River Levels
River Levels

River Colne at Watford (Downstream)

Current River Level

-0.090m

At 11:45am, Sunday 22nd December GMT

Within the usual range for this location

Steady, no change from previous measurement at 11:30am, Sunday 22nd December GMT

View upstream gauge levels

Latest Flow

1.76 m3/s

(Daily Average)

Recorded on Friday 20th December

Above normal flow volume

Decrease, -0.04 from previous recording on Thursday 19th December

Flood Warning Areas Covering Here

River Colne at Watford

No current or recent warnings.

Middle River Colne

No current or recent warnings.

Other Nearby Flood Warning Areas

River Gade at Kings Langley and Croxley

No current or recent warnings.

Radlett Brook at Radlett

No current or recent warnings.

Radlett and Borehamwood Brooks at Borehamwood

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: Watford
  • Watercourse: River Colne, Hertfordshire
  • Nearest Town/Village: Watford
  • Local Authority: Watford
  • Ceremonial County: Hertfordshire
  • Coordinates: 51°40'14"N 0°22'48"W (51.670654,-0.380235)
  • OS Grid: TQ1210898118 (512108,198118)
  • Mapcode (Local): GBR 47.BT2
  • Mapcode (Global): VHFSM.C8BM
  • Open Location Code: 9C3XMJC9+7W
  • Maidenhead Locator System: IO91tq40
  • Environment Agency Location ID: 2830TH
  • Environment Agency Gauge ID: 2830TH-level-downstage-i-15_min-mASD
  • River Levels Online ID: 7184
  • Water Information System ID: 2830TH
  • Operational Area: Colne
  • Catchment Area: Colne
  • UK Hydrometric Area: Thames
  • Environment Agency Region: Thames
  • Datum Type: Above Stage Datum (ASD)

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 River Colne at Watford (Downstream) is between -0.52m and 0.10m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Colne at Watford (Downstream) over the past 12 months has been between -0.38m and 0.37m. It has been between these levels for at least 151 days in the past year.

View the catchment for River Colne at Watford (Downstream).

Nearby Monitoring Locations

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