Attersee, Weißenbach, Steinbach am Attersee · Lake
The current water temperature at Attersee is 19.4 °C (as of September 20, 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.
This measurement series includes 814 data points since July 22, 2026.
Lowest recorded value: 19.3 °C on September 19, 2026 · highest value: 27.5 °C on July 31, 2026.
In September, temperatures have ranged between 19.3 °C and 24.6 °C.
The current value is 2.0 °C below the September average of this series.
Can you swim at Attersee right now?
The current water temperature is 19.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Attersee?
Currently 19.4 °C (updated continuously).
How warm is at Attersee in September?
In September, the water temperature recently averaged 21.4 °C.
When is the water warmest at Attersee?
Across the measurement record, August is on average the warmest month (23.1 °C).
How is the water quality at Attersee?
The official classification is: excellent.