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Alte Donau, Kaiserwasser water temperature

Alte Donau, Kaiserwasser, Wien (Donaustadt) · Lake

The current water temperature at Alte Donau is 24.4 °C (as of August 31, 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.

24.4 °C
Measured: August 31, 2026 · continuously updated
💧 Water 24.4° · ☀️ Air 22.4° · high today 25.4°
Temperature trend of recent weeks
Alte Donau, Kaiserwasser
Photo: Mapper 07 · CC BY-SA 3.0 · Wikimedia Commons

Water quality

EU classification: excellent · Visibility depth: 1.2 m

Nearby waters

Alte Donau, Gänsehäufel West, Wien (Donaustadt) · 0.5 km away24.2 °CNeue Donau, stromab Reichsbrücke, Wien (Donaustadt) · 0.8 km away22.1 °CAlte Donau, Gänsehäufel Ost, Wien (Donaustadt) · 1.0 km away24.1 °CAlte Donau, Gänsehäufel Süd, Wien (Donaustadt) · 1.1 km away24.3 °CAlte Donau, Strandbad, Wien (Donaustadt) · 1.3 km away24.5 °C

Frequently asked questions

Can you swim at Alte Donau right now?
The current water temperature is 24.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Alte Donau?
Currently 24.4 °C (updated continuously).

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

Open in the BrrChecker app

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