BrrChecker

Längsee water temperature

Längsee, Strandbad Längsee, Sankt Georgen · Lido

The current water temperature at Längsee is 21.0 °C (as of September 20, 2026, source: official monitoring networks).

Pools and lidos follow their own rules — heated, spring-fed or sun-dependent. Here the operator's on-site report is what counts.

21.0 °C
Measured: September 20, 2026 · continuously updated
💧 Water 21.0° · ☀️ Air 16.8° · high today 21.9°
Temperature trend of recent weeks
Längsee
Photo: C.Stadler/Bwag · CC BY-SA 4.0 · Wikimedia Commons

Water quality

EU classification: excellent

Measurement series & statistics

This measurement series includes 266 data points since August 7, 2026.

Lowest recorded value: 21.0 °C on September 20, 2026 · highest value: 28.1 °C on August 10, 2026.

In September, temperatures have ranged between 21.0 °C and 25.8 °C.

The current value is 2.9 °C below the September average of this series.

Nearby waters

Längsee, St. Georgen, St. Georgen, Sankt Georgen am Längsee · 0.1 km away21.0 °CWörthersee, Strandbad Klagenfurt · 22.2 km away22.1 °CWörthersee, Klagenfurt, Klagenfurt · 22.4 km away22.5 °CMaltschacher See, Briefelsdorf · 22.8 km away20.9 °CKlopeiner See, St. Kanzian, Sankt Kanzian am Klopeiner See · 23.4 km away21.6 °C

Frequently asked questions

Can you swim at Längsee right now?
The current water temperature is 21.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Längsee?
Currently 21.0 °C (updated continuously).

How warm is at Längsee in September?
In September, the water temperature recently averaged 23.9 °C.

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

Open in the BrrChecker app

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