026.

Nearby waters

Zatoka Pucka, Puck · 8.3 km away19.5 °C Baltic Sea, Jastarnia · 19.9 km away19.0 °C Baltic Sea, Dębki · 23.1 km away19.0 °C Baltic Sea, Gdynia · 32.2 km away19.0 °C Baltic Sea, Gdynia · 32.3 km away19.2 °C

More measuring points: Baltic Sea

Färjestaden, Granudden/Talludd22.0 °C Hägernäsbadet22.0 °C Näsaängsbadet22.0 °C Eriksöre camping, Eriksöre21.0 °C Nickstabadet21.0 °C Saxnäs21.0 °C

Frequently asked questions

Can you swim at Baltic Sea right now?
The current water temperature is 17.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Baltic Sea?
Currently 17.5 °C (updated continuously).

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

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