Thornton Heath water level
River gauge, Norbury Brook, Greater London, United Kingdom
Right now
Normal for mid-October
Water level
History
20252026
What this means
The gauge at Thornton Heath reads 1.00 m, a normal level for mid-October.
The median for mid-October is 0.98 m, based on 21 years of readings, so the river level is 0.01 m above typical. On the same day last year the reading was 0.97 m, a difference of +0.03 m.
The water is rising: up 0.01 m over the past 24 hours. Over the past 30 days it has moved between 0.97 m and 1.33 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
- 0.98 m0.01 m above the median for this date
- Normal for this date
- 0.96 m – 1.11 m8 years in 10 fall in this range (21 years of records)
- Normal range
- 0.96 m – 2.34 m
- Same day last year
- 0.97 m+0.03 m
- Lowest and highest in 30 days
- 0.97 m – 1.33 m
- Lowest and highest in 12 months
- 0.95 m – 1.31 m
- Highest on record
- 2.53 mJuly 20, 2007
- Lowest on record
- 0.93 mMay 1, 2003
On the river at Thornton Heath
A level in the typical range is usually good news for both anglers and canoeists, but conditions can change quickly after rain in the hills.
Flood warnings for the area come from the Environment Agency.
Weather at the gauge
Rain in the last 3 days: 2.8 mm. Rain that falls upstream can take hours or days to show up at a river gauge.
Forecast: Open-Meteo
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Waddon PondsRiver gauge, River Wandle | −0.11 m | Very low | −0.01 m | 3.1 km |
| Beddington ParkRiver gauge, River Wandle | 0.24 m | Normal | ±0 | 3.7 km |
| Abercairn RoadRiver gauge, River Graveney | 0.88 m | Low | +0.02 m | 4.0 km |
| Upper Elmers EndRiver gauge, St James Stream | 0.37 m | High | +0.01 m | 4.2 km |
| HackbridgeRiver gauge, River Wandle | 1.12 m | Lowest on record | ±0 | 4.8 km |
| BeckenhamRiver gauge, The Beck | 0.48 m | Normal | +0.02 m | 5.2 km |
| Carshalton PondsRiver gauge, River Wandle | 0.07 m | Low | ±0 | 5.5 km |
| Longley RoadRiver gauge, River Graveney | 0.07 m | Normal | +0.01 m | 6.1 km |
Questions and answers
Is Norbury Brook at Thornton Heath higher than last year?
Yes, it is 0.03 m higher than on the same day last year, when the reading was 0.97 m.
What is a normal level for Norbury Brook at Thornton Heath in mid-October?
The median for mid-October is 0.98 m. In 8 years out of 10 the reading falls between 0.96 m and 1.11 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 1.00 m on the gauge does not mean the water is that deep.
What is the water level of Thornton Heath today?
On 19 Oct 2026, 15:15 BST, the water level was 1.00 m. Up 0.01 m over the last 24 hours.
Is Thornton Heath rising or falling?
Up 0.01 m over the last 24 hours. Up 0.01 m over the last 7 days.
Is the level of Thornton Heath normal?
Normal for mid-October. Compared with 21 years of daily readings for this time of year.
What is the highest water level ever recorded at Thornton Heath?
The highest level on record is 2.53 m on July 20, 2007. The lowest is 0.93 m on May 1, 2003.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- Environment Agency
- Station code
ea:4182TH(Agency page)- Coordinates
51.39476, -0.09730(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 | 1.00 m | 2026-10-19 14:15 | Provisional |
Download
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How to cite
Environment Agency: Thornton Heath (ea:4182TH). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/greater-london/thornton-heath
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