Lake Constance water temperature

Lake Constance, Strandbad Mettnau, Radolfzell · Lido

The current water temperature at Lake Constance is 23.0 °C (as of September 1, 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.

23.0 °C

Measured: September 1, 2026 · continuously updated

💧 Water 23.0° · ☀️ Air 15.6° · high today 24.0°

Temperature trend of recent weeks

Lake Constance — Photo: Stefan-Xp · CC BY-SA 3.0 · Wikimedia Commons

Water quality

EU classification: excellent

Measurement series & statistics

This measurement series includes 498 data points since July 3, 2026.

Lowest recorded value: 23.0 °C on July 22, 2026 · highest value: 28.0 °C on July 3, 2026.

Nearby waters

Lake Constance, Strandbad Iznang · 2.6 km away23.0 °C Lake Constance, Strandbad Moos · 3.7 km away23.0 °C Lake Constance, Strandbad Horn, Gaienhofen · 4.7 km away23.0 °C Lake Constance, Strandbad Reichenau · 5.6 km away23.0 °C Lake Constance, Strandbad Allensbach · 6.0 km away23.0 °C

More measuring points: Lake Constance

Alte Badi Horn23.5 °C Aquastaad, Immenstaad23.5 °C Badi Altnau23.5 °C Badi Güttingen23.5 °C Badi Uttwil23.5 °C Bregenz (Bodensee)23.5 °C

Frequently asked questions

Can you swim at Lake Constance right now?
The current water temperature is 23.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Lake Constance?
Currently 23.0 °C (updated continuously).

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

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