Greenford, Costons Lane water level

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

River gauge, River Brent, Greater London, United Kingdom

Directions

Within the normal range

Water level

0.17m Up 0.03 m over the last 24 hours

Measured 20 Oct 2026, 17:30 BST (31 min ago)

History

7 days 30 days

Water level Top of normal rangeBottom of normal range

What this means

The River Brent at Greenford, Costons Lane is at 0.17 m, within its typical range.

The usual range here runs from 0.13 m to 1.11 m.

It has risen 0.03 m over the past 24 hours. In the last month it has stayed between 0.10 m and 0.34 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: 0.13 m – 1.11 m
Lowest and highest in 30 days: 0.10 m – 0.34 m
Lowest and highest in 12 months: 0.10 m – 0.20 m
Highest on record: 1.75 mSeptember 23, 1992
Lowest on record: 0.10 mJune 28, 2008

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 Brent

The River Brent is a river in west and northwest London, England, and a tributary of the River Thames. 17.9 miles (28.8 km) in length, it rises in the Borough of Barnet and flows in a generally south-west direction before joining the Tideway stretch of the Thames at Brentford.

Weather at the gauge

Rain in the last 3 days: 2.3 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

19 Mon 13° 10° 1.5 mm, 69% Wind 13 km/h

20 Tue 13° 10° 11 mm, 84% Wind 12 km/h

21 Wed 12° 8° 10 mm, 49% Wind 27 km/h

22 Thu 14° 7° 1.5 mm, 78% Wind 17 km/h

23 Fri 14° 8° 12 mm, 80% Wind 37 km/h

24 Sat 12° 8° 2.8 mm, 63% Wind 27 km/h

25 Sun 17° 11° 1.3 mm, 61% Wind 21 km/h

Forecast: Open-Meteo

Sunrise 07:34 AM Sunset 06:00 PM Daylight 10 hr, 26 min Waxing gibbous 70%

Map

Other gauges on the River Brent

Gauge	Level	Compared with normal	24 hours	Distance
HanwellRiver gauge, River Brent	0.88 m	Normal	+0.02 m	2.1 km
BrentfordRiver gauge, River Brent	0.25 m	No reference yet	+0.02 m	5.5 km
Brent, Monks ParkRiver gauge, River Brent	0.18 m	Normal	+0.12 m	6.0 km
Brent CrossRiver gauge, River Brent	0.21 m	High	+0.11 m	10 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Yeading, Brookside RoadRiver gauge, Yeading Brook	0.33 m	High	+0.04 m	3.4 km
Northholt, Yeading EastRiver gauge, Yeading Brook (Eastern Arm)	0.12 m	High	+0.08 m	4.4 km
Harrow, Thistledene AvenueRiver gauge, The Roxbourne	0.07 m	Normal	+0.02 m	4.5 km
Hillingdon, Charville LaneRiver gauge, Yeading Brook	0.58 m	High	+0.04 m	5.3 km
Hillingdon, Gutteridge WoodRiver gauge, Yeading Brook	0.55 m	Very high	+0.14 m	5.7 km
WembleyRiver gauge, Wealdstone Brook	0.24 m	High	+0.17 m	6.0 km
Harrow, Village WayRiver gauge, Yeading Brook	0.16 m	Normal	+0.07 m	6.1 km
Cranford ParkRiver gauge, River Crane	0.10 m	Normal	+0.02 m	6.4 km

Questions and answers

What is the typical range for the River Brent at Greenford, Costons Lane?

The Environment Agency gives a typical range of 0.13 m to 1.11 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 0.17 m on the gauge does not mean the water is that deep.

What is the water level of Greenford, Costons Lane today?

On 20 Oct 2026, 17:30 BST, the water level was 0.17 m. Up 0.03 m over the last 24 hours.

Is Greenford, Costons Lane rising or falling?

Up 0.03 m over the last 24 hours. Up 0.06 m over the last 7 days.

Is the level of Greenford, Costons Lane 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 Greenford, Costons Lane?

The highest level on record is 1.75 m on September 23, 1992. The lowest is 0.10 m on June 28, 2008.

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:3870TH (Agency page)
Coordinates: 51.52737, -0.34487 (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	0.17 m	2026-10-20 16:30	Provisional

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How to cite

Environment Agency: Greenford, Costons Lane (ea:3870TH). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/greater-london/greenford-costons-lane

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