Castle Bytham water level

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

River gauge, River Tham, Lincolnshire, United Kingdom

Directions

Within the normal range

Water level

0.26m Steady over the last 24 hours

Measured 19 Oct 2026, 00:30 BST (44 min ago)

History

7 days 30 days

Water level Top of normal rangeBottom of normal range

What this means

The River Tham at Castle Bytham is at 0.26 m, within its typical range.

The usual range here runs from 0.01 m to 0.99 m.

It has barely moved over the past 24 hours. In the last month it has stayed between 0.14 m and 0.26 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: 0.01 m – 0.99 m
Lowest and highest in 30 days: 0.14 m – 0.26 m
Lowest and highest in 12 months: 0.21 m – 0.26 m
Highest on record: 1.75 mJanuary 2, 2024
Lowest on record: 0.00 mDecember 7, 2002

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 Tham

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: 3.3 mm. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 12° 7° 0.9 mm, 57% Wind 26 km/h

19 Mon 13° 9° 11 mm, 100% Wind 22 km/h

20 Tue 12° 10° 15 mm, 69% Wind 13 km/h

21 Wed 13° 7° 6.8 mm, 47% Wind 30 km/h

22 Thu 10° 4° 0.3 mm, 49% Wind 19 km/h

23 Fri 13° 6° 26 mm, 75% Wind 40 km/h

24 Sat 12° 5° 2.8 mm, 36% Wind 28 km/h

Forecast: Open-Meteo

Sunrise 07:35 AM Sunset 06:00 PM Daylight 10 hr, 25 min First quarter 54%

Map

Other gauges on the River Tham

Gauge	Level	Compared with normal	24 hours	Distance
Little BythamRiver gauge, River Tham	0.03 m	Normal	±0	2.3 km

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
North WithamRiver gauge, River Witham	0.12 m	Normal	±0	6.9 km
Burton CogglesRiver gauge, West Glen River	−0.12 m	Lowest on record	±0	7.5 km
ColsterworthRiver gauge, River Witham	0.07 m	Low	±0	8.5 km
IrnhamRiver gauge, East Glen River	0.01 m	Very low	±0	9.9 km
Shillingthorpe GS WitsRiver gauge	0.05 m	Normal	±0	11 km
Kates BridgeRiver gauge, River Glen	0.04 m	Low	+0.01 m	12 km
Hudds MillRiver gauge, River Welland	0.13 m	Normal	±0	12 km
TallingtonRiver gauge, River Welland	0.40 m	Normal	±0	15 km

Questions and answers

What is the typical range for the River Tham at Castle Bytham?

The Environment Agency gives a typical range of 0.01 m to 0.99 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 0.26 m on the gauge does not mean the water is that deep.

What is the water level of Castle Bytham today?

On 19 Oct 2026, 00:30 BST, the water level was 0.26 m. Steady over the last 24 hours.

Is Castle Bytham rising or falling?

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

Is the level of Castle Bytham 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 Castle Bytham?

The highest level on record is 1.75 m on January 2, 2024. The lowest is 0.00 m on December 7, 2002.

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:E4482 (Agency page)
Coordinates: 52.75594, -0.53451 (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	0.26 m	2026-10-18 23:30	Provisional

Download

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How to cite

Environment Agency: Castle Bytham (ea:E4482). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/lincolnshire/castle-bytham

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