Baltic Sea water temperature

Baltic Sea, Hamnviken · Sea/Coast

The current water temperature at Baltic Sea is 11.1 °C (as of October 16, 2026, source: official monitoring networks).

Official sample from August 3, 2026: 20.0 °C · current reading from Nynäshamn (2031 m away).

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

11.1 °C

Measured: October 16, 2026 · continuously updated

💧 Water 11.1° · ☀️ Air 13.5° · high today 14.7°

Baltic Sea — Photo: Mats Sjödin · CC BY 3.0 · Wikimedia Commons

Water quality

EU classification: excellent

Nearby waters

Baltic Sea, Nickstabadet · 1.9 km away11.1 °C Baltic Sea, Nynäshamn · 2.0 km away11.1 °C Baltic Sea, Landsort · 13.9 km away10.9 °C Baltic Sea, Östnora · 19.6 km away17.0 °C Baltic Sea, Trosa Havsbad · 20.2 km away17.0 °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 11.1 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Baltic Sea?
Currently 11.1 °C (updated continuously).

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

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