River level River Avon at Corsham

Check for flood warnings in this area

Latest recorded level 0.10m at 6:00am Monday 30 November 2020.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 0.30m here, minor flooding is possible in this area
• Highest recorded level. Hide
• Show highest recorded level

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Observed data

DateTime	Value	Error
2020-11-30T06:00Z	0.096	false
2020-11-30T05:45Z	0.092	false
2020-11-30T05:30Z	0.096	false
2020-11-30T05:15Z	0.092	false
2020-11-30T05:00Z	0.092	false
2020-11-30T04:45Z	0.092	false
2020-11-30T04:30Z	0.092	false
2020-11-30T04:15Z	0.092	false
2020-11-30T04:00Z	0.092	false
2020-11-30T03:45Z	0.096	false
2020-11-30T03:30Z	0.096	false
2020-11-30T03:15Z	0.096	false
2020-11-30T03:00Z	0.096	false
2020-11-30T02:45Z	0.092	false
2020-11-30T02:30Z	0.096	false
2020-11-30T02:15Z	0.096	false
2020-11-30T02:00Z	0.096	false
2020-11-30T01:45Z	0.096	false
2020-11-30T01:30Z	0.096	false
2020-11-30T01:15Z	0.096	false
2020-11-30T01:00Z	0.096	false
2020-11-30T00:45Z	0.096	false
2020-11-30T00:30Z	0.096	false
2020-11-30T00:15Z	0.096	false
2020-11-30T00:00Z	0.096	false
2020-11-29T23:45Z	0.096	false
2020-11-29T23:30Z	0.096	false
2020-11-29T23:15Z	0.096	false
2020-11-29T23:00Z	0.096	false
2020-11-29T22:45Z	0.096	false
2020-11-29T22:30Z	0.096	false
2020-11-29T22:15Z	0.096	false
2020-11-29T22:00Z	0.096	false
2020-11-29T21:45Z	0.096	false
2020-11-29T21:30Z	0.096	false
2020-11-29T21:15Z	0.095	false
2020-11-29T21:00Z	0.096	false
2020-11-29T20:45Z	0.095	false
2020-11-29T20:30Z	0.096	false
2020-11-29T20:15Z	0.097	false
2020-11-29T20:00Z	0.097	false
2020-11-29T19:45Z	0.096	false
2020-11-29T19:30Z	0.096	false
2020-11-29T19:15Z	0.096	false
2020-11-29T19:00Z	0.096	false
2020-11-29T18:45Z	0.096	false
2020-11-29T18:30Z	0.096	false
2020-11-29T18:15Z	0.096	false
2020-11-29T18:00Z	0.1	false
2020-11-29T17:45Z	0.1	false
2020-11-29T17:30Z	0.1	false
2020-11-29T17:15Z	0.1	false
2020-11-29T17:00Z	0.1	false
2020-11-29T16:45Z	0.1	false
2020-11-29T16:30Z	0.1	false
2020-11-29T16:15Z	0.1	false
2020-11-29T16:00Z	0.1	false
2020-11-29T15:45Z	0.1	false
2020-11-29T15:30Z	0.1	false
2020-11-29T15:15Z	0.1	false
2020-11-29T15:00Z	0.1	false
2020-11-29T14:45Z	0.1	false
2020-11-29T14:30Z	0.1	false
2020-11-29T14:15Z	0.099	false
2020-11-29T14:00Z	0.1	false
2020-11-29T13:45Z	0.1	false
2020-11-29T13:30Z	0.1	false
2020-11-29T13:15Z	0.1	false
2020-11-29T13:00Z	0.1	false
2020-11-29T12:45Z	0.1	false
2020-11-29T12:30Z	0.1	false
2020-11-29T12:15Z	0.1	false
2020-11-29T12:00Z	0.1	false
2020-11-29T11:45Z	0.1	false
2020-11-29T11:30Z	0.1	false
2020-11-29T11:15Z	0.1	false
2020-11-29T11:00Z	0.1	false
2020-11-29T10:45Z	0.1	false
2020-11-29T10:30Z	0.1	false
2020-11-29T10:15Z	0.1	false
2020-11-29T10:00Z	0.1	false
2020-11-29T09:45Z	0.1	false
2020-11-29T09:30Z	0.1	false
2020-11-29T09:15Z	0.1	false
2020-11-29T09:00Z	0.1	false
2020-11-29T08:45Z	0.1	false
2020-11-29T08:30Z	0.1	false
2020-11-29T08:15Z	0.104	false
2020-11-29T08:00Z	0.1	false
2020-11-29T07:45Z	0.1	false
2020-11-29T07:30Z	0.1	false
2020-11-29T07:15Z	0.1	false
2020-11-29T07:00Z	0.104	false
2020-11-29T06:45Z	0.1	false
2020-11-29T06:30Z	0.104	false
2020-11-29T06:15Z	0.1	false
2020-11-29T06:00Z	0.1	false
2020-11-29T05:45Z	0.104	false
2020-11-29T05:30Z	0.103	false
2020-11-29T05:15Z	0.103	false
2020-11-29T05:00Z	0.104	false
2020-11-29T04:45Z	0.104	false
2020-11-29T04:30Z	0.1	false
2020-11-29T04:15Z	0.104	false
2020-11-29T04:00Z	0.104	false
2020-11-29T03:45Z	0.104	false
2020-11-29T03:30Z	0.104	false
2020-11-29T03:15Z	0.103	false
2020-11-29T03:00Z	0.103	false
2020-11-29T02:45Z	0.104	false
2020-11-29T02:30Z	0.103	false
2020-11-29T02:15Z	0.104	false
2020-11-29T02:00Z	0.104	false
2020-11-29T01:45Z	0.103	false
2020-11-29T01:30Z	0.104	false
2020-11-29T01:15Z	0.104	false
2020-11-29T01:00Z	0.103	false
2020-11-29T00:45Z	0.104	false
2020-11-29T00:30Z	0.104	false
2020-11-29T00:15Z	0.104	false
2020-11-29T00:00Z	0.104	false
2020-11-28T23:45Z	0.104	false
2020-11-28T23:30Z	0.104	false
2020-11-28T23:15Z	0.103	false
2020-11-28T23:00Z	0.104	false
2020-11-28T22:45Z	0.107	false
2020-11-28T22:30Z	0.107	false
2020-11-28T22:15Z	0.103	false
2020-11-28T22:00Z	0.107	false
2020-11-28T21:45Z	0.107	false
2020-11-28T21:30Z	0.108	false
2020-11-28T21:15Z	0.107	false
2020-11-28T21:00Z	0.104	false
2020-11-28T20:45Z	0.107	false
2020-11-28T20:30Z	0.104	false
2020-11-28T20:15Z	0.107	false
2020-11-28T20:00Z	0.107	false
2020-11-28T19:45Z	0.107	false
2020-11-28T19:30Z	0.107	false
2020-11-28T19:15Z	0.107	false
2020-11-28T19:00Z	0.107	false
2020-11-28T18:45Z	0.107	false
2020-11-28T18:30Z	0.107	false
2020-11-28T18:15Z	0.107	false
2020-11-28T18:00Z	0.107	false
2020-11-28T17:45Z	0.107	false
2020-11-28T17:30Z	0.111	false
2020-11-28T17:15Z	0.111	false
2020-11-28T17:00Z	0.107	false
2020-11-28T16:45Z	0.107	false
2020-11-28T16:30Z	0.107	false
2020-11-28T16:15Z	0.107	false
2020-11-28T16:00Z	0.111	false
2020-11-28T15:45Z	0.107	false
2020-11-28T15:30Z	0.108	false
2020-11-28T15:15Z	0.107	false
2020-11-28T15:00Z	0.111	false
2020-11-28T14:45Z	0.111	false
2020-11-28T14:30Z	0.111	false
2020-11-28T14:15Z	0.111	false
2020-11-28T14:00Z	0.111	false
2020-11-28T13:45Z	0.111	false
2020-11-28T13:30Z	0.111	false
2020-11-28T13:15Z	0.111	false
2020-11-28T13:00Z	0.115	false
2020-11-28T12:45Z	0.114	false
2020-11-28T12:30Z	0.115	false
2020-11-28T12:15Z	0.115	false
2020-11-28T12:00Z	0.114	false
2020-11-28T11:45Z	0.114	false
2020-11-28T11:30Z	0.114	false
2020-11-28T11:15Z	0.115	false
2020-11-28T11:00Z	0.114	false
2020-11-28T10:45Z	0.115	false
2020-11-28T10:30Z	0.115	false
2020-11-28T10:15Z	0.115	false
2020-11-28T10:00Z	0.115	false
2020-11-28T09:45Z	0.118	false
2020-11-28T09:30Z	0.118	false
2020-11-28T09:15Z	0.118	false
2020-11-28T09:00Z	0.119	false
2020-11-28T08:45Z	0.119	false
2020-11-28T08:30Z	0.123	false
2020-11-28T08:15Z	0.123	false
2020-11-28T08:00Z	0.123	false
2020-11-28T07:45Z	0.127	false
2020-11-28T07:30Z	0.127	false
2020-11-28T07:15Z	0.127	false
2020-11-28T07:00Z	0.123	false
2020-11-28T06:45Z	0.123	false
2020-11-28T06:30Z	0.123	false
2020-11-28T06:15Z	0.123	false
2020-11-28T06:00Z	0.123	false
2020-11-28T05:45Z	0.123	false
2020-11-28T05:30Z	0.123	false
2020-11-28T05:15Z	0.127	false
2020-11-28T05:00Z	0.123	false
2020-11-28T04:45Z	0.127	false
2020-11-28T04:30Z	0.127	false
2020-11-28T04:15Z	0.123	false
2020-11-28T04:00Z	0.119	false
2020-11-28T03:45Z	0.115	false
2020-11-28T03:30Z	0.111	false
2020-11-28T03:15Z	0.111	false
2020-11-28T03:00Z	0.114	false
2020-11-28T02:45Z	0.115	false
2020-11-28T02:30Z	0.111	false
2020-11-28T02:15Z	0.115	false
2020-11-28T02:00Z	0.115	false
2020-11-28T01:45Z	0.115	false
2020-11-28T01:30Z	0.111	false
2020-11-28T01:15Z	0.115	false
2020-11-28T01:00Z	0.115	false
2020-11-28T00:45Z	0.115	false
2020-11-28T00:30Z	0.115	false
2020-11-28T00:15Z	0.115	false
2020-11-28T00:00Z	0.115	false
2020-11-27T23:45Z	0.115	false
2020-11-27T23:30Z	0.115	false
2020-11-27T23:15Z	0.115	false
2020-11-27T23:00Z	0.115	false
2020-11-27T22:45Z	0.115	false
2020-11-27T22:30Z	0.115	false
2020-11-27T22:15Z	0.115	false
2020-11-27T22:00Z	0.115	false
2020-11-27T21:45Z	0.115	false
2020-11-27T21:30Z	0.115	false
2020-11-27T21:15Z	0.115	false
2020-11-27T21:00Z	0.115	false
2020-11-27T20:45Z	0.115	false
2020-11-27T20:30Z	0.115	false
2020-11-27T20:15Z	0.115	false
2020-11-27T20:00Z	0.115	false
2020-11-27T19:45Z	0.115	false
2020-11-27T19:30Z	0.115	false
2020-11-27T19:15Z	0.119	false
2020-11-27T19:00Z	0.119	false
2020-11-27T18:45Z	0.119	false
2020-11-27T18:30Z	0.123	false
2020-11-27T18:15Z	0.127	false
2020-11-27T18:00Z	0.127	false
2020-11-27T17:45Z	0.131	false
2020-11-27T17:30Z	0.131	false
2020-11-27T17:15Z	0.131	false
2020-11-27T17:00Z	0.131	false
2020-11-27T16:45Z	0.127	false
2020-11-27T16:30Z	0.127	false
2020-11-27T16:15Z	0.123	false
2020-11-27T16:00Z	0.119	false
2020-11-27T15:45Z	0.119	false
2020-11-27T15:30Z	0.119	false
2020-11-27T15:15Z	0.119	false
2020-11-27T15:00Z	0.119	false
2020-11-27T14:45Z	0.119	false
2020-11-27T14:30Z	0.119	false
2020-11-27T14:15Z	0.119	false
2020-11-27T14:00Z	0.119	false
2020-11-27T13:45Z	0.119	false
2020-11-27T13:30Z	0.119	false
2020-11-27T13:15Z	0.119	false
2020-11-27T13:00Z	0.123	false
2020-11-27T12:45Z	0.123	false
2020-11-27T12:30Z	0.119	false
2020-11-27T12:15Z	0.123	false
2020-11-27T12:00Z	0.119	false
2020-11-27T11:45Z	0.123	false
2020-11-27T11:30Z	0.123	false
2020-11-27T11:15Z	0.123	false
2020-11-27T11:00Z	0.123	false
2020-11-27T10:45Z	0.123	false
2020-11-27T10:30Z	0.123	false
2020-11-27T10:15Z	0.123	false
2020-11-27T10:00Z	0.123	false
2020-11-27T09:45Z	0.123	false
2020-11-27T09:30Z	0.123	false
2020-11-27T09:15Z	0.123	false
2020-11-27T09:00Z	0.123	false
2020-11-27T08:45Z	0.123	false
2020-11-27T08:30Z	0.123	false
2020-11-27T08:15Z	0.123	false
2020-11-27T08:00Z	0.124	false
2020-11-27T07:45Z	0.123	false
2020-11-27T07:30Z	0.124	false
2020-11-27T07:15Z	0.123	false
2020-11-27T07:00Z	0.123	false
2020-11-27T06:45Z	0.124	false
2020-11-27T06:30Z	0.123	false
2020-11-27T06:15Z	0.123	false
2020-11-27T06:00Z	0.123	false
2020-11-27T05:45Z	0.123	false
2020-11-27T05:30Z	0.127	false
2020-11-27T05:15Z	0.127	false
2020-11-27T05:00Z	0.123	false
2020-11-27T04:45Z	0.127	false
2020-11-27T04:30Z	0.127	false
2020-11-27T04:15Z	0.127	false
2020-11-27T04:00Z	0.127	false
2020-11-27T03:45Z	0.127	false
2020-11-27T03:30Z	0.127	false
2020-11-27T03:15Z	0.127	false
2020-11-27T03:00Z	0.127	false
2020-11-27T02:45Z	0.127	false
2020-11-27T02:30Z	0.127	false
2020-11-27T02:15Z	0.127	false
2020-11-27T02:00Z	0.127	false
2020-11-27T01:45Z	0.127	false
2020-11-27T01:30Z	0.127	false
2020-11-27T01:15Z	0.127	false
2020-11-27T01:00Z	0.127	false
2020-11-27T00:45Z	0.127	false
2020-11-27T00:30Z	0.127	false
2020-11-27T00:15Z	0.127	false
2020-11-27T00:00Z	0.127	false
2020-11-26T23:45Z	0.127	false
2020-11-26T23:30Z	0.127	false
2020-11-26T23:15Z	0.127	false
2020-11-26T23:00Z	0.127	false
2020-11-26T22:45Z	0.127	false
2020-11-26T22:30Z	0.127	false
2020-11-26T22:15Z	0.127	false
2020-11-26T22:00Z	0.127	false
2020-11-26T21:45Z	0.127	false
2020-11-26T21:30Z	0.127	false
2020-11-26T21:15Z	0.127	false
2020-11-26T21:00Z	0.127	false
2020-11-26T20:45Z	0.131	false
2020-11-26T20:30Z	0.131	false
2020-11-26T20:15Z	0.131	false
2020-11-26T20:00Z	0.127	false
2020-11-26T19:45Z	0.131	false
2020-11-26T19:30Z	0.127	false
2020-11-26T19:15Z	0.127	false
2020-11-26T19:00Z	0.127	false
2020-11-26T18:45Z	0.131	false
2020-11-26T18:30Z	0.131	false
2020-11-26T18:15Z	0.131	false
2020-11-26T18:00Z	0.131	false
2020-11-26T17:45Z	0.131	false
2020-11-26T17:30Z	0.131	false
2020-11-26T17:15Z	0.131	false
2020-11-26T17:00Z	0.131	false
2020-11-26T16:45Z	0.131	false
2020-11-26T16:30Z	0.131	false
2020-11-26T16:15Z	0.131	false
2020-11-26T16:00Z	0.131	false
2020-11-26T15:45Z	0.131	false
2020-11-26T15:30Z	0.131	false
2020-11-26T15:15Z	0.131	false
2020-11-26T15:00Z	0.131	false
2020-11-26T14:45Z	0.131	false
2020-11-26T14:30Z	0.131	false
2020-11-26T14:15Z	0.131	false
2020-11-26T14:00Z	0.131	false
2020-11-26T13:45Z	0.131	false
2020-11-26T13:30Z	0.131	false
2020-11-26T13:15Z	0.131	false
2020-11-26T13:00Z	0.135	false
2020-11-26T12:45Z	0.135	false
2020-11-26T12:30Z	0.131	false
2020-11-26T12:15Z	0.131	false
2020-11-26T12:00Z	0.135	false
2020-11-26T11:45Z	0.135	false
2020-11-26T11:30Z	0.131	false
2020-11-26T11:15Z	0.131	false
2020-11-26T11:00Z	0.131	false
2020-11-26T10:45Z	0.131	false
2020-11-26T10:30Z	0.131	false
2020-11-26T10:15Z	0.131	false
2020-11-26T10:00Z	0.131	false
2020-11-26T09:45Z	0.131	false
2020-11-26T09:30Z	0.131	false
2020-11-26T09:15Z	0.131	false
2020-11-26T09:00Z	0.131	false
2020-11-26T08:45Z	0.135	false
2020-11-26T08:30Z	0.131	false
2020-11-26T08:15Z	0.135	false
2020-11-26T08:00Z	0.135	false
2020-11-26T07:45Z	0.135	false
2020-11-26T07:30Z	0.135	false
2020-11-26T07:15Z	0.135	false
2020-11-26T07:00Z	0.135	false
2020-11-26T06:45Z	0.135	false
2020-11-26T06:30Z	0.135	false
2020-11-26T06:15Z	0.135	false
2020-11-26T06:00Z	0.135	false
2020-11-26T05:45Z	0.135	false
2020-11-26T05:30Z	0.135	false
2020-11-26T05:15Z	0.135	false
2020-11-26T05:00Z	0.138	false
2020-11-26T04:45Z	0.135	false
2020-11-26T04:30Z	0.135	false
2020-11-26T04:15Z	0.138	false
2020-11-26T04:00Z	0.135	false
2020-11-26T03:45Z	0.135	false
2020-11-26T03:30Z	0.135	false
2020-11-26T03:15Z	0.138	false
2020-11-26T03:00Z	0.135	false
2020-11-26T02:45Z	0.138	false
2020-11-26T02:30Z	0.138	false
2020-11-26T02:15Z	0.138	false
2020-11-26T02:00Z	0.138	false
2020-11-26T01:45Z	0.138	false
2020-11-26T01:30Z	0.138	false
2020-11-26T01:15Z	0.138	false
2020-11-26T01:00Z	0.138	false
2020-11-26T00:45Z	0.138	false
2020-11-26T00:30Z	0.138	false
2020-11-26T00:15Z	0.138	false
2020-11-26T00:00Z	0.138	false
2020-11-25T23:45Z	0.138	false
2020-11-25T23:30Z	0.138	false
2020-11-25T23:15Z	0.138	false
2020-11-25T23:00Z	0.138	false
2020-11-25T22:45Z	0.138	false
2020-11-25T22:30Z	0.138	false
2020-11-25T22:15Z	0.142	false
2020-11-25T22:00Z	0.138	false
2020-11-25T21:45Z	0.142	false
2020-11-25T21:30Z	0.142	false
2020-11-25T21:15Z	0.142	false
2020-11-25T21:00Z	0.142	false
2020-11-25T20:45Z	0.142	false
2020-11-25T20:30Z	0.142	false
2020-11-25T20:15Z	0.142	false
2020-11-25T20:00Z	0.142	false
2020-11-25T19:45Z	0.142	false
2020-11-25T19:30Z	0.142	false
2020-11-25T19:15Z	0.142	false
2020-11-25T19:00Z	0.142	false
2020-11-25T18:45Z	0.145	false
2020-11-25T18:30Z	0.145	false
2020-11-25T18:15Z	0.145	false
2020-11-25T18:00Z	0.145	false
2020-11-25T17:45Z	0.145	false
2020-11-25T17:30Z	0.157	false
2020-11-25T17:15Z	0.157	false
2020-11-25T17:00Z	0.157	false
2020-11-25T16:45Z	0.157	false
2020-11-25T16:30Z	0.157	false
2020-11-25T16:15Z	0.161	false
2020-11-25T16:00Z	0.161	false
2020-11-25T15:45Z	0.165	false
2020-11-25T15:30Z	0.168	false
2020-11-25T15:15Z	0.175	false
2020-11-25T15:00Z	0.179	false
2020-11-25T14:45Z	0.184	false
2020-11-25T14:30Z	0.184	false
2020-11-25T14:15Z	0.184	false
2020-11-25T14:00Z	0.188	false
2020-11-25T13:45Z	0.188	false
2020-11-25T13:30Z	0.188	false
2020-11-25T13:15Z	0.192	false
2020-11-25T13:00Z	0.195	false
2020-11-25T12:45Z	0.195	false
2020-11-25T12:30Z	0.199	false
2020-11-25T12:15Z	0.199	false
2020-11-25T12:00Z	0.199	false
2020-11-25T11:45Z	0.199	false
2020-11-25T11:30Z	0.202	false
2020-11-25T11:15Z	0.206	false
2020-11-25T11:00Z	0.206	false
2020-11-25T10:45Z	0.21	false
2020-11-25T10:30Z	0.219	false
2020-11-25T10:15Z	0.218	false
2020-11-25T10:00Z	0.222	false
2020-11-25T09:45Z	0.23	false
2020-11-25T09:30Z	0.233	false
2020-11-25T09:15Z	0.241	false
2020-11-25T09:00Z	0.252	false
2020-11-25T08:45Z	0.276	false
2020-11-25T08:30Z	0.314	false
2020-11-25T08:15Z	0.371	false
2020-11-25T08:00Z	0.379	false
2020-11-25T07:45Z	0.333	false
2020-11-25T07:30Z	0.321	false
2020-11-25T07:15Z	0.187	false
2020-11-25T07:00Z	0.252	false
2020-11-25T06:45Z	0.26	false

Forecast data

Key information

• Station name: Corsham
• Station ID: 9123
• River name: River Avon
• Typical range: 0.10m to 0.30m
• Highest level on record: 0.83m on 21 November 2016
• Site datum: 0.00mAOD (what does this mean?)

How are river levels measured?

The Environment agency uses a network of monitoring stations across the country. Each one has its own datum - a height in metres fixed relative to mean sea level. This height is expressed as metres above ordnance datum (mAOD). The river levels we provide for each monitoring station are all relative to its site datum.

If we didn't do this, we'd show some very high measurements, which could cause confusion. By using a local site datum, the river levels are easier to understand, especially by users familiar with the data from a particular monitoring station.

A river's height above ordnance datum can be seen by adding the site datum to the river level.

How often are river levels measured?

We use measuring stations like this one to collect water level data, usually once or twice a day. We collect data more frequently when there's a greater risk of flooding. That's why the graph might show a short time lag since the last measurement.

How might river levels affect flood risk?

Typical range

This is the usual range of river levels at this station, based on historical data.

Above typical

This means that flooding is possible because river levels at this station are currently higher than usual.
Many factors can influence the possibility of flooding - river levels are only one indicator. Always check if there's a flood warning in place at a particular location.

Below typical

This means that river levels at this station are currently lower than usual.
Drought or water management measures may be in place. Please check for the latest information on water resources and restrictions in your area.

• View nearby measuring stations

• View the flood information service for England
• Check the long term flood risk for an area in England.

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