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Pontoon water level

Lake, L. Cullin, Mayo, Ireland

Directions

Within the normal range

Water level

1.09m

0 1 2 3 Highest onrecord 3.35 m

History

Not enough readings for a chart yet. History builds up with every update.

What this means

Pontoon is at 1.09 m, within its typical range.

The usual range here runs from 0.36 m to 2.02 m.

In the last month it has stayed between 1.09 m and 1.11 m.

Many reservoirs reach their low point of the year in autumn, before winter rain and snow start the refill.

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

Key numbers

Normal range
0.36 m – 2.02 m
Highest on record
3.35 m

On the water at Pontoon

Normal levels mean few surprises on the water: ramps in use and the shoreline where you expect it.

Even in summer, lakes here are often colder than they look. Wear a life jacket on the water.

Weather at the gauge

Rain in the last 3 days: 16 mm.

17 Sat 12° 7° – Wind 11 km/h
18 Sun 12° 4° – Wind 14 km/h
19 Mon 11° 7° – Wind 13 km/h
20 Tue 13° 7° 2.2 mm, 47 % Wind 25 km/h
21 Wed 10° 6° 15 mm, 60 % Wind 37 km/h
22 Thu 10° 3° 2.7 mm, 61 % Wind 17 km/h
23 Fri 8° 4° 10 mm, 87 % Wind 37 km/h

Forecast: Open-Meteo

Sunrise 08:08 AM Sunset 06:37 PM Daylight 10h 29m First quarter 35 %

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
CorryoslaLake, L. Conn 0.94 m Normal 1.6 km
PollaghRiver gauge, Moy 2.00 m Normal 5.3 km
Mill Bridge ClydaghRiver gauge, Clydagh 0.40 m Normal 7.8 km
BallylahanRiver gauge, Moy 1.45 m Normal 0.00 m 8.2 km
TurloughLake, Castlebar 0.57 m Normal 10 km
ScarrownageeraghRiver gauge, Gweestion 1.19 m Normal 11 km
Gneeve BridgeRiver gauge, Manulla 1.69 m Normal 13 km
GortnarabyLake, L. Conn 1.64 m Normal 14 km

Questions and answers

How high and low has Pontoon been?

The highest reading on record is 3.35 m.

How often is Pontoon updated?

Several times an hour. New readings from Office of Public Works (waterlevel.ie) appear here as they arrive. Latest: Oct 17, 2026, 01:15 AM GMT+1.

What is the water level of Pontoon today?

On Oct 17, 2026, 01:15 AM GMT+1, the water level was 1.09 m. Normal.

Is the level of Pontoon 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 Pontoon?

The highest level on record is 3.35 m on –.

How often is this data updated?

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

Where does this data come from?

The values come directly from Office of Public Works (waterlevel.ie), the official operator of this gauge, and are published under the CC BY 4.0. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Office of Public Works (waterlevel.ie)
Station code
opw:34081 (Agency page)
Coordinates
53.97767, -9.20808 (WGS84)
Vertical datum
OD Malin Head OSGM15
Gauge zero
8.012 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

ParameterLast valueTime (UTC)Quality
Water level stage 1.09 m 2026-10-17 00:15 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

Office of Public Works (waterlevel.ie): Pontoon (opw:34081). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/ireland/mayo/pontoon

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