Blackwater water temperature

Blackwater, Liscartan · River

The current water temperature at Blackwater is 16.0 °C (as of August 31, 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.

16.0 °C

Measured: August 31, 2026 · continuously updated

💧 Water 16.0° · ☀️ Air 13.7° · high today 18.7°

Temperature trend of recent weeks

Measurement series & statistics

This measurement series includes 1411 data points since July 4, 2026.

Lowest recorded value: 14.3 °C on August 24, 2026 · highest value: 19.3 °C on July 12, 2026.

Nearby waters

Boyne, Blackcastle · 2.8 km away14.7 °C Boyne, Navan Weir · 3.9 km away14.2 °C Moynalty, Fyanstown · 8.8 km away15.4 °C Boyne, Slane Castle · 11.5 km away13.3 °C Boyne, Trim · 12.8 km away12.8 °C

More measuring points: Blackwater

Stramatt17.5 °C Fermoy Bridge16.1 °C Glandalane16.1 °C Castlelands15.9 °C Killavullen15.9 °C Lombardstown Bridge15.6 °C

Frequently asked questions

Can you swim at Blackwater right now?
The current water temperature is 16.0 °C. See live swimming conditions, weather and quality in the BrrChecker app.

How warm is the water at Blackwater?
Currently 16.0 °C (updated continuously).

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