Baltic Sea water temperature

Baltic Sea, Smitingen (Härnösand) · Sea/Coast

The current water temperature at Baltic Sea is 14.5 °C (as of September 1, 2026, source: Open-Meteo marine model).

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

14.5 °C

Measured: September 1, 2026 · continuously updated

💧 Water 14.5° · ☀️ Air 12.9° · high today 17.1°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 589 data points since July 3, 2026.

Lowest recorded value: 10.5 °C on July 26, 2026 · highest value: 17.6 °C on July 14, 2026.

Nearby waters

Härnön, Smitingens badplats · 2.7 km away17.0 °C Bottnischer Meerbusen, Lunde · 30.5 km away16.1 °C Bottnischer Meerbusen, Tranviken Alnö · 36.9 km away15.0 °C Bottnischer Meerbusen, Njurunda · 47.0 km away15.0 °C Bottnischer Meerbusen, Norrbyn · 134.9 km away16.1 °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 14.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Baltic Sea?
Currently 14.5 °C (updated continuously).

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