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SwedenLittle Hadham water level
River gauge, River Ash, Hertfordshire, United Kingdom
Right now
High for mid-October
Water level
History
20252026
What this means
High water at Little Hadham: the latest reading is 0.02 m, above normal for mid-October.
That puts it 0.03 m above the median of −0.01 m for mid-October, based on 20 years of readings. A year ago it stood at 0.01 m (+0.01 m).
The level has held steady over the past 24 hours. The 30-day range is 0.02 m – 0.03 m.
Autumn rain usually starts to lift rivers again after the summer low.
Compared with 20 years of daily readings for this time of year. How to read levels
Key numbers
- Median for this date
- −0.01 m0.03 m above the median for this date
- Normal for this date
- −0.08 m – 0.05 m8 years in 10 fall in this range (20 years of records)
- Normal range
- −0.10 m – 0.82 m
- Same day last year
- 0.01 m+0.01 m
- Lowest and highest in 30 days
- 0.02 m – 0.03 m
- Lowest and highest in 12 months
- 0.01 m – 0.34 m
- Highest on record
- 1.97 mOctober 21, 2001
- Lowest on record
- −0.17 mAugust 18, 2007
For anglers and canoeists
A river in spate is no place for beginners. Weirs form strong towbacks, and trees in the water become strainers.
Many angling and canoe clubs check gauges like this one before heading out.
About the River Ash
The River Ash is a small, shallow river in Surrey, England. Its course of 10 kilometres (6.2 mi) is just outside Greater London. Work has been carried out to re-align, clear and build up a small, Littleton head of water and create two backwaters. One backwater dates to the medieval period; the other to the 1990s. It flows as one of the six distributaries of the River Colne from the south of Staines Moor immediately south of the Staines Bypass eastwards through the rest of the borough of Spelthorne before meeting the River Thames.
Text and image from Wikipedia and Wikimedia Commons, licensed under CC BY-SA.
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.
Forecast: Open-Meteo
Map
Other gauges on the River Ash
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Furneux PelhamRiver gauge, River Ash | 0.11 m | Very low | −0.02 m | 5.2 km |
| MardockRiver gauge, River Ash | 0.10 m | Normal | ±0 | 9.1 km |
| Staines AshRiver gauge, River Ash | 0.11 m | Very high | ±0 | 65 km |
| Knowle GreenRiver gauge, River Ash | 0.52 m | Normal | ±0 | 65 km |
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Bishops Stortford, Grange PaddocksRiver gauge, River Stort | −0.26 m | Lowest on record | ±0 | 4.8 km |
| BraughingRiver gauge, River Quin | 0.09 m | Normal | ±0 | 5.3 km |
| Stansted Mountfitchet, Gypsy LaneRiver gauge, Stansted Brook | 0.06 m | Low | ±0 | 6.6 km |
| SawbridgeworthRiver gauge, River Stort | 1.10 m | Low | −0.01 m | 9.2 km |
| WadesmillRiver gauge, River Rib | 0.19 m | Normal | ±0 | 9.6 km |
| ClaveringRiver gauge, River Stort | 0.02 m | Very low | ±0 | 9.8 km |
| BuntingfordRiver gauge, River Rib | 0.05 m | Lowest on record | ±0 | 10 km |
| Harlow MillRiver gauge, River Stort | 0.92 m | Normal | −0.02 m | 10 km |
Questions and answers
How does the River Ash at Little Hadham compare with last year?
It is 0.01 m higher than on the same day last year, when the reading was 0.01 m.
What is a normal level for the River Ash at Little Hadham in mid-October?
The median for mid-October is −0.01 m. In 8 years out of 10 the reading falls between −0.08 m and 0.05 m, based on 20 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 0.02 m on the gauge does not mean the water is that deep.
What is the water level of Little Hadham today?
On 20 Oct 2026, 11:30 BST, the water level was 0.02 m. Steady over the last 24 hours.
Is Little Hadham rising or falling?
Steady over the last 24 hours. Steady over the last 7 days.
Is the level of Little Hadham normal?
High for mid-October. Compared with 20 years of daily readings for this time of year.
What is the highest water level ever recorded at Little Hadham?
The highest level on record is 1.97 m on October 21, 2001. The lowest is −0.17 m on August 18, 2007.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- Environment Agency
- Station code
ea:5039TH(Agency page)- Coordinates
51.88417, 0.09127(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 | 0.02 m | 2026-10-20 10:30 | Provisional |
Download
Embed this gauge
Add a live card for this gauge to your website. It updates on its own and links back here.
How to cite
Environment Agency: Little Hadham (ea:5039TH). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/hertfordshire/little-hadham
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