River level River Pinn at Ruislip

Check for flood warnings in this area

Latest recorded level 0.45m at 5:30am Saturday 20 July 2019.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 1.00m 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
2019-07-20T04:30Z	0.447	false
2019-07-20T04:15Z	0.47	false
2019-07-20T04:00Z	0.49	false
2019-07-20T03:45Z	0.501	false
2019-07-20T03:30Z	0.506	false
2019-07-20T03:15Z	0.512	false
2019-07-20T03:00Z	0.538	false
2019-07-20T02:45Z	0.559	false
2019-07-20T02:30Z	0.559	false
2019-07-20T02:15Z	0.526	false
2019-07-20T02:00Z	0.469	false
2019-07-20T01:45Z	0.406	false
2019-07-20T01:30Z	0.354	false
2019-07-20T01:15Z	0.264	false
2019-07-20T01:00Z	0.247	false
2019-07-20T00:45Z	0.236	false
2019-07-20T00:30Z	0.219	false
2019-07-20T00:15Z	0.209	false
2019-07-20T00:00Z	0.213	false
2019-07-19T23:45Z	0.215	false
2019-07-19T23:30Z	0.215	false
2019-07-19T23:15Z	0.216	false
2019-07-19T23:00Z	0.215	false
2019-07-19T22:45Z	0.214	false
2019-07-19T22:30Z	0.213	false
2019-07-19T22:15Z	0.211	false
2019-07-19T22:00Z	0.21	false
2019-07-19T21:45Z	0.211	false
2019-07-19T21:30Z	0.213	false
2019-07-19T21:15Z	0.216	false
2019-07-19T21:00Z	0.221	false
2019-07-19T20:45Z	0.225	false
2019-07-19T20:30Z	0.227	false
2019-07-19T20:15Z	0.227	false
2019-07-19T20:00Z	0.224	false
2019-07-19T19:45Z	0.221	false
2019-07-19T19:30Z	0.218	false
2019-07-19T19:15Z	0.215	false
2019-07-19T19:00Z	0.206	false
2019-07-19T18:45Z	0.205	false
2019-07-19T18:30Z	0.196	false
2019-07-19T18:15Z	0.199	false
2019-07-19T18:00Z	0.201	false
2019-07-19T17:45Z	0.202	false
2019-07-19T17:30Z	0.205	false
2019-07-19T17:15Z	0.209	false
2019-07-19T17:00Z	0.214	false
2019-07-19T16:45Z	0.219	false
2019-07-19T16:30Z	0.227	false
2019-07-19T16:15Z	0.234	false
2019-07-19T16:00Z	0.244	false
2019-07-19T15:45Z	0.253	false
2019-07-19T15:30Z	0.267	false
2019-07-19T15:15Z	0.28	false
2019-07-19T15:00Z	0.297	false
2019-07-19T14:45Z	0.313	false
2019-07-19T14:30Z	0.33	false
2019-07-19T14:15Z	0.342	false
2019-07-19T14:00Z	0.353	false
2019-07-19T13:45Z	0.358	false
2019-07-19T13:30Z	0.366	false
2019-07-19T13:15Z	0.368	false
2019-07-19T13:00Z	0.368	false
2019-07-19T12:45Z	0.362	false
2019-07-19T12:30Z	0.365	false
2019-07-19T12:15Z	0.389	false
2019-07-19T12:00Z	0.417	false
2019-07-19T11:45Z	0.422	false
2019-07-19T11:30Z	0.391	false
2019-07-19T11:15Z	0.346	false
2019-07-19T11:00Z	0.284	false
2019-07-19T10:45Z	0.224	false
2019-07-19T10:30Z	0.226	false
2019-07-19T10:15Z	0.14	false
2019-07-19T10:00Z	0.126	false
2019-07-19T09:45Z	0.126	false
2019-07-19T09:30Z	0.126	false
2019-07-19T09:15Z	0.126	false
2019-07-19T09:00Z	0.125	false
2019-07-19T08:45Z	0.124	false
2019-07-19T08:30Z	0.126	false
2019-07-19T08:15Z	0.125	false
2019-07-19T08:00Z	0.125	false
2019-07-19T07:45Z	0.126	false
2019-07-19T07:30Z	0.126	false
2019-07-19T07:15Z	0.125	false
2019-07-19T07:00Z	0.125	false
2019-07-19T06:45Z	0.125	false
2019-07-19T06:30Z	0.125	false
2019-07-19T06:15Z	0.125	false
2019-07-19T06:00Z	0.125	false
2019-07-19T05:45Z	0.125	false
2019-07-19T05:30Z	0.125	false
2019-07-19T05:15Z	0.126	false
2019-07-19T05:00Z	0.126	false
2019-07-19T04:45Z	0.126	false
2019-07-19T04:30Z	0.126	false
2019-07-19T04:15Z	0.126	false
2019-07-19T04:00Z	0.126	false
2019-07-19T03:45Z	0.126	false
2019-07-19T03:30Z	0.126	false
2019-07-19T03:15Z	0.126	false
2019-07-19T03:00Z	0.127	false
2019-07-19T02:45Z	0.127	false
2019-07-19T02:30Z	0.127	false
2019-07-19T02:15Z	0.127	false
2019-07-19T02:00Z	0.127	false
2019-07-19T01:45Z	0.127	false
2019-07-19T01:30Z	0.128	false
2019-07-19T01:15Z	0.128	false
2019-07-19T01:00Z	0.128	false
2019-07-19T00:45Z	0.128	false
2019-07-19T00:30Z	0.129	false
2019-07-19T00:15Z	0.129	false
2019-07-19T00:00Z	0.129	false
2019-07-18T23:45Z	0.13	false
2019-07-18T23:30Z	0.13	false
2019-07-18T23:15Z	0.13	false
2019-07-18T23:00Z	0.131	false
2019-07-18T22:45Z	0.131	false
2019-07-18T22:30Z	0.131	false
2019-07-18T22:15Z	0.131	false
2019-07-18T22:00Z	0.132	false
2019-07-18T21:45Z	0.132	false
2019-07-18T21:30Z	0.132	false
2019-07-18T21:15Z	0.133	false
2019-07-18T21:00Z	0.133	false
2019-07-18T20:45Z	0.134	false
2019-07-18T20:30Z	0.134	false
2019-07-18T20:15Z	0.135	false
2019-07-18T20:00Z	0.135	false
2019-07-18T19:45Z	0.136	false
2019-07-18T19:30Z	0.136	false
2019-07-18T19:15Z	0.138	false
2019-07-18T19:00Z	0.138	false
2019-07-18T18:45Z	0.139	false
2019-07-18T18:30Z	0.14	false
2019-07-18T18:15Z	0.14	false
2019-07-18T18:00Z	0.142	false
2019-07-18T17:45Z	0.142	false
2019-07-18T17:30Z	0.143	false
2019-07-18T17:15Z	0.145	false
2019-07-18T17:00Z	0.146	false
2019-07-18T16:45Z	0.147	false
2019-07-18T16:30Z	0.148	false
2019-07-18T16:15Z	0.149	false
2019-07-18T16:00Z	0.152	false
2019-07-18T15:45Z	0.153	false
2019-07-18T15:30Z	0.155	false
2019-07-18T15:15Z	0.157	false
2019-07-18T15:00Z	0.16	false
2019-07-18T14:45Z	0.162	false
2019-07-18T14:30Z	0.165	false
2019-07-18T14:15Z	0.168	false
2019-07-18T14:00Z	0.172	false
2019-07-18T13:45Z	0.175	false
2019-07-18T13:30Z	0.18	false
2019-07-18T13:15Z	0.184	false
2019-07-18T13:00Z	0.19	false
2019-07-18T12:45Z	0.196	false
2019-07-18T12:30Z	0.203	false
2019-07-18T12:15Z	0.211	false
2019-07-18T12:00Z	0.22	false
2019-07-18T11:45Z	0.229	false
2019-07-18T11:30Z	0.24	false
2019-07-18T11:15Z	0.249	false
2019-07-18T11:00Z	0.259	false
2019-07-18T10:45Z	0.264	false
2019-07-18T10:30Z	0.268	false
2019-07-18T10:15Z	0.271	false
2019-07-18T10:00Z	0.27	false
2019-07-18T09:45Z	0.259	false
2019-07-18T09:30Z	0.235	false
2019-07-18T09:15Z	0.232	false
2019-07-18T09:00Z	0.247	false
2019-07-18T08:45Z	0.262	false
2019-07-18T08:30Z	0.276	false
2019-07-18T08:15Z	0.277	false
2019-07-18T08:00Z	0.254	false
2019-07-18T07:45Z	0.224	false
2019-07-18T07:30Z	0.197	false
2019-07-18T07:15Z	0.169	false
2019-07-18T07:00Z	0.167	false
2019-07-18T06:45Z	0.184	false
2019-07-18T06:30Z	0.126	false
2019-07-18T06:15Z	0.125	false
2019-07-18T06:00Z	0.124	false
2019-07-18T05:45Z	0.124	false
2019-07-18T05:30Z	0.124	false
2019-07-18T05:15Z	0.124	false
2019-07-18T05:00Z	0.124	false
2019-07-18T04:45Z	0.124	false
2019-07-18T04:30Z	0.124	false
2019-07-18T04:15Z	0.124	false
2019-07-18T04:00Z	0.123	false
2019-07-18T03:45Z	0.124	false
2019-07-18T03:30Z	0.124	false
2019-07-18T03:15Z	0.123	false
2019-07-18T03:00Z	0.123	false
2019-07-18T02:45Z	0.124	false
2019-07-18T02:30Z	0.124	false
2019-07-18T02:15Z	0.124	false
2019-07-18T02:00Z	0.124	false
2019-07-18T01:45Z	0.124	false
2019-07-18T01:30Z	0.124	false
2019-07-18T01:15Z	0.125	false
2019-07-18T01:00Z	0.125	false
2019-07-18T00:45Z	0.125	false
2019-07-18T00:30Z	0.125	false
2019-07-18T00:15Z	0.125	false
2019-07-18T00:00Z	0.125	false
2019-07-17T23:45Z	0.125	false
2019-07-17T23:30Z	0.125	false
2019-07-17T23:15Z	0.125	false
2019-07-17T23:00Z	0.125	false
2019-07-17T22:45Z	0.125	false
2019-07-17T22:30Z	0.125	false
2019-07-17T22:15Z	0.125	false
2019-07-17T22:00Z	0.125	false
2019-07-17T21:45Z	0.125	false
2019-07-17T21:30Z	0.125	false
2019-07-17T21:15Z	0.125	false
2019-07-17T21:00Z	0.124	false
2019-07-17T20:45Z	0.124	false
2019-07-17T20:30Z	0.124	false
2019-07-17T20:15Z	0.125	false
2019-07-17T20:00Z	0.124	false
2019-07-17T19:45Z	0.124	false
2019-07-17T19:30Z	0.124	false
2019-07-17T19:15Z	0.124	false
2019-07-17T19:00Z	0.124	false
2019-07-17T18:45Z	0.124	false
2019-07-17T18:30Z	0.123	false
2019-07-17T18:15Z	0.124	false
2019-07-17T18:00Z	0.124	false
2019-07-17T17:45Z	0.124	false
2019-07-17T17:30Z	0.124	false
2019-07-17T17:15Z	0.124	false
2019-07-17T17:00Z	0.124	false
2019-07-17T16:45Z	0.124	false
2019-07-17T16:30Z	0.124	false
2019-07-17T16:15Z	0.124	false
2019-07-17T16:00Z	0.124	false
2019-07-17T15:45Z	0.124	false
2019-07-17T15:30Z	0.124	false
2019-07-17T15:15Z	0.124	false
2019-07-17T15:00Z	0.124	false
2019-07-17T14:45Z	0.125	false
2019-07-17T14:30Z	0.125	false
2019-07-17T14:15Z	0.125	false
2019-07-17T14:00Z	0.125	false
2019-07-17T13:45Z	0.126	false
2019-07-17T13:30Z	0.126	false
2019-07-17T13:15Z	0.126	false
2019-07-17T13:00Z	0.125	false
2019-07-17T12:45Z	0.125	false
2019-07-17T12:30Z	0.125	false
2019-07-17T12:15Z	0.125	false
2019-07-17T12:00Z	0.125	false
2019-07-17T11:45Z	0.125	false
2019-07-17T11:30Z	0.125	false
2019-07-17T11:15Z	0.125	false
2019-07-17T11:00Z	0.125	false
2019-07-17T10:45Z	0.125	false
2019-07-17T10:30Z	0.124	false
2019-07-17T10:15Z	0.125	false
2019-07-17T10:00Z	0.125	false
2019-07-17T09:45Z	0.124	false
2019-07-17T09:30Z	0.124	false
2019-07-17T09:15Z	0.125	false
2019-07-17T09:00Z	0.124	false
2019-07-17T08:45Z	0.125	false
2019-07-17T08:30Z	0.124	false
2019-07-17T08:15Z	0.124	false
2019-07-17T08:00Z	0.125	false
2019-07-17T07:45Z	0.124	false
2019-07-17T07:30Z	0.124	false
2019-07-17T07:15Z	0.124	false
2019-07-17T07:00Z	0.124	false
2019-07-17T06:45Z	0.125	false
2019-07-17T06:30Z	0.125	false
2019-07-17T06:15Z	0.124	false
2019-07-17T06:00Z	0.125	false
2019-07-17T05:45Z	0.125	false
2019-07-17T05:30Z	0.124	false
2019-07-17T05:15Z	0.125	false
2019-07-17T05:00Z	0.124	false
2019-07-17T04:45Z	0.124	false
2019-07-17T04:30Z	0.125	false
2019-07-17T04:15Z	0.125	false
2019-07-17T04:00Z	0.125	false
2019-07-17T03:45Z	0.125	false
2019-07-17T03:30Z	0.125	false
2019-07-17T03:15Z	0.124	false
2019-07-17T03:00Z	0.125	false
2019-07-17T02:45Z	0.125	false
2019-07-17T02:30Z	0.125	false
2019-07-17T02:15Z	0.125	false
2019-07-17T02:00Z	0.125	false
2019-07-17T01:45Z	0.125	false
2019-07-17T01:30Z	0.124	false
2019-07-17T01:15Z	0.125	false
2019-07-17T01:00Z	0.125	false
2019-07-17T00:45Z	0.124	false
2019-07-17T00:30Z	0.124	false
2019-07-17T00:15Z	0.125	false
2019-07-17T00:00Z	0.124	false
2019-07-16T23:45Z	0.124	false
2019-07-16T23:30Z	0.124	false
2019-07-16T23:15Z	0.124	false
2019-07-16T23:00Z	0.124	false
2019-07-16T22:45Z	0.124	false
2019-07-16T22:30Z	0.124	false
2019-07-16T22:15Z	0.123	false
2019-07-16T22:00Z	0.124	false
2019-07-16T21:45Z	0.124	false
2019-07-16T21:30Z	0.123	false
2019-07-16T21:15Z	0.123	false
2019-07-16T21:00Z	0.123	false
2019-07-16T20:45Z	0.123	false
2019-07-16T20:30Z	0.123	false
2019-07-16T20:15Z	0.123	false
2019-07-16T20:00Z	0.123	false
2019-07-16T19:45Z	0.123	false
2019-07-16T19:30Z	0.123	false
2019-07-16T19:15Z	0.124	false
2019-07-16T19:00Z	0.123	false
2019-07-16T18:45Z	0.124	false
2019-07-16T18:30Z	0.124	false
2019-07-16T18:15Z	0.124	false
2019-07-16T18:00Z	0.124	false
2019-07-16T17:45Z	0.124	false
2019-07-16T17:30Z	0.124	false
2019-07-16T17:15Z	0.124	false
2019-07-16T17:00Z	0.125	false
2019-07-16T16:45Z	0.125	false
2019-07-16T16:30Z	0.125	false
2019-07-16T16:15Z	0.126	false
2019-07-16T16:00Z	0.125	false
2019-07-16T15:45Z	0.126	false
2019-07-16T15:30Z	0.126	false
2019-07-16T15:15Z	0.126	false
2019-07-16T15:00Z	0.126	false
2019-07-16T14:45Z	0.125	false
2019-07-16T14:30Z	0.126	false
2019-07-16T14:15Z	0.126	false
2019-07-16T14:00Z	0.126	false
2019-07-16T13:45Z	0.126	false
2019-07-16T13:30Z	0.126	false
2019-07-16T13:15Z	0.126	false
2019-07-16T13:00Z	0.126	false
2019-07-16T12:45Z	0.126	false
2019-07-16T12:30Z	0.126	false
2019-07-16T12:15Z	0.126	false
2019-07-16T12:00Z	0.127	false
2019-07-16T11:45Z	0.128	false
2019-07-16T11:30Z	0.128	false
2019-07-16T11:15Z	0.128	false
2019-07-16T11:00Z	0.128	false
2019-07-16T10:45Z	0.128	false
2019-07-16T10:30Z	0.129	false
2019-07-16T10:15Z	0.127	false
2019-07-16T10:00Z	0.128	false
2019-07-16T09:45Z	0.127	false
2019-07-16T09:30Z	0.127	false
2019-07-16T09:15Z	0.126	false
2019-07-16T09:00Z	0.126	false
2019-07-16T08:45Z	0.126	false
2019-07-16T08:30Z	0.126	false
2019-07-16T08:15Z	0.125	false
2019-07-16T08:00Z	0.125	false
2019-07-16T07:45Z	0.125	false
2019-07-16T07:30Z	0.125	false
2019-07-16T07:15Z	0.125	false
2019-07-16T07:00Z	0.125	false
2019-07-16T06:45Z	0.125	false
2019-07-16T06:30Z	0.125	false
2019-07-16T06:15Z	0.125	false
2019-07-16T06:00Z	0.125	false
2019-07-16T05:45Z	0.125	false
2019-07-16T05:30Z	0.125	false
2019-07-16T05:15Z	0.125	false
2019-07-16T05:00Z	0.125	false
2019-07-16T04:45Z	0.125	false
2019-07-16T04:30Z	0.125	false
2019-07-16T04:15Z	0.125	false
2019-07-16T04:00Z	0.125	false
2019-07-16T03:45Z	0.125	false
2019-07-16T03:30Z	0.125	false
2019-07-16T03:15Z	0.125	false
2019-07-16T03:00Z	0.125	false
2019-07-16T02:45Z	0.125	false
2019-07-16T02:30Z	0.125	false
2019-07-16T02:15Z	0.125	false
2019-07-16T02:00Z	0.125	false
2019-07-16T01:45Z	0.126	false
2019-07-16T01:30Z	0.125	false
2019-07-16T01:15Z	0.125	false
2019-07-16T01:00Z	0.125	false
2019-07-16T00:45Z	0.125	false
2019-07-16T00:30Z	0.125	false
2019-07-16T00:15Z	0.125	false
2019-07-16T00:00Z	0.125	false
2019-07-15T23:45Z	0.126	false
2019-07-15T23:30Z	0.126	false
2019-07-15T23:15Z	0.125	false
2019-07-15T23:00Z	0.126	false
2019-07-15T22:45Z	0.126	false
2019-07-15T22:30Z	0.126	false
2019-07-15T22:15Z	0.126	false
2019-07-15T22:00Z	0.126	false
2019-07-15T21:45Z	0.126	false
2019-07-15T21:30Z	0.126	false
2019-07-15T21:15Z	0.126	false
2019-07-15T21:00Z	0.126	false
2019-07-15T20:45Z	0.126	false
2019-07-15T20:30Z	0.125	false
2019-07-15T20:15Z	0.125	false
2019-07-15T20:00Z	0.126	false
2019-07-15T19:45Z	0.125	false
2019-07-15T19:30Z	0.125	false
2019-07-15T19:15Z	0.125	false
2019-07-15T19:00Z	0.125	false
2019-07-15T18:45Z	0.125	false
2019-07-15T18:30Z	0.124	false
2019-07-15T18:15Z	0.125	false
2019-07-15T18:00Z	0.125	false
2019-07-15T17:45Z	0.125	false
2019-07-15T17:30Z	0.125	false
2019-07-15T17:15Z	0.126	false
2019-07-15T17:00Z	0.126	false
2019-07-15T16:45Z	0.126	false
2019-07-15T16:30Z	0.126	false
2019-07-15T16:15Z	0.126	false
2019-07-15T16:00Z	0.126	false
2019-07-15T15:45Z	0.126	false
2019-07-15T15:30Z	0.126	false
2019-07-15T15:15Z	0.126	false
2019-07-15T15:00Z	0.127	false
2019-07-15T14:45Z	0.126	false
2019-07-15T14:30Z	0.126	false
2019-07-15T14:15Z	0.126	false
2019-07-15T14:00Z	0.127	false
2019-07-15T13:45Z	0.126	false
2019-07-15T13:30Z	0.126	false
2019-07-15T13:15Z	0.126	false
2019-07-15T13:00Z	0.126	false
2019-07-15T12:45Z	0.127	false
2019-07-15T12:30Z	0.127	false
2019-07-15T12:15Z	0.127	false
2019-07-15T12:00Z	0.127	false
2019-07-15T11:45Z	0.127	false
2019-07-15T11:30Z	0.128	false
2019-07-15T11:15Z	0.128	false
2019-07-15T11:00Z	0.127	false
2019-07-15T10:45Z	0.127	false
2019-07-15T10:30Z	0.128	false
2019-07-15T10:15Z	0.127	false
2019-07-15T10:00Z	0.127	false
2019-07-15T09:45Z	0.127	false
2019-07-15T09:30Z	0.127	false
2019-07-15T09:15Z	0.127	false
2019-07-15T09:00Z	0.126	false
2019-07-15T08:45Z	0.126	false
2019-07-15T08:30Z	0.126	false
2019-07-15T08:15Z	0.126	false
2019-07-15T08:00Z	0.126	false
2019-07-15T07:45Z	0.126	false
2019-07-15T07:30Z	0.126	false
2019-07-15T07:15Z	0.126	false
2019-07-15T07:00Z	0.126	false
2019-07-15T06:45Z	0.127	false
2019-07-15T06:30Z	0.126	false
2019-07-15T06:15Z	0.126	false
2019-07-15T06:00Z	0.126	false
2019-07-15T05:45Z	0.126	false
2019-07-15T05:30Z	0.126	false
2019-07-15T05:15Z	0.126	false
2019-07-15T05:00Z	0.126	false
2019-07-15T04:45Z	0.127	false

Forecast data

Key information

• Station name: Ruislip
• Station ID: 7005
• River name: River Pinn
• Typical range: 0.14m to 1.00m
• Highest level on record: 1.83m on 23 June 2016
• Site datum: 39.00mAOD (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
• View your property's long term risk of flooding

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