Alte Donau, Kaiserwasser, Wien (Donaustadt) · Lake
The current water temperature at Alte Donau is 25.0 °C (as of July 6, 2026, source: AGES).
25.0 °C
Measured: July 6, 2026 · continuously updated
Temperature trend of recent weeks
Water quality
EU classification: excellent · Visibility depth: 1.2 m
Frequently asked questions
Can you swim at Alte Donau right now? The current water temperature is 25.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Alte Donau? Currently 25.0 °C (updated continuously).