BrrChecker

Blackwater water temperature

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.

16.3 °C
Measured: September 7, 2026 · continuously updated
Blackwater
Photo: David P Howard · CC BY-SA 2.0 · Wikimedia Commons

Nearby waters

More measuring points: Blackwater

Frequently asked questions

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).

Open in the BrrChecker app

← All waters · Warmest rivers today · Water temperature in Ireland