Skagerrak water temperature

Skagerrak, Koster · Sea/Coast

The current water temperature at Skagerrak is 18.4 °C (as of August 21, 2026, source: official monitoring networks).

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

18.4 °C

Measured: August 21, 2026 · continuously updated

💧 Water 18.4° · ☀️ Air 14.9° · high today 17.7°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 392 data points since July 3, 2026.

Lowest recorded value: 16.4 °C on July 20, 2026 · highest value: 22.7 °C on July 16, 2026.

Nearby waters

Skagerrak, Saltö · 2.8 km away17.4 °C Skagerrak, Seläter · 8.2 km away17.6 °C Grebbestad · 24.0 km away17.0 °C Skagerrak, Tanum Strand · 25.5 km away17.0 °C Sundshult · 31.7 km away19.0 °C

More measuring points: Skagerrak

Sandön, Smögen19.0 °C Saxenhof19.0 °C Unda camping19.0 °C Uddevalla18.7 °C Stavern18.3 °C Bovallstrand, Badholmarna18.0 °C

Frequently asked questions

Can you swim at Skagerrak right now?
The current water temperature is 18.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Skagerrak?
Currently 18.4 °C (updated continuously).

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