Traunsee, Altmünster water temperature

Traunsee, Altmünster, Altmünster · Lake

The current water temperature at Traunsee is 20.9 °C (as of September 1, 2026, source: AGES).

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

20.9 °C

Measured: September 1, 2026 · continuously updated

💧 Water 20.9° · ☀️ Air 15.9° · high today 23.0°

Temperature trend of recent weeks

Water quality

EU classification: excellent · Visibility depth: 6.0 m

Measurement series & statistics

This measurement series includes 971 data points since July 3, 2026.

Lowest recorded value: 19.5 °C on July 10, 2026 · highest value: 24.7 °C on August 9, 2026.

Nearby waters

Traunsee, Gmunden, Gmunden · 0.9 km away20.9 °C Traunsee, Gmunden · 1.7 km away20.9 °C Traun, Theresienthal · 4.1 km away20.3 °C Traunsee, Traunkirchen, Traunkirchen · 5.1 km away20.7 °C Aurach, Aurachkirchen · 8.4 km away19.1 °C

Frequently asked questions

Can you swim at Traunsee right now?
The current water temperature is 20.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Traunsee?
Currently 20.9 °C (updated continuously).

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

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