Ballydahin water level

Name: Ballydahin water level (Office of Public Works (waterlevel.ie))
Creator: Office of Public Works (waterlevel.ie)
License: https://creativecommons.org/licenses/by/4.0/

River gauge, Blackwater (Munster), Cork, Ireland

Directions

Within the normal range

Water level

0.72m Down 0.06 m over the last 24 hours

Measured 17 Oct 2026, 21:45 GMT+1 (10 min ago)

History

7 days

Water level Top of normal rangeBottom of normal range

What this means

The gauge at Ballydahin reads 0.72 m, a normal level.

The usual range here runs from 0.54 m to 1.94 m.

The level is falling, down 0.06 m over the past 24 hours. Over the past 30 days it has moved between 0.72 m and 0.80 m.

Autumn rain usually starts to lift rivers again after the summer low.

Compared with the normal range the agency publishes for this gauge. How to read levels

Key numbers

Normal range: 0.54 m – 1.94 m
Highest on record: 4.46 m

On the river at Ballydahin

A level in the typical range is usually good news for both anglers and canoeists, but conditions can change quickly after rain in the hills.

Flood warnings for the area come from the OPW and Met Éireann.

Weather at the gauge

Rain in the last 3 days: 14 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 13° 3° – Wind 8 km/h

18 Sun 13° 4° – Wind 5 km/h

19 Mon 12° 3° – Wind 12 km/h

20 Tue 14° 7° 7.7 mm, 63% Wind 30 km/h

21 Wed 11° 7° 1.3 mm, 43% Wind 25 km/h

22 Thu 13° 7° 0.4 mm, 78% Wind 17 km/h

23 Fri 10° 6° 3.8 mm, 80% Wind 30 km/h

Forecast: Open-Meteo

Sunrise 08:03 AM Sunset 06:38 PM Daylight 10 hr, 35 min First quarter 43%

Map

Other gauges on the Blackwater (Munster)

Gauge	Level	Compared with normal	24 hours	Distance
Mallow Railway BridgeRiver gauge, Blackwater (Munster)	0.70 m	Normal	−0.06 m	0.2 km
Mallow Town Bridge U/SRiver gauge, Blackwater (Munster)	1.34 m	Normal	−0.03 m	0.9 km
Mallow Town Bridge D/SRiver gauge, Blackwater (Munster)	1.21 m	Normal	−0.05 m	0.9 km
CastlelandsRiver gauge, Blackwater (Munster)	0.90 m	Normal	−0.09 m	2.2 km
Lombardstown BridgeRiver gauge, Blackwater (Munster)	0.25 m	Normal	−0.05 m	8.9 km
KillavullenRiver gauge, Blackwater (Munster)	1.33 m	Normal	−0.06 m	9.7 km
Fermoy U/S RowingRiver gauge, Blackwater (Munster)	−0.37 m	Normal	−0.12 m	26 km
Fermoy Bridge U/SRiver gauge, Blackwater (Munster)	−0.34 m	Normal	−0.13 m	26 km
Fermoy Bridge D/SRiver gauge, Blackwater (Munster)	0.18 m	Normal	−0.07 m	26 km
Keale BridgeRiver gauge, Blackwater (Munster)	0.47 m	Normal	−0.06 m	26 km
Fermoy MillRiver gauge, Blackwater (Munster)	0.86 m	Normal	−0.07 m	26 km
GlandalaneRiver gauge, Blackwater (Munster)	1.12 m	Normal	−0.03 m	30 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
ClashmorganRiver gauge, Lyre	0.60 m	Normal	−0.01 m	5.7 km
Jordans BridgeRiver gauge, Clydagh (Cork)	0.44 m	Normal	−0.01 m	6.3 km
Castletownroche WeirRiver gauge, Awbeg	0.53 m	Normal	±0	14 km
Fr Murphy's BridgeRiver gauge, Glen	0.42 m	Normal	−0.01 m	16 km

Questions and answers

What is the typical range for the Blackwater (Munster) at Ballydahin?

The Office of Public Works (waterlevel.ie) gives a typical range of 0.54 m to 1.94 m for this gauge.

Is the river level the same as the depth of the water?

No. The reading is measured from a fixed zero mark at the gauge, so 0.72 m on the gauge does not mean the water is that deep.

What is the water level of Ballydahin today?

On 17 Oct 2026, 21:45 GMT+1, the water level was 0.72 m. Down 0.06 m over the last 24 hours.

Is Ballydahin rising or falling?

Down 0.06 m over the last 24 hours.

Is the level of Ballydahin normal?

Within the normal range. Compared with the normal range the agency publishes for this gauge.

What is the highest water level ever recorded at Ballydahin?

The highest level on record is 4.46 m.

How often is this data updated?

The Office of Public Works (waterlevel.ie) publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: Office of Public Works (waterlevel.ie)
Station code: opw:18119 (Agency page)
Coordinates: 52.13139, -8.65421 (WGS84)
Vertical datum: OD Malin Head OSGM15
Gauge zero: 42.413 m
Update interval: every 15 minutes
Licence: CC BY 4.0. Contains Irish Public Sector Information licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence (source waterlevel.ie - provided by the Office of Public Works)

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	0.72 m	2026-10-17 20:45	Provisional

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How to cite

Office of Public Works (waterlevel.ie): Ballydahin (opw:18119). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/ireland/cork/ballydahin

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer