Baltic Sea water temperature

Baltic Sea, Kalmarsundsparken · Sea/Coast

The current water temperature at Baltic Sea is 11.7 °C (as of October 16, 2026, source: official monitoring networks).

Official sample from July 29, 2026: 20.0 °C · current reading from Kalmar (1754 m away).

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

11.7 °C

Measured: October 16, 2026 · continuously updated

💧 Water 11.7° · ☀️ Air 15.0° · high today 16.3°

Water quality

EU classification: excellent

Nearby waters

Långviken · 0.9 km away21.0 °C Baltic Sea, Kalmar · 1.8 km away11.7 °C Baltic Sea, Norrlidsbadet · 5.8 km away18.0 °C Baltic Sea, Färjestadens hamn · 6.7 km away20.0 °C Baltic Sea, Färjestaden, Granudden/Talludd · 6.8 km away22.0 °C

More measuring points: Baltic Sea

Färjestaden, Granudden/Talludd22.0 °C Hägernäsbadet22.0 °C Näsaängsbadet22.0 °C Eriksöre camping, Eriksöre21.0 °C Saxnäs21.0 °C Grisslinge havsbad20.3 °C

Frequently asked questions

Can you swim at Baltic Sea right now?
The current water temperature is 11.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Baltic Sea?
Currently 11.7 °C (updated continuously).

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

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