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Bagshot water level

River gauge, Windle Brook, Surrey, United Kingdom

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Right now

High for mid-October

Water level

0.66m Steady over the last 24 hours

0.5 1.0 1.5 Highest onrecord 1.65 m Lowest on record 0.40 m

History

History
0.40.50.60.7mOct 10Oct 12Oct 14Oct 15Oct 17Bottom of normal range0.40.50.60.7mOct 10Oct 14Oct 17Bottom of normal range
0.40.60.8mSep 17Sep 25Oct 2Oct 10Oct 17Bottom of normal range0.40.60.8mSep 17Oct 2Oct 17Bottom of normal range
0.40.60.8mOct 2025Jan 2026Apr 2026Jul 2026Oct 2026Bottom of normal range0.40.60.8mOct 2025Apr 2026Oct 2026Bottom of normal range
0.50.60.70.8mJanMarMayJulSepNov20260.50.60.70.8mJanAprJulOct2026

20252026

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

What this means

The gauge at Bagshot shows 0.66 m, above normal for mid-October.

The median for mid-October is 0.60 m, based on 21 years of readings, so the river level is 0.06 m above typical. On the same day last year the reading was 0.57 m, a difference of +0.09 m.

It has barely moved over the past 24 hours. Over the past 30 days it has moved between 0.62 m and 0.78 m.

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

Compared with 21 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
0.60 m0.06 m above the median for this date
Normal for this date
0.54 m – 0.70 m8 years in 10 fall in this range (21 years of records)
Normal range
0.40 m – 1.35 m
Same day last year
0.57 m+0.09 m
Lowest and highest in 30 days
0.62 m – 0.78 m
Lowest and highest in 12 months
0.57 m – 0.80 m
Highest on record
1.65 mJuly 20, 2007
Lowest on record
0.40 mSeptember 11, 2009

On the river at Bagshot

High, coloured water is hard work for anglers and risky for canoeists, with stronger currents and debris around bridges and weirs.

Flood warnings for the area come from the Environment Agency.

Weather at the gauge

Rain in the last 3 days: 4.2 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 14° 5° 0.1 mm Wind 18 km/h
18 Sun 13° 6° 2.4 mm, 39% Wind 19 km/h
19 Mon 14° 7° 0.3 mm, 47% Wind 11 km/h
20 Tue 13° 11° 2.9 mm, 53% Wind 11 km/h
21 Wed 13° 8° 0.9 mm, 49% Wind 19 km/h
22 Thu 14° 6° 1.9 mm, 56% Wind 18 km/h
23 Fri 13° 7° 15 mm, 78% Wind 35 km/h

Forecast: Open-Meteo

Sunrise 07:30 AM Sunset 06:08 PM Daylight 10 hr, 38 min First quarter 41%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Millbourne BridgeRiver gauge, Mill Bourne 0.91 m Very low −0.01 m 6.2 km
Grants BridgeRiver gauge, Addlestone Bourne 0.34 m Normal ±0 6.2 km
Blackwater BridgeRiver gauge, River Blackwater 1.34 m High ±0 6.9 km
FarnboroughRiver gauge, River Blackwater 0.61 m Low −0.05 m 7.9 km
Mayfield RoadRiver gauge, Cove Brook 0.89 m Normal −0.17 m 8.4 km
WarfieldRiver gauge, The Cut 1.91 m High −0.06 m 9.2 km
Cove Hazel AvenueRiver gauge, Cove Brook 0.76 m Normal −0.09 m 9.8 km
Trumps GreenRiver gauge, Chertsey Bourne 0.76 m Normal ±0 9.8 km

Questions and answers

Is Windle Brook at Bagshot higher than last year?

Yes, it is 0.09 m higher than on the same day last year, when the reading was 0.57 m.

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

The median for mid-October is 0.60 m. In 8 years out of 10 the reading falls between 0.54 m and 0.70 m, based on 21 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 0.66 m on the gauge does not mean the water is that deep.

What is the water level of Bagshot today?

On 17 Oct 2026, 13:00 BST, the water level was 0.66 m. Steady over the last 24 hours.

Is Bagshot rising or falling?

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

Is the level of Bagshot normal?

High for mid-October. Compared with 21 years of daily readings for this time of year.

What is the highest water level ever recorded at Bagshot?

The highest level on record is 1.65 m on July 20, 2007. The lowest is 0.40 m on September 11, 2009.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
Environment Agency
Station code
ea:2941TH (Agency page)
Coordinates
51.36152, -0.68930 (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 0.66 m 2026-10-17 12:00 Provisional

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How to cite

Environment Agency: Bagshot (ea:2941TH). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/surrey/bagshot

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.