Hambleden Lock water level

Name: Hambleden Lock water level (Environment Agency)
Creator: Environment Agency
License: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

River gauge, River Thames, Buckinghamshire, United Kingdom

Directions

Within the normal range

Water level

0.09m Steady over the last 24 hours

Measured 18 Oct 2026, 15:45 BST (29 min ago)

History

7 days 30 days

Water level Top of normal rangeBottom of normal range

What this means

The River Thames at Hambleden Lock is at 0.09 m, within its typical range.

The usual range here runs from 0.06 m to 0.36 m.

It has barely moved over the past 24 hours. In the last month it has stayed between 0.04 m and 0.11 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: 0.06 m – 0.36 m
Lowest and highest in 30 days: 0.04 m – 0.11 m
Lowest and highest in 12 months: 0.08 m – 0.10 m
Highest on record: 0.54 mFebruary 12, 2026
Lowest on record: −0.05 mNovember 28, 2025

Fishing and paddling

Paddlers and anglers can expect the river much as they know it, though a heavy shower upstream can change that within hours.

Flood alerts and warnings come from the Environment Agency.

About the River Thames

The River Thames, or simply the Thames, known alternatively in parts as the River Isis, is a river that flows through southern England including London. At 215 miles (346 km), it is the longest river entirely in England and the second-longest in the United Kingdom, after the River Severn.

Weather at the gauge

Rain in the last 3 days: 1.9 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 12° 6° 0.5 mm, 91% Wind 19 km/h

19 Mon 14° 8° 4.1 mm, 90% Wind 19 km/h

20 Tue 13° 10° 12 mm, 76% Wind 11 km/h

21 Wed 12° 6° 13 mm, 53% Wind 34 km/h

22 Thu 12° 4° 1.3 mm, 71% Wind 15 km/h

23 Fri 13° 7° 28 mm, 85% Wind 42 km/h

24 Sat 13° 6° 2.8 mm, 45% Wind 26 km/h

Forecast: Open-Meteo

Sunrise 07:33 AM Sunset 06:06 PM Daylight 10 hr, 33 min First quarter 50%

Map

Other gauges on the River Thames

Gauge	Level	Compared with normal	24 hours	Distance
Marsh LockRiver gauge, River Thames	0.23 m	Normal	±0	3.6 km
Hurley LockRiver gauge, River Thames	0.05 m	Low	±0	4.6 km
Temple LockRiver gauge, River Thames	0.02 m	Low	±0	5.6 km
Shiplake LockRiver gauge, River Thames	0.04 m	Low	−0.02 m	6.6 km
Marlow LockRiver gauge, River Thames	0.05 m	Low	−0.01 m	7.2 km
Sonning LockRiver gauge, River Thames	0.24 m	Very high	±0	10 km
Cookham LockRiver gauge, River Thames	0.08 m	Normal	+0.02 m	12 km
Boulters LockRiver gauge, River Thames	0.14 m	Low	+0.01 m	12 km
MaidenheadRiver gauge, River Thames	2.21 m	Very low	+0.02 m	12 km
Caversham LockRiver gauge, River Thames	0.13 m	Very low	−0.01 m	13 km
ReadingRiver gauge, River Thames	6.69 m	Normal	+0.01 m	13 km
Bray LockRiver gauge, River Thames	0.18 m	Low	−0.01 m	14 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Stonor EstateGroundwater well	72.30 m	Normal	−0.06 m	5.8 km
TwyfordRiver gauge, River Loddon	0.97 m	Normal	−0.01 m	8.4 km
Ray FarmGroundwater well	44.44 m	Normal	±0	10 km
Raymill RoadRiver gauge, Maidenhead Ditch	−0.02 m	Lowest on record	±0	11 km

Questions and answers

What is the typical range for the River Thames at Hambleden Lock?

The Environment Agency gives a typical range of 0.06 m to 0.36 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 0.09 m on the gauge does not mean the water is that deep.

What is the water level of Hambleden Lock today?

On 18 Oct 2026, 15:45 BST, the water level was 0.09 m. Steady over the last 24 hours.

Is Hambleden Lock rising or falling?

Steady over the last 24 hours. Down 0.01 m over the last 7 days.

Is the level of Hambleden Lock 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 Hambleden Lock?

The highest level on record is 0.54 m on February 12, 2026. The lowest is −0.05 m on November 28, 2025.

How often is this data updated?

The Environment Agency 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: Environment Agency
Station code: ea:2496TH (Agency page)
Coordinates: 51.55993, -0.87331 (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

Parameter	Last value	Time (UTC)	Quality
Water level	0.09 m	2026-10-18 14:45	Provisional

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<iframe src="https://nivelmap.com/embed/3885?lang=en" width="360" height="230" style="border:0;max-width:100%" loading="lazy" title="Hambleden Lock water level"></iframe>

How to cite

Environment Agency: Hambleden Lock (ea:2496TH). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/buckinghamshire/hambleden-lock

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