Tolka water temperature
Tolka, Clonee Weir · River
The current water temperature at Tolka is 11.4 °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 1429 data points since August 17, 2026.
Lowest recorded value: 9.8 °C on October 8, 2026 · highest value: 18.6 °C on September 14, 2026.
In October, temperatures have ranged between 9.8 °C and 15.2 °C.
The current value is 1.2 °C below the October average of this series.
Nearby waters
Frequently asked questions
Can you swim at Tolka right now?
The current water temperature is 11.4 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Tolka?
Currently 11.4 °C (updated continuously).
How warm is at Tolka in October?
In October, the water temperature recently averaged 12.6 °C.
When is the water warmest at Tolka?
Across the measurement record, August is on average the warmest month (15.4 °C).
