Untere Alte Donau water temperature

Untere Alte Donau, Wien (Donaustadt) · Lake

The current water temperature at Untere Alte Donau is 25.3 °C (as of August 17, 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.

25.3 °C

Measured: August 17, 2026 · continuously updated

💧 Water 25.3° · ☀️ Air 18.6° · high today 26.9°

Temperature trend of recent weeks

Untere Alte Donau — Photo: Robot8A · CC BY-SA 4.0 · Wikimedia Commons

Water quality

EU classification: excellent · Visibility depth: 3.4 m

Nearby waters

Neue Donau, stromauf Wasserskilift, Wien (Donaustadt) · 0.5 km away22.7 °C Alte Donau, Gänsehäufel Süd, Wien (Donaustadt) · 0.7 km away25.1 °C Alte Donau, Gänsehäufel Ost, Wien (Donaustadt) · 1.0 km away25.1 °C Alte Donau, Gänsehäufel West, Wien (Donaustadt) · 1.5 km away25.4 °C Neue Donau, stromab Reichsbrücke, Wien (Donaustadt) · 1.6 km away22.5 °C

Frequently asked questions

Can you swim at Untere Alte Donau right now?
The current water temperature is 25.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Untere Alte Donau?
Currently 25.3 °C (updated continuously).

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

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