Wörthersee, Klagenfurt water temperature
Wörthersee, Klagenfurt, Klagenfurt · Lake
The current water temperature at Wörthersee is 22.5 °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.
Water quality
EU classification: excellent · Visibility depth: 4.5 mMeasurement series & statistics
This measurement series includes 411 data points since July 22, 2026.
Lowest recorded value: 22.4 °C on September 20, 2026 · highest value: 28.6 °C on August 5, 2026.
In September, temperatures have ranged between 22.4 °C and 26.1 °C.
The current value is 2.5 °C below the September average of this series.
Nearby waters
Frequently asked questions
Can you swim at Wörthersee right now?
The current water temperature is 22.5 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Wörthersee?
Currently 22.5 °C (updated continuously).
How warm is at Wörthersee in September?
In September, the water temperature recently averaged 25.0 °C.
When is the water warmest at Wörthersee?
Across the measurement record, August is on average the warmest month (26.9 °C).
How is the water quality at Wörthersee?
The official classification is: excellent.
