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Baltic Sea water temperature

Baltic Sea, Wustrow · Sea/Coast

The current water temperature at Baltic Sea is 13.5 °C (as of October 16, 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.

13.5 °C
Measured: October 16, 2026 · continuously updated
💧 Water 13.5° · ☀️ Air 12.5° · high today 17.7°
Temperature trend of recent weeks
Baltic Sea
Photo: Bybbisch94, Christian Gebhardt · CC BY-SA 4.0 · Wikimedia Commons

Water quality

EU classification: excellent

Measurement series & statistics

This measurement series includes 799 data points since August 17, 2026.

Lowest recorded value: 13.4 °C on October 15, 2026 · highest value: 19.4 °C on August 31, 2026.

In October, temperatures have ranged between 13.4 °C and 16.4 °C.

The current value is 1.6 °C below the October average of this series.

Nearby waters

More measuring points: Baltic Sea

Frequently asked questions

Can you swim at Baltic Sea right now?
The current water temperature is 13.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Baltic Sea?
Currently 13.5 °C (updated continuously).

How warm is at Baltic Sea in October?
In October, the water temperature recently averaged 15.1 °C.

When is the water warmest at Baltic Sea?
Across the measurement record, August is on average the warmest month (18.9 °C).

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

Open in the BrrChecker app

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