Neptun water temperature
Neptun, Neptun – Treppe · Lake
The current water temperature at Neptun is 28.9 °C (as of June 30, 2026, source: Badegewässer NRW (LANUK)).
28.9 °C
Measured: June 30, 2026 · continuously updated
Water quality
EU classification: excellent · Visibility depth: 1.5 mFrequently asked questions
Can you swim at Neptun right now?
The current water temperature is 28.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Neptun?
Currently 28.9 °C (updated continuously).
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