River Levels
River Levels

River Mole at Horley

Current River Level


At 9:45am, Tuesday 23rd July BST
(8:45am, Tuesday 23rd July GMT)

Within the usual range for this location

Steady, no change from previous measurement at 9:30am, Tuesday 23rd July BST

Flood Warning Areas Covering Here

River Mole at Charlwood and Hookwood

No current or recent warnings.

Upper River Mole, Ifield Brook, Gatwick Stream and Burstow Stream

No current or recent warnings.

Other Nearby Flood Warning Areas

Gatwick Stream at South West Horley

No current or recent warnings.

Burstow Stream at East and North Horley

No current or recent warnings.

Salfords Stream at Salfords

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: Horley
  • Watercourse: Mole
  • Nearest Town/Village: Charlwood
  • Local Authority: Mole Valley
  • Ceremonial County: Surrey
  • Coordinates: 51°10'26"N 0°10'59"W (51.173918,-0.18323)
  • OS Grid: TQ271432 (527100,143200)
  • Mapcode (Local): GBR JJT.8J4
  • Mapcode (Global): VHGSH.RRZF
  • Open Location Code: 9C3X5RF8+HP
  • Maidenhead Locator System: IO91ve81
  • Environment Agency Location ID: 3230TH
  • Environment Agency Gauge ID: 3230TH-level-stage-i-15_min-mASD
  • River Levels Online ID: 7254
  • Water Information System ID: 3230TH
  • Operational Area: Lower Mole and Rythe
  • Catchment Area: Mole
  • UK Hydrometric Area: Thames
  • Environment Agency Region: Thames
  • Datum Type: Above Stage Datum (ASD)
  • Stage Datum: 51.01m 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 River Mole at Horley is between 0.19m and 2.42m. It has been between these levels for 90% of the time since monitoring began.

The typical recent level of the River Mole at Horley over the past 12 months has been between 0.21m and 1.89m. It has been between these levels for at least 150 days in the past year.

The highest level ever recorded at the River Mole at Horley is 3.44m, reached on Tuesday 24th December 2013 at 11:45am.

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.

View the catchment for River Mole at Horley.

Nearby Monitoring Locations

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