Hallstätter See water temperature

Hallstätter See, Steeg · Lake

The current water temperature at Hallstätter See is 15.5 °C (as of August 31, 2026, source: Hydrographie Land Oberösterreich).

Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.

15.5 °C

Measured: August 31, 2026 · continuously updated

💧 Water 15.5° · ☀️ Air 10.9° · high today 18.8°

Temperature trend of recent weeks

Hallstätter See — Photo: Michielverbeek · CC BY-SA 3.0 · Wikimedia Commons

Measurement series & statistics

This measurement series includes 913 data points since July 3, 2026.

Lowest recorded value: 13.2 °C on August 30, 2026 · highest value: 25.1 °C on August 5, 2026.

Nearby waters

Traun, Steeg (Seeausfluss) · 0.5 km away19.3 °C Hallstättersee, Untersee, Bad Goisern · 1.0 km away21.6 °C Hallstättersee, Hallstatt, Hallstatt · 6.2 km away21.3 °C Hallstättersee, Obertraun, Obertraun · 6.4 km away21.7 °C Hallstätter See, Lahn · 6.4 km away19.2 °C

More measuring points: Hallstätter See

Lahn19.2 °C

Frequently asked questions

Can you swim at Hallstätter See right now?
The current water temperature is 15.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Hallstätter See?
Currently 15.5 °C (updated continuously).

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