Blackwater water temperature
Blackwater, Fermoy Bridge · River
The current water temperature at Blackwater is 12.6 °C (as of October 16, 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 1425 data points since August 17, 2026.
Lowest recorded value: 8.1 °C on August 24, 2026 · highest value: 26.5 °C on August 17, 2026.
In October, temperatures have ranged between 12.2 °C and 14.7 °C.
The current value is 0.7 °C below the October average of this series.
Nearby waters
More measuring points: Blackwater
Frequently asked questions
Can you swim at Blackwater right now?
The current water temperature is 12.6 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Blackwater?
Currently 12.6 °C (updated continuously).
How warm is at Blackwater in October?
In October, the water temperature recently averaged 13.3 °C.
When is the water warmest at Blackwater?
Across the measurement record, August is on average the warmest month (17.0 °C).
