Aa water temperature
Aa, Rustenhof · River
The current water temperature at Aa is 12.1 °C (as of October 16, 2026, source: LANUV NRW).
A river can change temperature within hours — snowmelt, rain or power-plant operations show up immediately. That is why the measured value counts here, not an estimate.
Measurement series & statistics
This measurement series includes 465 data points since August 17, 2026.
Lowest recorded value: 10.7 °C on October 13, 2026 · highest value: 18.3 °C on August 28, 2026.
In October, temperatures have ranged between 10.7 °C and 16.1 °C.
The current value is 1.5 °C below the October average of this series.
Nearby waters
Frequently asked questions
Can you swim at Aa right now?
The current water temperature is 12.1 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Aa?
Currently 12.1 °C (updated continuously).
How warm is at Aa in October?
In October, the water temperature recently averaged 13.6 °C.
When is the water warmest at Aa?
Across the measurement record, August is on average the warmest month (16.7 °C).
