Kattegat water temperature

Kattegat, Tylösand · Sea/Coast

The current water temperature at Kattegat is 18.2 °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.

18.2 °C

Measured: September 1, 2026 · continuously updated

💧 Water 18.2° · ☀️ Air 14.6° · high today 18.3°

Temperature trend of recent weeks

Kattegat — Photo: Sendelbach (talk) · CC BY-SA 3.0 · Wikimedia Commons

Water quality

EU classification: excellent

Measurement series & statistics

This measurement series includes 595 data points since July 3, 2026.

Lowest recorded value: 17.8 °C on August 27, 2026 · highest value: 20.7 °C on July 12, 2026.

Nearby waters

Kattegat, Svärjarehålan · 1.0 km away17.0 °C Kattegat, Frösakull, First camp · 1.3 km away17.0 °C Kattegat, Frösakull · 2.4 km away18.0 °C Kattegat, Ringenäs · 3.8 km away17.0 °C Kattegat, Vilshärad · 6.1 km away17.0 °C

More measuring points: Kattegat

Arild, Kallbadhuset20.0 °C Farhultsbaden20.0 °C Hönö, Hästen20.0 °C Hönö, Lapposand20.0 °C Laholmsbukten, Birger Pers väg20.0 °C Laholmsbukten, Fiskaregatan20.0 °C

Frequently asked questions

Can you swim at Kattegat right now?
The current water temperature is 18.2 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Kattegat?
Currently 18.2 °C (updated continuously).

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

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