Skagerrak water temperature

Skagerrak, Koster · Sea/Coast

The current water temperature at Skagerrak is 15.8 °C (as of September 19, 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.

15.8 °C

Measured: September 19, 2026 · continuously updated

💧 Water 15.8° · ☀️ Air 9.5° · high today 14.2°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 235 data points since August 17, 2026.

Lowest recorded value: 15.7 °C on September 11, 2026 · highest value: 19.2 °C on August 26, 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 Bovallstrand, Badholmarna18.0 °C Hästedalen, Hunnebostrand18.0 °C Tången, Kungshamn18.0 °C

Frequently asked questions

Can you swim at Skagerrak right now?
The current water temperature is 15.8 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Skagerrak?
Currently 15.8 °C (updated continuously).

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