River level River Thames at Boulters Lock (downstream data)

Check for flood warnings in this area

Latest recorded level 2.41m at 5:15am Monday 21 September 2020.

View upstream data for this station

Why are there 2 sets of data for this station?

Some monitoring stations are located near to a man-made structure which affects the river's flow characteristics, for example a weir, or lock. For these stations, we provide river levels from both the upstream and downstream sides of the structure.

River levels at this location in the last 5 days

Now
▼

• Measured level
• When the water level reaches 3.51m here, minor flooding is possible in this area
• Highest recorded level. Hide
• Show highest recorded level

You're missing out. A graph should be visible here.
Upgrade your browser to see and use all the features of this service.

You're missing out. A graph should be visible here.

Javascript must be enabled.

Observed data

DateTime	Value	Error
2020-09-21T04:15Z	2.41	false
2020-09-21T04:00Z	2.41	false
2020-09-21T03:45Z	2.41	false
2020-09-21T03:30Z	2.409	false
2020-09-21T03:15Z	2.409	false
2020-09-21T03:00Z	2.41	false
2020-09-21T02:45Z	2.409	false
2020-09-21T02:30Z	2.409	false
2020-09-21T02:15Z	2.41	false
2020-09-21T02:00Z	2.409	false
2020-09-21T01:45Z	2.409	false
2020-09-21T01:30Z	2.411	false
2020-09-21T01:15Z	2.409	false
2020-09-21T01:00Z	2.411	false
2020-09-21T00:45Z	2.411	false
2020-09-21T00:30Z	2.412	false
2020-09-21T00:15Z	2.412	false
2020-09-21T00:00Z	2.413	false
2020-09-20T23:45Z	2.413	false
2020-09-20T23:30Z	2.414	false
2020-09-20T23:15Z	2.413	false
2020-09-20T23:00Z	2.414	false
2020-09-20T22:45Z	2.415	false
2020-09-20T22:30Z	2.415	false
2020-09-20T22:15Z	2.416	false
2020-09-20T22:00Z	2.415	false
2020-09-20T21:45Z	2.416	false
2020-09-20T21:30Z	2.416	false
2020-09-20T21:15Z	2.417	false
2020-09-20T21:00Z	2.416	false
2020-09-20T20:45Z	2.417	false
2020-09-20T20:30Z	2.418	false
2020-09-20T20:15Z	2.417	false
2020-09-20T20:00Z	2.417	false
2020-09-20T19:45Z	2.418	false
2020-09-20T19:30Z	2.417	false
2020-09-20T19:15Z	2.421	false
2020-09-20T19:00Z	2.416	false
2020-09-20T18:45Z	2.416	false
2020-09-20T18:30Z	2.42	false
2020-09-20T18:15Z	2.421	false
2020-09-20T18:00Z	2.416	false
2020-09-20T17:45Z	2.418	false
2020-09-20T17:30Z	2.415	false
2020-09-20T17:15Z	2.415	false
2020-09-20T17:00Z	2.415	false
2020-09-20T16:45Z	2.419	false
2020-09-20T16:30Z	2.413	false
2020-09-20T16:15Z	2.417	false
2020-09-20T16:00Z	2.419	false
2020-09-20T15:45Z	2.412	false
2020-09-20T15:30Z	2.48	false
2020-09-20T15:15Z	2.417	false
2020-09-20T15:00Z	2.424	false
2020-09-20T14:45Z	2.419	false
2020-09-20T14:30Z	2.425	false
2020-09-20T14:15Z	2.416	false
2020-09-20T14:00Z	2.435	false
2020-09-20T13:45Z	2.413	false
2020-09-20T13:30Z	2.432	false
2020-09-20T13:15Z	2.413	false
2020-09-20T13:00Z	2.421	false
2020-09-20T12:45Z	2.419	false
2020-09-20T12:30Z	2.424	false
2020-09-20T12:15Z	2.422	false
2020-09-20T12:00Z	2.421	false
2020-09-20T11:45Z	2.409	false
2020-09-20T11:30Z	2.419	false
2020-09-20T11:15Z	2.423	false
2020-09-20T11:00Z	2.429	false
2020-09-20T10:45Z	2.426	false
2020-09-20T10:30Z	2.423	false
2020-09-20T10:15Z	2.423	false
2020-09-20T10:00Z	2.422	false
2020-09-20T09:45Z	2.422	false
2020-09-20T09:30Z	2.424	false
2020-09-20T09:15Z	2.444	false
2020-09-20T09:00Z	2.437	false
2020-09-20T08:45Z	2.427	false
2020-09-20T08:30Z	2.426	false
2020-09-20T08:15Z	2.424	false
2020-09-20T08:00Z	2.429	false
2020-09-20T07:45Z	2.422	false
2020-09-20T07:30Z	2.427	false
2020-09-20T07:15Z	2.424	false
2020-09-20T07:00Z	2.43	false
2020-09-20T06:45Z	2.429	false
2020-09-20T06:30Z	2.429	false
2020-09-20T06:15Z	2.43	false
2020-09-20T06:00Z	2.43	false
2020-09-20T05:45Z	2.431	false
2020-09-20T05:30Z	2.43	false
2020-09-20T05:15Z	2.431	false
2020-09-20T05:00Z	2.43	false
2020-09-20T04:45Z	2.431	false
2020-09-20T04:30Z	2.431	false
2020-09-20T04:15Z	2.43	false
2020-09-20T04:00Z	2.43	false
2020-09-20T03:45Z	2.43	false
2020-09-20T03:30Z	2.429	false
2020-09-20T03:15Z	2.43	false
2020-09-20T03:00Z	2.43	false
2020-09-20T02:45Z	2.43	false
2020-09-20T02:30Z	2.43	false
2020-09-20T02:15Z	2.43	false
2020-09-20T02:00Z	2.429	false
2020-09-20T01:45Z	2.429	false
2020-09-20T01:30Z	2.429	false
2020-09-20T01:15Z	2.429	false
2020-09-20T01:00Z	2.429	false
2020-09-20T00:45Z	2.429	false
2020-09-20T00:30Z	2.429	false
2020-09-20T00:15Z	2.427	false
2020-09-20T00:00Z	2.428	false
2020-09-19T23:45Z	2.427	false
2020-09-19T23:30Z	2.428	false
2020-09-19T23:15Z	2.428	false
2020-09-19T23:00Z	2.428	false
2020-09-19T22:45Z	2.429	false
2020-09-19T22:30Z	2.427	false
2020-09-19T22:15Z	2.428	false
2020-09-19T22:00Z	2.429	false
2020-09-19T21:45Z	2.428	false
2020-09-19T21:30Z	2.431	false
2020-09-19T21:15Z	2.426	false
2020-09-19T21:00Z	2.438	false
2020-09-19T20:45Z	2.427	false
2020-09-19T20:30Z	2.427	false
2020-09-19T20:15Z	2.424	false
2020-09-19T20:00Z	2.427	false
2020-09-19T19:45Z	2.425	false
2020-09-19T19:30Z	2.426	false
2020-09-19T19:15Z	2.422	false
2020-09-19T19:00Z	2.43	false
2020-09-19T18:45Z	2.427	false
2020-09-19T18:30Z	2.43	false
2020-09-19T18:15Z	2.423	false
2020-09-19T18:00Z	2.421	false
2020-09-19T17:45Z	2.423	false
2020-09-19T17:30Z	2.426	false
2020-09-19T17:15Z	2.423	false
2020-09-19T17:00Z	2.427	false
2020-09-19T16:45Z	2.428	false
2020-09-19T16:30Z	2.429	false
2020-09-19T16:15Z	2.42	false
2020-09-19T16:00Z	2.448	false
2020-09-19T15:45Z	2.42	false
2020-09-19T15:30Z	2.426	false
2020-09-19T15:15Z	2.417	false
2020-09-19T15:00Z	2.442	false
2020-09-19T14:45Z	2.42	false
2020-09-19T14:30Z	2.403	false
2020-09-19T14:15Z	2.414	false
2020-09-19T14:00Z	2.42	false
2020-09-19T13:45Z	2.436	false
2020-09-19T13:30Z	2.426	false
2020-09-19T13:15Z	2.42	false
2020-09-19T13:00Z	2.439	false
2020-09-19T12:45Z	2.433	false
2020-09-19T12:30Z	2.429	false
2020-09-19T12:15Z	2.434	false
2020-09-19T12:00Z	2.433	false
2020-09-19T11:45Z	2.395	false
2020-09-19T11:30Z	2.43	false
2020-09-19T11:15Z	2.437	false
2020-09-19T11:00Z	2.425	false
2020-09-19T10:45Z	2.436	false
2020-09-19T10:30Z	2.434	false
2020-09-19T10:15Z	2.423	false
2020-09-19T10:00Z	2.437	false
2020-09-19T09:45Z	2.429	false
2020-09-19T09:30Z	2.521	false
2020-09-19T09:15Z	2.426	false
2020-09-19T09:00Z	2.424	false
2020-09-19T08:45Z	2.414	false
2020-09-19T08:30Z	2.434	false
2020-09-19T08:15Z	2.447	false
2020-09-19T08:00Z	2.43	false
2020-09-19T07:45Z	2.429	false
2020-09-19T07:30Z	2.432	false
2020-09-19T07:15Z	2.433	false
2020-09-19T07:00Z	2.433	false
2020-09-19T06:45Z	2.432	false
2020-09-19T06:30Z	2.433	false
2020-09-19T06:15Z	2.432	false
2020-09-19T06:00Z	2.433	false
2020-09-19T05:45Z	2.432	false
2020-09-19T05:30Z	2.435	false
2020-09-19T05:15Z	2.437	false
2020-09-19T05:00Z	2.434	false
2020-09-19T04:45Z	2.434	false
2020-09-19T04:30Z	2.432	false
2020-09-19T04:15Z	2.435	false
2020-09-19T04:00Z	2.435	false
2020-09-19T03:45Z	2.435	false
2020-09-19T03:30Z	2.435	false
2020-09-19T03:15Z	2.435	false
2020-09-19T03:00Z	2.434	false
2020-09-19T02:45Z	2.434	false
2020-09-19T02:30Z	2.435	false
2020-09-19T02:15Z	2.435	false
2020-09-19T02:00Z	2.433	false
2020-09-19T01:45Z	2.434	false
2020-09-19T01:30Z	2.433	false
2020-09-19T01:15Z	2.435	false
2020-09-19T01:00Z	2.433	false
2020-09-19T00:45Z	2.431	false
2020-09-19T00:30Z	2.431	false
2020-09-19T00:15Z	2.431	false
2020-09-19T00:00Z	2.429	false
2020-09-18T23:45Z	2.431	false
2020-09-18T23:30Z	2.431	false
2020-09-18T23:15Z	2.43	false
2020-09-18T23:00Z	2.428	false
2020-09-18T22:45Z	2.433	false
2020-09-18T22:30Z	2.429	false
2020-09-18T22:15Z	2.429	false
2020-09-18T22:00Z	2.425	false
2020-09-18T21:45Z	2.425	false
2020-09-18T21:30Z	2.424	false
2020-09-18T21:15Z	2.422	false
2020-09-18T21:00Z	2.421	false
2020-09-18T20:45Z	2.42	false
2020-09-18T20:30Z	2.421	false
2020-09-18T20:15Z	2.419	false
2020-09-18T20:00Z	2.417	false
2020-09-18T19:45Z	2.418	false
2020-09-18T19:30Z	2.417	false
2020-09-18T19:15Z	2.414	false
2020-09-18T19:00Z	2.417	false
2020-09-18T18:45Z	2.415	false
2020-09-18T18:30Z	2.421	false
2020-09-18T18:15Z	2.419	false
2020-09-18T18:00Z	2.428	false
2020-09-18T17:45Z	2.425	false
2020-09-18T17:30Z	2.439	false
2020-09-18T17:15Z	2.437	false
2020-09-18T17:00Z	2.425	false
2020-09-18T16:45Z	2.439	false
2020-09-18T16:30Z	2.432	false
2020-09-18T16:15Z	2.424	false
2020-09-18T16:00Z	2.433	false
2020-09-18T15:45Z	2.435	false
2020-09-18T15:30Z	2.437	false
2020-09-18T15:15Z	2.442	false
2020-09-18T15:00Z	2.447	false
2020-09-18T14:45Z	2.444	false
2020-09-18T14:30Z	2.455	false
2020-09-18T14:15Z	2.439	false
2020-09-18T14:00Z	2.435	false
2020-09-18T13:45Z	2.444	false
2020-09-18T13:30Z	2.452	false
2020-09-18T13:15Z	2.449	false
2020-09-18T13:00Z	2.461	false
2020-09-18T12:45Z	2.446	false
2020-09-18T12:30Z	2.44	false
2020-09-18T12:15Z	2.464	false
2020-09-18T12:00Z	2.445	false
2020-09-18T11:45Z	2.458	false
2020-09-18T11:30Z	2.441	false
2020-09-18T11:15Z	2.445	false
2020-09-18T11:00Z	2.461	false
2020-09-18T10:45Z	2.452	false
2020-09-18T10:30Z	2.462	false
2020-09-18T10:15Z	2.523	false
2020-09-18T10:00Z	2.451	false
2020-09-18T09:45Z	2.446	false
2020-09-18T09:30Z	2.449	false
2020-09-18T09:15Z	2.445	false
2020-09-18T09:00Z	2.458	false
2020-09-18T08:45Z	2.448	false
2020-09-18T08:30Z	2.444	false
2020-09-18T08:15Z	2.451	false
2020-09-18T08:00Z	2.444	false
2020-09-18T07:45Z	2.445	false
2020-09-18T07:30Z	2.446	false
2020-09-18T07:15Z	2.444	false
2020-09-18T07:00Z	2.446	false
2020-09-18T06:45Z	2.447	false
2020-09-18T06:30Z	2.446	false
2020-09-18T06:15Z	2.447	false
2020-09-18T06:00Z	2.447	false
2020-09-18T05:45Z	2.446	false
2020-09-18T05:30Z	2.447	false
2020-09-18T05:15Z	2.446	false
2020-09-18T05:00Z	2.447	false
2020-09-18T04:45Z	2.448	false
2020-09-18T04:30Z	2.447	false
2020-09-18T04:15Z	2.447	false
2020-09-18T04:00Z	2.447	false
2020-09-18T03:45Z	2.447	false
2020-09-18T03:30Z	2.447	false
2020-09-18T03:15Z	2.447	false
2020-09-18T03:00Z	2.446	false
2020-09-18T02:45Z	2.446	false
2020-09-18T02:30Z	2.446	false
2020-09-18T02:15Z	2.447	false
2020-09-18T02:00Z	2.446	false
2020-09-18T01:45Z	2.446	false
2020-09-18T01:30Z	2.446	false
2020-09-18T01:15Z	2.446	false
2020-09-18T01:00Z	2.445	false
2020-09-18T00:45Z	2.446	false
2020-09-18T00:30Z	2.445	false
2020-09-18T00:15Z	2.445	false
2020-09-18T00:00Z	2.445	false
2020-09-17T23:45Z	2.445	false
2020-09-17T23:30Z	2.444	false
2020-09-17T23:15Z	2.444	false
2020-09-17T23:00Z	2.443	false
2020-09-17T22:45Z	2.443	false
2020-09-17T22:30Z	2.442	false
2020-09-17T22:15Z	2.441	false
2020-09-17T22:00Z	2.44	false
2020-09-17T21:45Z	2.44	false
2020-09-17T21:30Z	2.439	false
2020-09-17T21:15Z	2.437	false
2020-09-17T21:00Z	2.436	false
2020-09-17T20:45Z	2.435	false
2020-09-17T20:30Z	2.434	false
2020-09-17T20:15Z	2.433	false
2020-09-17T20:00Z	2.432	false
2020-09-17T19:45Z	2.429	false
2020-09-17T19:30Z	2.422	false
2020-09-17T19:15Z	2.422	false
2020-09-17T19:00Z	2.428	false
2020-09-17T18:45Z	2.414	false
2020-09-17T18:30Z	2.395	false
2020-09-17T18:15Z	2.409	false
2020-09-17T18:00Z	2.413	false
2020-09-17T17:45Z	2.406	false
2020-09-17T17:30Z	2.406	false
2020-09-17T17:15Z	2.408	false
2020-09-17T17:00Z	2.418	false
2020-09-17T16:45Z	2.401	false
2020-09-17T16:30Z	2.407	false
2020-09-17T16:15Z	2.399	false
2020-09-17T16:00Z	2.441	false
2020-09-17T15:45Z	2.412	false
2020-09-17T15:30Z	2.399	false
2020-09-17T15:15Z	2.402	false
2020-09-17T15:00Z	2.395	false
2020-09-17T14:45Z	2.439	false
2020-09-17T14:30Z	2.412	false
2020-09-17T14:15Z	2.403	false
2020-09-17T14:00Z	2.411	false
2020-09-17T13:45Z	2.413	false
2020-09-17T13:30Z	2.42	false
2020-09-17T13:15Z	2.421	false
2020-09-17T13:00Z	2.401	false
2020-09-17T12:45Z	2.397	false
2020-09-17T12:30Z	2.394	false
2020-09-17T12:15Z	2.405	false
2020-09-17T12:00Z	2.4	false
2020-09-17T11:45Z	2.413	false
2020-09-17T11:30Z	2.404	false
2020-09-17T11:15Z	2.416	false
2020-09-17T11:00Z	2.405	false
2020-09-17T10:45Z	2.4	false
2020-09-17T10:30Z	2.412	false
2020-09-17T10:15Z	2.408	false
2020-09-17T10:00Z	2.413	false
2020-09-17T09:45Z	2.409	false
2020-09-17T09:30Z	2.404	false
2020-09-17T09:15Z	2.405	false
2020-09-17T09:00Z	2.403	false
2020-09-17T08:45Z	2.416	false
2020-09-17T08:30Z	2.409	false
2020-09-17T08:15Z	2.409	false
2020-09-17T08:00Z	2.441	false
2020-09-17T07:45Z	2.409	false
2020-09-17T07:30Z	2.408	false
2020-09-17T07:15Z	2.41	false
2020-09-17T07:00Z	2.41	false
2020-09-17T06:45Z	2.41	false
2020-09-17T06:30Z	2.411	false
2020-09-17T06:15Z	2.411	false
2020-09-17T06:00Z	2.412	false
2020-09-17T05:45Z	2.412	false
2020-09-17T05:30Z	2.413	false
2020-09-17T05:15Z	2.413	false
2020-09-17T05:00Z	2.413	false
2020-09-17T04:45Z	2.415	false
2020-09-17T04:30Z	2.416	false
2020-09-17T04:15Z	2.415	false
2020-09-17T04:00Z	2.416	false
2020-09-17T03:45Z	2.417	false
2020-09-17T03:30Z	2.418	false
2020-09-17T03:15Z	2.418	false
2020-09-17T03:00Z	2.419	false
2020-09-17T02:45Z	2.419	false
2020-09-17T02:30Z	2.422	false
2020-09-17T02:15Z	2.421	false
2020-09-17T02:00Z	2.421	false
2020-09-17T01:45Z	2.422	false
2020-09-17T01:30Z	2.422	false
2020-09-17T01:15Z	2.424	false
2020-09-17T01:00Z	2.425	false
2020-09-17T00:45Z	2.426	false
2020-09-17T00:30Z	2.426	false
2020-09-17T00:15Z	2.425	false
2020-09-17T00:00Z	2.426	false
2020-09-16T23:45Z	2.426	false
2020-09-16T23:30Z	2.427	false
2020-09-16T23:15Z	2.427	false
2020-09-16T23:00Z	2.427	false
2020-09-16T22:45Z	2.429	false
2020-09-16T22:30Z	2.426	false
2020-09-16T22:15Z	2.429	false
2020-09-16T22:00Z	2.428	false
2020-09-16T21:45Z	2.426	false
2020-09-16T21:30Z	2.427	false
2020-09-16T21:15Z	2.427	false
2020-09-16T21:00Z	2.426	false
2020-09-16T20:45Z	2.428	false
2020-09-16T20:30Z	2.425	false
2020-09-16T20:15Z	2.428	false
2020-09-16T20:00Z	2.429	false
2020-09-16T19:45Z	2.426	false
2020-09-16T19:30Z	2.43	false
2020-09-16T19:15Z	2.426	false
2020-09-16T19:00Z	2.446	false
2020-09-16T18:45Z	2.425	false
2020-09-16T18:30Z	2.424	false
2020-09-16T18:15Z	2.433	false
2020-09-16T18:00Z	2.425	false
2020-09-16T17:45Z	2.426	false
2020-09-16T17:30Z	2.434	false
2020-09-16T17:15Z	2.44	false
2020-09-16T17:00Z	2.435	false
2020-09-16T16:45Z	2.45	false
2020-09-16T16:30Z	2.435	false
2020-09-16T16:15Z	2.454	false
2020-09-16T16:00Z	2.433	false
2020-09-16T15:45Z	2.44	false
2020-09-16T15:30Z	2.44	false
2020-09-16T15:15Z	2.443	false
2020-09-16T15:00Z	2.475	false
2020-09-16T14:45Z	2.441	false
2020-09-16T14:30Z	2.44	false
2020-09-16T14:15Z	2.445	false
2020-09-16T14:00Z	2.448	false
2020-09-16T13:45Z	2.444	false
2020-09-16T13:30Z	2.447	false
2020-09-16T13:15Z	2.44	false
2020-09-16T13:00Z	2.445	false
2020-09-16T12:45Z	2.44	false
2020-09-16T12:30Z	2.447	false
2020-09-16T12:15Z	2.438	false
2020-09-16T12:00Z	2.449	false
2020-09-16T11:45Z	2.442	false
2020-09-16T11:30Z	2.446	false
2020-09-16T11:15Z	2.441	false
2020-09-16T11:00Z	2.439	false
2020-09-16T10:45Z	2.467	false
2020-09-16T10:30Z	2.447	false
2020-09-16T10:15Z	2.446	false
2020-09-16T10:00Z	2.438	false
2020-09-16T09:45Z	2.442	false
2020-09-16T09:30Z	2.453	false
2020-09-16T09:15Z	2.446	false
2020-09-16T09:00Z	2.435	false
2020-09-16T08:45Z	2.442	false
2020-09-16T08:30Z	2.444	false
2020-09-16T08:15Z	2.452	false
2020-09-16T08:00Z	2.449	false
2020-09-16T07:45Z	2.445	false
2020-09-16T07:30Z	2.456	false
2020-09-16T07:15Z	2.444	false
2020-09-16T07:00Z	2.445	false
2020-09-16T06:45Z	2.445	false
2020-09-16T06:30Z	2.445	false
2020-09-16T06:15Z	2.445	false
2020-09-16T06:00Z	2.445	false
2020-09-16T05:45Z	2.445	false
2020-09-16T05:30Z	2.445	false
2020-09-16T05:15Z	2.446	false
2020-09-16T05:00Z	2.445	false
2020-09-16T04:45Z	2.446	false
2020-09-16T04:30Z	2.446	false

Forecast data

Key information

• Station name: Boulters Lock (downstream)
• Station ID: 7163
• River name: River Thames
• Typical range: 2.27m to 3.51m
• Highest level on record: 4.70m on 11 December 2000
• Site datum: 18.94mAOD (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.

Share this page

• Twitter
• Facebook
• Email