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Sensors on Station 18117 Fermoy Mill

Latest data: 6 Sep 2025, 21:30 (UTC / GMT) staff gauge level 0.817 m. OD level 19.030 m.

Water level for past 5 weeks	Water level for past week.	Water level for past day.	Summary for Water level
Temperature for past 5 weeks	Temperature for past week.	Temperature for past day.	Summary for Temperature
Voltage for past 5 weeks	Voltage for past week.	Voltage for past day.	Summary for Voltage
Ordnance datum for past 5 weeks	Ordnance datum for past week.	Ordnance datum for past day.	Summary for Ordnance datum

Datum

18117 Fermoy Mill 18.213m above Ordnance Datum at Malin Head OSGM15.

Water level and flow records older than 5 weeks

See our newly updated Hydro-Data website https://waterlevel.ie/hydro-data/.