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Chalgrove water level

River gauge, Chalgrove Brook, Oxfordshire, United Kingdom

Directions

Right now

Low for mid-October

Water level

1.04m Steady over the last 24 hours

1.0 1.5 2.0 Highest onrecord 1.93 m Lowest on record 1.00 m

History

History
0.91.01.11.2mOct 11Oct 13Oct 14Oct 16Oct 18Bottom of normal range0.91.01.11.2mOct 11Oct 14Oct 18Bottom of normal range
0.91.01.11.2mSep 18Sep 25Oct 3Oct 10Oct 18Bottom of normal range0.91.01.11.2mSep 18Oct 3Oct 18Bottom of normal range
1.01.31.51.8mOct 2025Jan 2026Apr 2026Jul 2026Oct 2026Top of normal rangeBottom of normal range1.01.31.51.8mOct 2025Apr 2026Oct 2026Top of normal rangeBottom of normal range
1.01.21.4mJanMarMayJulSepNov20261.01.21.4mJanAprJulOct2026

20252026

Water level Normal range (10–90 %) Top of normal rangeBottom of normal range

What this means

At 1.04 m, Chalgrove Brook at Chalgrove is below normal for mid-October.

The median for mid-October is 1.10 m, based on 15 years of readings, so the river level is 0.06 m below typical. On the same day last year the reading was 1.06 m, a difference of −0.02 m.

It has barely moved over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. Over the past 30 days it has moved between 1.01 m and 1.08 m.

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

Compared with 15 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
1.10 m0.06 m below the median for this date
Normal for this date
1.04 m – 1.21 m8 years in 10 fall in this range (15 years of records)
Normal range
0.90 m – 1.75 m
Same day last year
1.06 m−0.02 m
Lowest and highest in 30 days
1.01 m – 1.08 m
Lowest and highest in 12 months
1.02 m – 1.55 m
Highest on record
1.93 mFebruary 7, 2014
Lowest on record
1.00 mMarch 26, 2012

On the river at Chalgrove

Low, clear water makes fish wary, and anglers often do better early and late in the day. For canoeists, shallow riffles mean scraped hulls and the odd portage.

Flood warnings for the area come from the Environment Agency.

Weather at the gauge

Rain in the last 3 days: 1.7 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 13° 6° 1.4 mm, 76% Wind 21 km/h
19 Mon 14° 8° 4.8 mm, 86% Wind 16 km/h
20 Tue 13° 9° 11 mm, 66% Wind 9 km/h
21 Wed 14° 6° 5.4 mm, 47% Wind 24 km/h
22 Thu 14° 5° 0.1 mm, 54% Wind 16 km/h
23 Fri 10° 6° 34 mm, 77% Wind 36 km/h
24 Sat 10° 3° – Wind 25 km/h

Forecast: Open-Meteo

Sunrise 07:34 AM Sunset 06:07 PM Daylight 10 hr, 33 min First quarter 47%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
StadhamptonRiver gauge, River Thame 0.68 m Normal −0.01 m 4.1 km
EwelmeRiver gauge, Ewelme Brook 0.07 m Normal ±0 4.9 km
Benson LockRiver gauge, River Thames 0.01 m Very low ±0 5.8 km
DorchesterRiver gauge, River Thame 0.25 m Very low ±0 6.6 km
Days LockRiver gauge, River Thames 0.20 m Very high +0.01 m 7.7 km
WheatleyRiver gauge, River Thame 3.89 m Normal ±0 9.0 km
Clifton LockRiver gauge, River Thames 0.13 m Normal −0.01 m 9.5 km
Thame BridgeRiver gauge, River Thame 1.08 m Normal +0.06 m 12 km

Questions and answers

Is Chalgrove Brook at Chalgrove higher than last year?

No, it is 0.02 m lower than on the same day last year, when the reading was 1.06 m.

What is a normal level for Chalgrove Brook at Chalgrove in mid-October?

The median for mid-October is 1.10 m. In 8 years out of 10 the reading falls between 1.04 m and 1.21 m, based on 15 years of records.

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 1.04 m on the gauge does not mean the water is that deep.

What is the water level of Chalgrove today?

On 18 Oct 2026, 07:45 BST, the water level was 1.04 m. Steady over the last 24 hours.

Is Chalgrove rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of Chalgrove normal?

Low for mid-October. Compared with 15 years of daily readings for this time of year.

What is the highest water level ever recorded at Chalgrove?

The highest level on record is 1.93 m on February 7, 2014. The lowest is 1.00 m on March 26, 2012.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Environment Agency
Station code
ea:1984TH (Agency page)
Coordinates
51.66328, -1.07527 (WGS84)
Vertical datum
station datum
Update interval
every 15 minutes
Licence
Open Government Licence v3.0. Contains Environment Agency data licensed under the Open Government Licence v3.0

Published series

ParameterLast valueTime (UTC)Quality
Water level 1.04 m 2026-10-18 06:45 Provisional

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How to cite

Environment Agency: Chalgrove (ea:1984TH). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/oxfordshire/chalgrove

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.