Siethener See water temperature

Siethener See, Siethen, Strand Potsdamer Chauss... · Lake

The current water temperature at Siethener See is 21.7 °C (as of August 26, 2026, source: Badestellen Brandenburg (LAVG)).

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

21.7 °C

Measured: August 26, 2026 · continuously updated

💧 Water 21.7° · ☀️ Air 14.8° · high today 20.2°

Temperature trend of recent weeks

Siethener See — Photo: Rolf Dietrich Brecher from Germany · CC BY-SA 2.0 · Wikimedia Commons

Water quality

EU classification: excellent · Visibility depth: 1.3 m

Nearby waters

Kliestower See, Kliestow, Strand · 12.2 km away18.5 °C Teltowkanal, Teltow-Werft · 12.7 km away23.0 °C Griebnitzkanal, Alsenbrücke · 13.7 km away23.1 °C Rangsdorfer See, Rangsdorf, Strand am Rangsdorfer... · 13.9 km away19.8 °C Mahlower See, Mahlow, Strand · 14.0 km away21.3 °C

Frequently asked questions

Can you swim at Siethener See right now?
The current water temperature is 21.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Siethener See?
Currently 21.7 °C (updated continuously).

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

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