Jamestown Weir D/S water level

Name: Jamestown Weir D/S 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, Shannon, Roscommon, Ireland

Directions

Within the normal range

Water level

1.02m Up 0.05 m over the last 24 hours

Measured 18 Oct 2026, 00:00 GMT+1 (18 hours ago)

History

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

What this means

The gauge at Jamestown Weir D/S reads 1.02 m, a normal level.

The usual range here runs from 0.15 m to 1.71 m.

The water is rising: up 0.05 m over the past 24 hours. Over the past 30 days it has moved between 0.95 m and 1.03 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: 0.15 m – 1.71 m
Highest on record: 2.04 m

On the river at Jamestown Weir D/S

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.

About the Shannon

The River Shannon is the major river on the island of Ireland, and at 360 km in length, is the longest river in the British Isles. It drains the Shannon River Basin, which has an area of 16,900 km2 (6,525 sq mi), – approximately one fifth of the area of Ireland.

Weather at the gauge

Rain in the last 3 days: 11 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 11° -2° – Wind 9 km/h

19 Mon 11° -3° – Wind 13 km/h

20 Tue 13° 5° 2.8 mm, 65% Wind 24 km/h

21 Wed 10° 4° 0.8 mm, 71% Wind 16 km/h

22 Thu 10° 0° 4.9 mm, 67% Wind 15 km/h

23 Fri 10° 6° 4.8 mm, 75% Wind 27 km/h

24 Sat 12° 7° 3.0 mm, 67% Wind 21 km/h

Forecast: Open-Meteo

Sunrise 08:06 AM Sunset 06:30 PM Daylight 10 hr, 25 min First quarter 51%

Map

Other gauges on the Shannon

Gauge	Level	Compared with normal	24 hours	Distance
Jamestown Weir U/SRiver gauge, Shannon	1.58 m	Normal	−0.11 m	0.0 km
JamestownRiver gauge, Shannon	1.96 m	Normal	−0.03 m	0.6 km
DrumsnaRiver gauge, Shannon	1.07 m	Normal	±0	1.6 km
Carrick-On-ShannonRiver gauge, Shannon	1.60 m	Normal	−0.02 m	4.5 km
Athlone Weir U/SRiver gauge, Shannon	2.55 m	Normal	+0.02 m	57 km
AthloneRiver gauge, Shannon	2.66 m	Normal	+0.08 m	57 km
ShannonbridgeRiver gauge, Shannon	2.59 m	Normal	+0.08 m	72 km
W.O.P.S Rail BridgeRiver gauge, Shannon	2.49 m	Normal	+0.12 m	73 km
Derryholmes u/sRiver gauge, Shannon	2.65 m	Normal	+0.06 m	76 km
Derryholmes d/sRiver gauge, Shannon	2.59 m	Normal	+0.05 m	76 km
BanagherRiver gauge, Shannon	2.19 m	Normal	+0.03 m	82 km
Meelick WeirRiver gauge, Shannon	0.77 m	Normal	+0.10 m	84 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
CorrascoffyEstuary gauge, Eslin	0.66 m	Normal	−0.05 m	8.7 km
Lough RinnLake	1.80 m	Normal	±0	12 km
Blackrock LockLake, L. Allen	2.33 m	Normal	−0.03 m	13 km
RiverstownRiver gauge, Cloone	0.70 m	Normal	−0.09 m	14 km
AghacashlaunRiver gauge	0.29 m	Normal	−0.05 m	15 km
Johnston's BridgeRiver gauge, Rinn	0.92 m	Normal	−0.05 m	16 km

Questions and answers

What is the typical range for the Shannon at Jamestown Weir D/S?

The Office of Public Works (waterlevel.ie) gives a typical range of 0.15 m to 1.71 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 1.02 m on the gauge does not mean the water is that deep.

What is the water level of Jamestown Weir D/S today?

On 18 Oct 2026, 00:00 GMT+1, the water level was 1.02 m. Up 0.05 m over the last 24 hours.

Is Jamestown Weir D/S rising or falling?

Up 0.05 m over the last 24 hours.

Is the level of Jamestown Weir D/S 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 Jamestown Weir D/S?

The highest level on record is 2.04 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:26401 (Agency page)
Coordinates: 53.92888, -8.03074 (WGS84)
Vertical datum: OD Malin Head OSGM15
Gauge zero: 38.372 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	1.02 m	2026-10-17 23:00	Provisional

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How to cite

Office of Public Works (waterlevel.ie): Jamestown Weir D/S (opw:26401). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/ireland/roscommon/jamestown-weir-d-s

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