Bissoe water level
River gauge, Carnon River, Cornwall, United Kingdom
Right now
Low for mid-October
Water level
History
20252026
What this means
The Carnon River at Bissoe is running below normal at 0.26 m.
That puts it 0.03 m below the median of 0.29 m for mid-October, based on 21 years of readings. A year ago it stood at 0.26 m as well.
It has dropped 0.02 m over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. In the last month it has stayed between 0.25 m and 0.40 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
- 0.29 m0.03 m below the median for this date
- Normal for this date
- 0.25 m – 0.66 m8 years in 10 fall in this range (21 years of records)
- Normal range
- 0.24 m – 0.86 m
- Same day last year
- 0.26 m0.00 m
- Lowest and highest in 30 days
- 0.25 m – 0.40 m
- Lowest and highest in 12 months
- 0.25 m – 1.59 m
- Highest on record
- 1.45 mNovember 24, 2012
- Lowest on record
- 0.21 mNovember 8, 2011
Fishing and paddling
At low levels, many rivers become a walk-and-paddle trip. Fish hold in deeper pools and spook easily.
Flood alerts and warnings come from the Environment Agency.
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.
Forecast: Open-Meteo
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| PonsanoothRiver gauge, River Kennall | 0.05 m | Very low | ±0 | 3.8 km |
| TruroRiver gauge, River Kenwyn | 0.09 m | Very low | −0.03 m | 5.8 km |
| Idless DamRiver gauge, River Allen | 0.04 m | Low | −0.01 m | 7.6 km |
| Rose in ValeRiver gauge, Perrancombe Stream | 0.30 m | Normal | −0.02 m | 9.7 km |
| Bolingey Cocks BridgeRiver gauge, Bolingey Stream | 0.22 m | Normal | −0.04 m | 12 km |
| PerrancoombeRiver gauge, Perrancombe Stream | 0.12 m | Normal | −0.02 m | 13 km |
| TrenearRiver gauge, River Cober | 0.36 m | Normal | −0.02 m | 14 km |
| BoscadjackRiver gauge, River Cober | 0.30 m | Normal | −0.02 m | 15 km |
Questions and answers
How does the Carnon River at Bissoe compare with last year?
It is about the same as on this day last year, when the reading was 0.26 m.
What is a normal level for the Carnon River at Bissoe in mid-October?
The median for mid-October is 0.29 m. In 8 years out of 10 the reading falls between 0.25 m and 0.66 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 0.26 m on the gauge does not mean the water is that deep.
What is the water level of Bissoe today?
On 17 Oct 2026, 06:30 BST, the water level was 0.26 m. Down 0.02 m over the last 24 hours.
Is Bissoe rising or falling?
Down 0.02 m over the last 24 hours. Steady over the last 7 days.
Is the level of Bissoe normal?
Low for mid-October. Compared with 21 years of daily readings for this time of year.
What is the highest water level ever recorded at Bissoe?
The highest level on record is 1.45 m on November 24, 2012. The lowest is 0.21 m on November 8, 2011.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- Environment Agency
- Station code
ea:48137(Agency page)- Coordinates
50.22940, -5.12093(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 | 2026-10-17 05:30 | Provisional |
Download
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How to cite
Environment Agency: Bissoe (ea:48137). Accessed October 17, 2026 via Nivelmap, https://nivelmap.com/en/united-kingdom/cornwall/bissoe
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