River Levels
River Levels

Carnon River at Bissoe

Current River Level


At 5:00am, Sunday 16th June BST
(4:00am, Sunday 16th June GMT)

Within the usual range for this location

Falling, -0.020 from previous measurement at 5:00pm, Saturday 15th June BST

Flood Warning Areas Covering Here

Helford and Fal Rivers

No current or recent warnings.

Other Nearby Flood Warning Areas

South Cornwall coast from Lizard Point to Gribbin Head excluding Truro City

No current or recent warnings.

River Tinney at Calenick

No current or recent warnings.

River Kenwyn from New Mill Dam to Truro

No current or recent warnings.

South Cornwall coast at Truro

No current or recent warnings.

Seven Day Level Chart

Long Term Level Chart

Darker blue shaded areas on long term data indicate maximum and minimum levels for the date (you may need to zoom in closer to see them).

Long term data may have gaps where the API data was not available.

Download long term data as csv

Note: CSV data will include any outlying values that have been ignored by our graphing system as probably erroneous (eg, because they are ridiculously high compared to the values either side of them). It is your responsibility to filter these out if necessary.

Important! If you are planning to retrieve the csv data automatically, you must read and understand the limitations on the data and its availability.

Location and Technical Data

  • Monitoring Station: Bissoe
  • Watercourse: Carnon River
  • Nearest Town/Village: Perranarworthal
  • Local Authority: Cornwall
  • Ceremonial County: Cornwall
  • Coordinates: 50°13'45"N 5°7'15"W (50.229401,-5.120933)
  • OS Grid: SW775412 (177507,41262)
  • Mapcode (Local): GBR ZB.0MZ1
  • Mapcode (Global): FRA 085F.0T3
  • Open Location Code: 9C2P6VHH+QJ
  • Maidenhead Locator System: IO70kf55
  • Environment Agency Location ID: 48137
  • Environment Agency Gauge ID: 48137-level-stage-i-15_min-m
  • River Levels Online ID: 3161
  • Water Information System ID: SW74F056
  • Operational Area: Fal
  • Catchment Area: West Cornwall and the Fal
  • UK Hydrometric Area: Fal Group
  • Environment Agency Region: South West
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 9.28m AOD

Please note: Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

The usual range of the Carnon River at Bissoe is between 0.24m and 0.86m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the Carnon River at Bissoe over the past 12 months has been between 0.26m and 1.17m. It has been between these levels for at least 150 days in the past year.

The highest level ever recorded at the Carnon River at Bissoe is 1.45m, reached on Saturday 24th November 2012 at 9:30pm.

Note that this data may not take account of recent measurements, as we wait until a level has been verified by the Environment Agency before adding it to our records.

Nearby Monitoring Locations

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