Blackwater, Castlelands · River
The current water temperature at Blackwater is 16.3 °C (as of September 7, 2026, source: official monitoring networks).
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.
Can you swim at Blackwater right now?
The current water temperature is 16.3 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Blackwater?
Currently 16.3 °C (updated continuously).