River level River Pinn at Ruislip

Check for flood warnings in this area

Latest recorded level 0.18m at 5:30am Monday 28 September 2020.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 1.20m here, minor flooding is possible in this area
• Highest recorded level. Hide
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Observed data

DateTime	Value	Error
2020-09-28T04:30Z	0.175	false
2020-09-28T04:15Z	0.175	false
2020-09-28T04:00Z	0.176	false
2020-09-28T03:45Z	0.176	false
2020-09-28T03:30Z	0.176	false
2020-09-28T03:15Z	0.177	false
2020-09-28T03:00Z	0.177	false
2020-09-28T02:45Z	0.177	false
2020-09-28T02:30Z	0.177	false
2020-09-28T02:15Z	0.177	false
2020-09-28T02:00Z	0.178	false
2020-09-28T01:45Z	0.177	false
2020-09-28T01:30Z	0.178	false
2020-09-28T01:15Z	0.178	false
2020-09-28T01:00Z	0.178	false
2020-09-28T00:45Z	0.178	false
2020-09-28T00:30Z	0.178	false
2020-09-28T00:15Z	0.178	false
2020-09-28T00:00Z	0.178	false
2020-09-27T23:45Z	0.178	false
2020-09-27T23:30Z	0.178	false
2020-09-27T23:15Z	0.178	false
2020-09-27T23:00Z	0.178	false
2020-09-27T22:45Z	0.178	false
2020-09-27T22:30Z	0.178	false
2020-09-27T22:15Z	0.178	false
2020-09-27T22:00Z	0.178	false
2020-09-27T21:45Z	0.178	false
2020-09-27T21:30Z	0.178	false
2020-09-27T21:15Z	0.177	false
2020-09-27T21:00Z	0.178	false
2020-09-27T20:45Z	0.177	false
2020-09-27T20:30Z	0.177	false
2020-09-27T20:15Z	0.177	false
2020-09-27T20:00Z	0.177	false
2020-09-27T19:45Z	0.176	false
2020-09-27T19:30Z	0.176	false
2020-09-27T19:15Z	0.176	false
2020-09-27T19:00Z	0.176	false
2020-09-27T18:45Z	0.175	false
2020-09-27T18:30Z	0.175	false
2020-09-27T18:15Z	0.175	false
2020-09-27T18:00Z	0.175	false
2020-09-27T17:45Z	0.174	false
2020-09-27T17:30Z	0.174	false
2020-09-27T17:15Z	0.174	false
2020-09-27T17:00Z	0.174	false
2020-09-27T16:45Z	0.174	false
2020-09-27T16:30Z	0.174	false
2020-09-27T16:15Z	0.174	false
2020-09-27T16:00Z	0.174	false
2020-09-27T15:45Z	0.174	false
2020-09-27T15:30Z	0.175	false
2020-09-27T15:15Z	0.174	false
2020-09-27T15:00Z	0.174	false
2020-09-27T14:45Z	0.174	false
2020-09-27T14:30Z	0.174	false
2020-09-27T14:15Z	0.174	false
2020-09-27T14:00Z	0.175	false
2020-09-27T13:45Z	0.174	false
2020-09-27T13:30Z	0.174	false
2020-09-27T13:15Z	0.175	false
2020-09-27T13:00Z	0.174	false
2020-09-27T12:45Z	0.174	false
2020-09-27T12:30Z	0.174	false
2020-09-27T12:15Z	0.174	false
2020-09-27T12:00Z	0.173	false
2020-09-27T11:45Z	0.173	false
2020-09-27T11:30Z	0.173	false
2020-09-27T11:15Z	0.173	false
2020-09-27T11:00Z	0.173	false
2020-09-27T10:45Z	0.174	false
2020-09-27T10:30Z	0.173	false
2020-09-27T10:15Z	0.174	false
2020-09-27T10:00Z	0.174	false
2020-09-27T09:45Z	0.174	false
2020-09-27T09:30Z	0.174	false
2020-09-27T09:15Z	0.174	false
2020-09-27T09:00Z	0.174	false
2020-09-27T08:45Z	0.174	false
2020-09-27T08:30Z	0.174	false
2020-09-27T08:15Z	0.174	false
2020-09-27T08:00Z	0.174	false
2020-09-27T07:45Z	0.174	false
2020-09-27T07:30Z	0.174	false
2020-09-27T07:15Z	0.175	false
2020-09-27T07:00Z	0.175	false
2020-09-27T06:45Z	0.175	false
2020-09-27T06:30Z	0.175	false
2020-09-27T06:15Z	0.175	false
2020-09-27T06:00Z	0.175	false
2020-09-27T05:45Z	0.175	false
2020-09-27T05:30Z	0.175	false
2020-09-27T05:15Z	0.175	false
2020-09-27T05:00Z	0.175	false
2020-09-27T04:45Z	0.175	false
2020-09-27T04:30Z	0.175	false
2020-09-27T04:15Z	0.175	false
2020-09-27T04:00Z	0.175	false
2020-09-27T03:45Z	0.176	false
2020-09-27T03:30Z	0.176	false
2020-09-27T03:15Z	0.176	false
2020-09-27T03:00Z	0.176	false
2020-09-27T02:45Z	0.176	false
2020-09-27T02:30Z	0.176	false
2020-09-27T02:15Z	0.176	false
2020-09-27T02:00Z	0.176	false
2020-09-27T01:45Z	0.177	false
2020-09-27T01:30Z	0.177	false
2020-09-27T01:15Z	0.177	false
2020-09-27T01:00Z	0.176	false
2020-09-27T00:45Z	0.177	false
2020-09-27T00:30Z	0.177	false
2020-09-27T00:15Z	0.177	false
2020-09-27T00:00Z	0.176	false
2020-09-26T23:45Z	0.177	false
2020-09-26T23:30Z	0.177	false
2020-09-26T23:15Z	0.177	false
2020-09-26T23:00Z	0.177	false
2020-09-26T22:45Z	0.177	false
2020-09-26T22:30Z	0.177	false
2020-09-26T22:15Z	0.177	false
2020-09-26T22:00Z	0.178	false
2020-09-26T21:45Z	0.177	false
2020-09-26T21:30Z	0.177	false
2020-09-26T21:15Z	0.178	false
2020-09-26T21:00Z	0.178	false
2020-09-26T20:45Z	0.178	false
2020-09-26T20:30Z	0.178	false
2020-09-26T20:15Z	0.177	false
2020-09-26T20:00Z	0.178	false
2020-09-26T19:45Z	0.177	false
2020-09-26T19:30Z	0.177	false
2020-09-26T19:15Z	0.178	false
2020-09-26T19:00Z	0.177	false
2020-09-26T18:45Z	0.178	false
2020-09-26T18:30Z	0.177	false
2020-09-26T18:15Z	0.177	false
2020-09-26T18:00Z	0.177	false
2020-09-26T17:45Z	0.177	false
2020-09-26T17:30Z	0.177	false
2020-09-26T17:15Z	0.177	false
2020-09-26T17:00Z	0.176	false
2020-09-26T16:45Z	0.177	false
2020-09-26T16:30Z	0.176	false
2020-09-26T16:15Z	0.176	false
2020-09-26T16:00Z	0.176	false
2020-09-26T15:45Z	0.176	false
2020-09-26T15:30Z	0.176	false
2020-09-26T15:15Z	0.176	false
2020-09-26T15:00Z	0.176	false
2020-09-26T14:45Z	0.176	false
2020-09-26T14:30Z	0.176	false
2020-09-26T14:15Z	0.176	false
2020-09-26T14:00Z	0.176	false
2020-09-26T13:45Z	0.176	false
2020-09-26T13:30Z	0.177	false
2020-09-26T13:15Z	0.176	false
2020-09-26T13:00Z	0.176	false
2020-09-26T12:45Z	0.176	false
2020-09-26T12:30Z	0.177	false
2020-09-26T12:15Z	0.176	false
2020-09-26T12:00Z	0.176	false
2020-09-26T11:45Z	0.176	false
2020-09-26T11:30Z	0.176	false
2020-09-26T11:15Z	0.176	false
2020-09-26T11:00Z	0.177	false
2020-09-26T10:45Z	0.177	false
2020-09-26T10:30Z	0.177	false
2020-09-26T10:15Z	0.177	false
2020-09-26T10:00Z	0.177	false
2020-09-26T09:45Z	0.177	false
2020-09-26T09:30Z	0.177	false
2020-09-26T09:15Z	0.177	false
2020-09-26T09:00Z	0.178	false
2020-09-26T08:45Z	0.178	false
2020-09-26T08:30Z	0.178	false
2020-09-26T08:15Z	0.178	false
2020-09-26T08:00Z	0.178	false
2020-09-26T07:45Z	0.178	false
2020-09-26T07:30Z	0.178	false
2020-09-26T07:15Z	0.179	false
2020-09-26T07:00Z	0.179	false
2020-09-26T06:45Z	0.178	false
2020-09-26T06:30Z	0.179	false
2020-09-26T06:15Z	0.179	false
2020-09-26T06:00Z	0.179	false
2020-09-26T05:45Z	0.179	false
2020-09-26T05:30Z	0.18	false
2020-09-26T05:15Z	0.179	false
2020-09-26T05:00Z	0.179	false
2020-09-26T04:45Z	0.179	false
2020-09-26T04:30Z	0.18	false
2020-09-26T04:15Z	0.179	false
2020-09-26T04:00Z	0.18	false
2020-09-26T03:45Z	0.18	false
2020-09-26T03:30Z	0.18	false
2020-09-26T03:15Z	0.18	false
2020-09-26T03:00Z	0.181	false
2020-09-26T02:45Z	0.181	false
2020-09-26T02:30Z	0.182	false
2020-09-26T02:15Z	0.182	false
2020-09-26T02:00Z	0.182	false
2020-09-26T01:45Z	0.182	false
2020-09-26T01:30Z	0.183	false
2020-09-26T01:15Z	0.183	false
2020-09-26T01:00Z	0.183	false
2020-09-26T00:45Z	0.183	false
2020-09-26T00:30Z	0.183	false
2020-09-26T00:15Z	0.183	false
2020-09-26T00:00Z	0.183	false
2020-09-25T23:45Z	0.183	false
2020-09-25T23:30Z	0.183	false
2020-09-25T23:15Z	0.183	false
2020-09-25T23:00Z	0.183	false
2020-09-25T22:45Z	0.184	false
2020-09-25T22:30Z	0.184	false
2020-09-25T22:15Z	0.184	false
2020-09-25T22:00Z	0.183	false
2020-09-25T21:45Z	0.184	false
2020-09-25T21:30Z	0.184	false
2020-09-25T21:15Z	0.183	false
2020-09-25T21:00Z	0.184	false
2020-09-25T20:45Z	0.184	false
2020-09-25T20:30Z	0.184	false
2020-09-25T20:15Z	0.183	false
2020-09-25T20:00Z	0.184	false
2020-09-25T19:45Z	0.184	false
2020-09-25T19:30Z	0.185	false
2020-09-25T19:15Z	0.186	false
2020-09-25T19:00Z	0.187	false
2020-09-25T18:45Z	0.187	false
2020-09-25T18:30Z	0.189	false
2020-09-25T18:15Z	0.19	false
2020-09-25T18:00Z	0.19	false
2020-09-25T17:45Z	0.191	false
2020-09-25T17:30Z	0.193	false
2020-09-25T17:15Z	0.193	false
2020-09-25T17:00Z	0.195	false
2020-09-25T16:45Z	0.198	false
2020-09-25T16:30Z	0.199	false
2020-09-25T16:15Z	0.202	false
2020-09-25T16:00Z	0.204	false
2020-09-25T15:45Z	0.206	false
2020-09-25T15:30Z	0.207	false
2020-09-25T15:15Z	0.209	false
2020-09-25T15:00Z	0.211	false
2020-09-25T14:45Z	0.209	false
2020-09-25T14:30Z	0.209	false
2020-09-25T14:15Z	0.207	false
2020-09-25T14:00Z	0.204	false
2020-09-25T13:45Z	0.203	false
2020-09-25T13:30Z	0.202	false
2020-09-25T13:15Z	0.201	false
2020-09-25T13:00Z	0.201	false
2020-09-25T12:45Z	0.2	false
2020-09-25T12:30Z	0.199	false
2020-09-25T12:15Z	0.198	false
2020-09-25T12:00Z	0.199	false
2020-09-25T11:45Z	0.199	false
2020-09-25T11:30Z	0.199	false
2020-09-25T11:15Z	0.201	false
2020-09-25T11:00Z	0.2	false
2020-09-25T10:45Z	0.201	false
2020-09-25T10:30Z	0.201	false
2020-09-25T10:15Z	0.2	false
2020-09-25T10:00Z	0.201	false
2020-09-25T09:45Z	0.201	false
2020-09-25T09:30Z	0.199	false
2020-09-25T09:15Z	0.198	false
2020-09-25T09:00Z	0.198	false
2020-09-25T08:45Z	0.198	false
2020-09-25T08:30Z	0.198	false
2020-09-25T08:15Z	0.197	false
2020-09-25T08:00Z	0.196	false
2020-09-25T07:45Z	0.196	false
2020-09-25T07:30Z	0.197	false
2020-09-25T07:15Z	0.197	false
2020-09-25T07:00Z	0.197	false
2020-09-25T06:45Z	0.198	false
2020-09-25T06:30Z	0.197	false
2020-09-25T06:15Z	0.198	false
2020-09-25T06:00Z	0.199	false
2020-09-25T05:45Z	0.199	false
2020-09-25T05:30Z	0.199	false
2020-09-25T05:15Z	0.2	false
2020-09-25T05:00Z	0.201	false
2020-09-25T04:45Z	0.201	false
2020-09-25T04:30Z	0.202	false
2020-09-25T04:15Z	0.202	false
2020-09-25T04:00Z	0.203	false
2020-09-25T03:45Z	0.204	false
2020-09-25T03:30Z	0.204	false
2020-09-25T03:15Z	0.204	false
2020-09-25T03:00Z	0.205	false
2020-09-25T02:45Z	0.206	false
2020-09-25T02:30Z	0.207	false
2020-09-25T02:15Z	0.207	false
2020-09-25T02:00Z	0.208	false
2020-09-25T01:45Z	0.209	false
2020-09-25T01:30Z	0.209	false
2020-09-25T01:15Z	0.21	false
2020-09-25T01:00Z	0.211	false
2020-09-25T00:45Z	0.211	false
2020-09-25T00:30Z	0.212	false
2020-09-25T00:15Z	0.213	false
2020-09-25T00:00Z	0.214	false
2020-09-24T23:45Z	0.214	false
2020-09-24T23:30Z	0.216	false
2020-09-24T23:15Z	0.216	false
2020-09-24T23:00Z	0.218	false
2020-09-24T22:45Z	0.218	false
2020-09-24T22:30Z	0.22	false
2020-09-24T22:15Z	0.222	false
2020-09-24T22:00Z	0.224	false
2020-09-24T21:45Z	0.226	false
2020-09-24T21:30Z	0.229	false
2020-09-24T21:15Z	0.231	false
2020-09-24T21:00Z	0.234	false
2020-09-24T20:45Z	0.237	false
2020-09-24T20:30Z	0.241	false
2020-09-24T20:15Z	0.244	false
2020-09-24T20:00Z	0.248	false
2020-09-24T19:45Z	0.249	false
2020-09-24T19:30Z	0.248	false
2020-09-24T19:15Z	0.245	false
2020-09-24T19:00Z	0.239	false
2020-09-24T18:45Z	0.234	false
2020-09-24T18:30Z	0.233	false
2020-09-24T18:15Z	0.235	false
2020-09-24T18:00Z	0.238	false
2020-09-24T17:45Z	0.241	false
2020-09-24T17:30Z	0.243	false
2020-09-24T17:15Z	0.244	false
2020-09-24T17:00Z	0.247	false
2020-09-24T16:45Z	0.248	false
2020-09-24T16:30Z	0.248	false
2020-09-24T16:15Z	0.248	false
2020-09-24T16:00Z	0.247	false
2020-09-24T15:45Z	0.246	false
2020-09-24T15:30Z	0.246	false
2020-09-24T15:15Z	0.248	false
2020-09-24T15:00Z	0.25	false
2020-09-24T14:45Z	0.25	false
2020-09-24T14:30Z	0.25	false
2020-09-24T14:15Z	0.252	false
2020-09-24T14:00Z	0.253	false
2020-09-24T13:45Z	0.252	false
2020-09-24T13:30Z	0.257	false
2020-09-24T13:15Z	0.254	false
2020-09-24T13:00Z	0.25	false
2020-09-24T12:45Z	0.254	false
2020-09-24T12:30Z	0.259	false
2020-09-24T12:15Z	0.265	false
2020-09-24T12:00Z	0.271	false
2020-09-24T11:45Z	0.277	false
2020-09-24T11:30Z	0.285	false
2020-09-24T11:15Z	0.292	false
2020-09-24T11:00Z	0.3	false
2020-09-24T10:45Z	0.307	false
2020-09-24T10:30Z	0.312	false
2020-09-24T10:15Z	0.315	false
2020-09-24T10:00Z	0.318	false
2020-09-24T09:45Z	0.32	false
2020-09-24T09:30Z	0.323	false
2020-09-24T09:15Z	0.326	false
2020-09-24T09:00Z	0.326	false
2020-09-24T08:45Z	0.322	false
2020-09-24T08:30Z	0.315	false
2020-09-24T08:15Z	0.314	false
2020-09-24T08:00Z	0.322	false
2020-09-24T07:45Z	0.333	false
2020-09-24T07:30Z	0.347	false
2020-09-24T07:15Z	0.356	false
2020-09-24T07:00Z	0.36	false
2020-09-24T06:45Z	0.353	false
2020-09-24T06:30Z	0.338	false
2020-09-24T06:15Z	0.321	false
2020-09-24T06:00Z	0.302	false
2020-09-24T05:45Z	0.289	false
2020-09-24T05:30Z	0.286	false
2020-09-24T05:15Z	0.274	false
2020-09-24T05:00Z	0.244	false
2020-09-24T04:45Z	0.246	false
2020-09-24T04:30Z	0.249	false
2020-09-24T04:15Z	0.252	false
2020-09-24T04:00Z	0.257	false
2020-09-24T03:45Z	0.262	false
2020-09-24T03:30Z	0.267	false
2020-09-24T03:15Z	0.273	false
2020-09-24T03:00Z	0.28	false
2020-09-24T02:45Z	0.285	false
2020-09-24T02:30Z	0.291	false
2020-09-24T02:15Z	0.298	false
2020-09-24T02:00Z	0.307	false
2020-09-24T01:45Z	0.315	false
2020-09-24T01:30Z	0.326	false
2020-09-24T01:15Z	0.336	false
2020-09-24T01:00Z	0.35	false
2020-09-24T00:45Z	0.365	false
2020-09-24T00:30Z	0.382	false
2020-09-24T00:15Z	0.399	false
2020-09-24T00:00Z	0.42	false
2020-09-23T23:45Z	0.437	false
2020-09-23T23:30Z	0.455	false
2020-09-23T23:15Z	0.469	false
2020-09-23T23:00Z	0.484	false
2020-09-23T22:45Z	0.497	false
2020-09-23T22:30Z	0.517	false
2020-09-23T22:15Z	0.536	false
2020-09-23T22:00Z	0.557	false
2020-09-23T21:45Z	0.573	false
2020-09-23T21:30Z	0.591	false
2020-09-23T21:15Z	0.607	false
2020-09-23T21:00Z	0.632	false
2020-09-23T20:45Z	0.654	false
2020-09-23T20:30Z	0.668	false
2020-09-23T20:15Z	0.659	false
2020-09-23T20:00Z	0.627	false
2020-09-23T19:45Z	0.602	false
2020-09-23T19:30Z	0.578	false
2020-09-23T19:15Z	0.556	false
2020-09-23T19:00Z	0.491	false
2020-09-23T18:45Z	0.501	false
2020-09-23T18:30Z	0.524	false
2020-09-23T18:15Z	0.551	false
2020-09-23T18:00Z	0.585	false
2020-09-23T17:45Z	0.603	false
2020-09-23T17:30Z	0.591	false
2020-09-23T17:15Z	0.53	false
2020-09-23T17:00Z	0.492	false
2020-09-23T16:45Z	0.497	false
2020-09-23T16:30Z	0.538	false
2020-09-23T16:15Z	0.507	false
2020-09-23T16:00Z	0.53	false
2020-09-23T15:45Z	0.515	false
2020-09-23T15:30Z	0.398	false
2020-09-23T15:15Z	0.254	false
2020-09-23T15:00Z	0.258	false
2020-09-23T14:45Z	0.278	false
2020-09-23T14:30Z	0.216	false
2020-09-23T14:15Z	0.207	false
2020-09-23T14:00Z	0.209	false
2020-09-23T13:45Z	0.211	false
2020-09-23T13:30Z	0.215	false
2020-09-23T13:15Z	0.218	false
2020-09-23T13:00Z	0.221	false
2020-09-23T12:45Z	0.225	false
2020-09-23T12:30Z	0.228	false
2020-09-23T12:15Z	0.23	false
2020-09-23T12:00Z	0.234	false
2020-09-23T11:45Z	0.237	false
2020-09-23T11:30Z	0.24	false
2020-09-23T11:15Z	0.24	false
2020-09-23T11:00Z	0.239	false
2020-09-23T10:45Z	0.234	false
2020-09-23T10:30Z	0.228	false
2020-09-23T10:15Z	0.226	false
2020-09-23T10:00Z	0.228	false
2020-09-23T09:45Z	0.231	false
2020-09-23T09:30Z	0.233	false
2020-09-23T09:15Z	0.234	false
2020-09-23T09:00Z	0.235	false
2020-09-23T08:45Z	0.234	false
2020-09-23T08:30Z	0.235	false
2020-09-23T08:15Z	0.24	false
2020-09-23T08:00Z	0.245	false
2020-09-23T07:45Z	0.25	false
2020-09-23T07:30Z	0.252	false
2020-09-23T07:15Z	0.249	false
2020-09-23T07:00Z	0.24	false
2020-09-23T06:45Z	0.237	false
2020-09-23T06:30Z	0.242	false
2020-09-23T06:15Z	0.24	false
2020-09-23T06:00Z	0.227	false
2020-09-23T05:45Z	0.222	false
2020-09-23T05:30Z	0.218	false
2020-09-23T05:15Z	0.199	false
2020-09-23T05:00Z	0.199	false
2020-09-23T04:45Z	0.206	false

Forecast data

Key information

• Station name: Ruislip
• Station ID: 7005
• River name: River Pinn
• Typical range: 0.14m to 1.20m
• 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
• Check the long term flood risk for an area in England.

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