Blackwater water temperature
Blackwater, Ballyduff · River
The current water temperature at Blackwater is 13.9 °C (as of September 20, 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.
Measurement series & statistics
This measurement series includes 1299 data points since July 22, 2026.
Lowest recorded value: 12.4 °C on August 24, 2026 · highest value: 14.3 °C on August 28, 2026.
In September, temperatures have ranged between 13.7 °C and 14.3 °C.
Nearby waters
More measuring points: Blackwater
Frequently asked questions
Can you swim at Blackwater right now?
The current water temperature is 13.9 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Blackwater?
Currently 13.9 °C (updated continuously).
How warm is at Blackwater in September?
In September, the water temperature recently averaged 13.9 °C.
When is the water warmest at Blackwater?
Across the measurement record, September is on average the warmest month (13.9 °C).
