River level Chertsey Bourne at Chertsey Bourne

Check for flood warnings in this area

Latest recorded level 0.56m at 12:00am Monday 21 September 2020.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 1.06m 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
2020-09-20T23:00Z	0.559	false
2020-09-20T22:45Z	0.559	false
2020-09-20T22:30Z	0.556	false
2020-09-20T22:15Z	0.566	false
2020-09-20T22:00Z	0.582	false
2020-09-20T21:45Z	0.572	false
2020-09-20T21:30Z	0.583	false
2020-09-20T21:15Z	0.599	false
2020-09-20T21:00Z	0.593	false
2020-09-20T20:45Z	0.607	false
2020-09-20T20:30Z	0.607	false
2020-09-20T20:15Z	0.602	false
2020-09-20T20:00Z	0.605	false
2020-09-20T19:45Z	0.606	false
2020-09-20T19:30Z	0.592	false
2020-09-20T19:15Z	0.588	false
2020-09-20T19:00Z	0.605	false
2020-09-20T18:45Z	0.592	false
2020-09-20T18:30Z	0.58	false
2020-09-20T18:15Z	0.57	false
2020-09-20T18:00Z	0.58	false
2020-09-20T17:45Z	0.582	false
2020-09-20T17:30Z	0.559	false
2020-09-20T17:15Z	0.564	false
2020-09-20T17:00Z	0.578	false
2020-09-20T16:45Z	0.573	false
2020-09-20T16:30Z	0.56	false
2020-09-20T16:15Z	0.564	false
2020-09-20T16:00Z	0.568	false
2020-09-20T15:45Z	0.577	false
2020-09-20T15:30Z	0.566	false
2020-09-20T15:15Z	0.567	false
2020-09-20T15:00Z	0.593	false
2020-09-20T14:45Z	0.588	false
2020-09-20T14:30Z	0.595	false
2020-09-20T14:15Z	0.598	false
2020-09-20T14:00Z	0.606	false
2020-09-20T13:45Z	0.615	false
2020-09-20T13:30Z	0.608	false
2020-09-20T13:15Z	0.623	false
2020-09-20T13:00Z	0.623	false
2020-09-20T12:45Z	0.626	false
2020-09-20T12:30Z	0.638	false
2020-09-20T12:15Z	0.66	false
2020-09-20T12:00Z	0.688	false
2020-09-20T11:45Z	0.704	false
2020-09-20T11:30Z	0.679	false
2020-09-20T11:15Z	0.616	false
2020-09-20T11:00Z	0.57	false
2020-09-20T10:45Z	0.566	false
2020-09-20T10:30Z	0.563	false
2020-09-20T10:15Z	0.559	false
2020-09-20T10:00Z	0.556	false
2020-09-20T09:45Z	0.55	false
2020-09-20T09:30Z	0.547	false
2020-09-20T09:15Z	0.551	false
2020-09-20T09:00Z	0.555	false
2020-09-20T08:45Z	0.518	false
2020-09-20T08:30Z	0.509	false
2020-09-20T08:15Z	0.511	false
2020-09-20T08:00Z	0.491	false
2020-09-20T07:45Z	0.459	false
2020-09-20T07:30Z	0.458	false
2020-09-20T07:15Z	0.462	false
2020-09-20T07:00Z	0.437	false
2020-09-20T06:45Z	0.446	false
2020-09-20T06:30Z	0.434	false
2020-09-20T06:15Z	0.447	false
2020-09-20T06:00Z	0.43	false
2020-09-20T05:45Z	0.443	false
2020-09-20T05:30Z	0.428	false
2020-09-20T05:15Z	0.411	false
2020-09-20T05:00Z	0.441	false
2020-09-20T04:45Z	0.429	false
2020-09-20T04:30Z	0.43	false
2020-09-20T04:15Z	0.444	false
2020-09-20T04:00Z	0.429	false
2020-09-20T03:45Z	0.442	false
2020-09-20T03:30Z	0.44	false
2020-09-20T03:15Z	0.429	false
2020-09-20T03:00Z	0.456	false
2020-09-20T02:45Z	0.453	false
2020-09-20T02:30Z	0.445	false
2020-09-20T02:15Z	0.447	false
2020-09-20T02:00Z	0.481	false
2020-09-20T01:45Z	0.469	false
2020-09-20T01:30Z	0.465	false
2020-09-20T01:15Z	0.478	false
2020-09-20T01:00Z	0.513	false
2020-09-20T00:45Z	0.493	false
2020-09-20T00:30Z	0.5	false
2020-09-20T00:15Z	0.517	false
2020-09-20T00:00Z	0.509	false
2020-09-19T23:45Z	0.527	false
2020-09-19T23:30Z	0.516	false
2020-09-19T23:15Z	0.533	false
2020-09-19T23:00Z	0.532	false
2020-09-19T22:45Z	0.552	false
2020-09-19T22:30Z	0.554	false
2020-09-19T22:15Z	0.555	false
2020-09-19T22:00Z	0.557	false
2020-09-19T21:45Z	0.556	false
2020-09-19T21:30Z	0.558	false
2020-09-19T21:15Z	0.563	false
2020-09-19T21:00Z	0.573	false
2020-09-19T20:45Z	0.584	false
2020-09-19T20:30Z	0.579	false
2020-09-19T20:15Z	0.575	false
2020-09-19T20:00Z	0.589	false
2020-09-19T19:45Z	0.587	false
2020-09-19T19:30Z	0.58	false
2020-09-19T19:15Z	0.574	false
2020-09-19T19:00Z	0.574	false
2020-09-19T18:45Z	0.581	false
2020-09-19T18:30Z	0.564	false
2020-09-19T18:15Z	0.563	false
2020-09-19T18:00Z	0.574	false
2020-09-19T17:45Z	0.565	false
2020-09-19T17:30Z	0.553	false
2020-09-19T17:15Z	0.565	false
2020-09-19T17:00Z	0.583	false
2020-09-19T16:45Z	0.568	false
2020-09-19T16:30Z	0.559	false
2020-09-19T16:15Z	0.552	false
2020-09-19T16:00Z	0.587	false
2020-09-19T15:45Z	0.587	false
2020-09-19T15:30Z	0.574	false
2020-09-19T15:15Z	0.575	false
2020-09-19T15:00Z	0.604	false
2020-09-19T14:45Z	0.609	false
2020-09-19T14:30Z	0.617	false
2020-09-19T14:15Z	0.64	false
2020-09-19T14:00Z	0.68	false
2020-09-19T13:45Z	0.708	false
2020-09-19T13:30Z	0.724	false
2020-09-19T13:15Z	0.7	false
2020-09-19T13:00Z	0.651	false
2020-09-19T12:45Z	0.592	false
2020-09-19T12:30Z	0.583	false
2020-09-19T12:15Z	0.583	false
2020-09-19T12:00Z	0.58	false
2020-09-19T11:45Z	0.578	false
2020-09-19T11:30Z	0.578	false
2020-09-19T11:15Z	0.578	false
2020-09-19T11:00Z	0.578	false
2020-09-19T10:45Z	0.577	false
2020-09-19T10:30Z	0.574	false
2020-09-19T10:15Z	0.572	false
2020-09-19T10:00Z	0.569	false
2020-09-19T09:45Z	0.565	false
2020-09-19T09:30Z	0.561	false
2020-09-19T09:15Z	0.558	false
2020-09-19T09:00Z	0.556	false
2020-09-19T08:45Z	0.547	false
2020-09-19T08:30Z	0.535	false
2020-09-19T08:15Z	0.53	false
2020-09-19T08:00Z	0.519	false
2020-09-19T07:45Z	0.493	false
2020-09-19T07:30Z	0.445	false
2020-09-19T07:15Z	0.46	false
2020-09-19T07:00Z	0.442	false
2020-09-19T06:45Z	0.468	false
2020-09-19T06:30Z	0.438	false
2020-09-19T06:15Z	0.434	false
2020-09-19T06:00Z	0.418	false
2020-09-19T05:45Z	0.438	false
2020-09-19T05:30Z	0.438	false
2020-09-19T05:15Z	0.447	false
2020-09-19T05:00Z	0.443	false
2020-09-19T04:45Z	0.424	false
2020-09-19T04:30Z	0.442	false
2020-09-19T04:15Z	0.456	false
2020-09-19T04:00Z	0.459	false
2020-09-19T03:45Z	0.456	false
2020-09-19T03:30Z	0.459	false
2020-09-19T03:15Z	0.468	false
2020-09-19T03:00Z	0.424	false
2020-09-19T02:45Z	0.441	false
2020-09-19T02:30Z	0.464	false
2020-09-19T02:15Z	0.456	false
2020-09-19T02:00Z	0.473	false
2020-09-19T01:45Z	0.479	false
2020-09-19T01:30Z	0.481	false
2020-09-19T01:15Z	0.492	false
2020-09-19T01:00Z	0.488	false
2020-09-19T00:45Z	0.488	false
2020-09-19T00:30Z	0.506	false
2020-09-19T00:15Z	0.535	false
2020-09-19T00:00Z	0.527	false
2020-09-18T23:45Z	0.544	false
2020-09-18T23:30Z	0.541	false
2020-09-18T23:15Z	0.567	false
2020-09-18T23:00Z	0.578	false
2020-09-18T22:45Z	0.581	false
2020-09-18T22:30Z	0.582	false
2020-09-18T22:15Z	0.58	false
2020-09-18T22:00Z	0.581	false
2020-09-18T21:45Z	0.579	false
2020-09-18T21:30Z	0.58	false
2020-09-18T21:15Z	0.582	false
2020-09-18T21:00Z	0.585	false
2020-09-18T20:45Z	0.584	false
2020-09-18T20:30Z	0.583	false
2020-09-18T20:15Z	0.583	false
2020-09-18T20:00Z	0.583	false
2020-09-18T19:45Z	0.581	false
2020-09-18T19:30Z	0.581	false
2020-09-18T19:15Z	0.583	false
2020-09-18T19:00Z	0.583	false
2020-09-18T18:45Z	0.58	false
2020-09-18T18:30Z	0.577	false
2020-09-18T18:15Z	0.576	false
2020-09-18T18:00Z	0.576	false
2020-09-18T17:45Z	0.575	false
2020-09-18T17:30Z	0.576	false
2020-09-18T17:15Z	0.578	false
2020-09-18T17:00Z	0.581	false
2020-09-18T16:45Z	0.58	false
2020-09-18T16:30Z	0.58	false
2020-09-18T16:15Z	0.581	false
2020-09-18T16:00Z	0.582	false
2020-09-18T15:45Z	0.58	false
2020-09-18T15:30Z	0.581	false
2020-09-18T15:15Z	0.583	false
2020-09-18T15:00Z	0.587	false
2020-09-18T14:45Z	0.586	false
2020-09-18T14:30Z	0.586	false
2020-09-18T14:15Z	0.588	false
2020-09-18T14:00Z	0.588	false
2020-09-18T13:45Z	0.585	false
2020-09-18T13:30Z	0.585	false
2020-09-18T13:15Z	0.587	false
2020-09-18T13:00Z	0.588	false
2020-09-18T12:45Z	0.588	false
2020-09-18T12:30Z	0.585	false
2020-09-18T12:15Z	0.67	false
2020-09-18T12:00Z	0.573	false
2020-09-18T11:45Z	0.576	false
2020-09-18T11:30Z	0.584	false
2020-09-18T11:15Z	0.585	false
2020-09-18T11:00Z	0.591	false
2020-09-18T10:45Z	0.592	false
2020-09-18T10:30Z	0.591	false
2020-09-18T10:15Z	0.59	false
2020-09-18T10:00Z	0.588	false
2020-09-18T09:45Z	0.585	false
2020-09-18T09:30Z	0.586	false
2020-09-18T09:15Z	0.588	false
2020-09-18T09:00Z	0.606	false
2020-09-18T08:45Z	0.599	false
2020-09-18T08:30Z	0.585	false
2020-09-18T08:15Z	0.591	false
2020-09-18T08:00Z	0.579	false
2020-09-18T07:45Z	0.564	false
2020-09-18T07:30Z	0.557	false
2020-09-18T07:15Z	0.537	false
2020-09-18T07:00Z	0.506	false
2020-09-18T06:45Z	0.497	false
2020-09-18T06:30Z	0.486	false
2020-09-18T06:15Z	0.456	false
2020-09-18T06:00Z	0.458	false
2020-09-18T05:45Z	0.468	false
2020-09-18T05:30Z	0.452	false
2020-09-18T05:15Z	0.443	false
2020-09-18T05:00Z	0.452	false
2020-09-18T04:45Z	0.457	false
2020-09-18T04:30Z	0.432	false
2020-09-18T04:15Z	0.431	false
2020-09-18T04:00Z	0.451	false
2020-09-18T03:45Z	0.451	false
2020-09-18T03:30Z	0.448	false
2020-09-18T03:15Z	0.445	false
2020-09-18T03:00Z	0.45	false
2020-09-18T02:45Z	0.445	false
2020-09-18T02:30Z	0.461	false
2020-09-18T02:15Z	0.469	false
2020-09-18T02:00Z	0.479	false
2020-09-18T01:45Z	0.491	false
2020-09-18T01:30Z	0.457	false
2020-09-18T01:15Z	0.497	false
2020-09-18T01:00Z	0.496	false
2020-09-18T00:45Z	0.507	false
2020-09-18T00:30Z	0.514	false
2020-09-18T00:15Z	0.511	false
2020-09-18T00:00Z	0.537	false
2020-09-17T23:45Z	0.55	false
2020-09-17T23:30Z	0.549	false
2020-09-17T23:15Z	0.646	false
2020-09-17T23:00Z	0.565	false
2020-09-17T22:45Z	0.565	false
2020-09-17T22:30Z	0.588	false
2020-09-17T22:15Z	0.582	false
2020-09-17T22:00Z	0.588	false
2020-09-17T21:45Z	0.587	false
2020-09-17T21:30Z	0.601	false
2020-09-17T21:15Z	0.598	false
2020-09-17T21:00Z	0.603	false
2020-09-17T20:45Z	0.608	false
2020-09-17T20:30Z	0.61	false
2020-09-17T20:15Z	0.615	false
2020-09-17T20:00Z	0.606	false
2020-09-17T19:45Z	0.609	false
2020-09-17T19:30Z	0.61	false
2020-09-17T19:15Z	0.602	false
2020-09-17T19:00Z	0.613	false
2020-09-17T18:45Z	0.599	false
2020-09-17T18:30Z	0.579	false
2020-09-17T18:15Z	0.56	false
2020-09-17T18:00Z	0.573	false
2020-09-17T17:45Z	0.585	false
2020-09-17T17:30Z	0.568	false
2020-09-17T17:15Z	0.56	false
2020-09-17T17:00Z	0.564	false
2020-09-17T16:45Z	0.561	false
2020-09-17T16:30Z	0.562	false
2020-09-17T16:15Z	0.563	false
2020-09-17T16:00Z	0.565	false
2020-09-17T15:45Z	0.565	false
2020-09-17T15:30Z	0.576	false
2020-09-17T15:15Z	0.561	false
2020-09-17T15:00Z	0.562	false
2020-09-17T14:45Z	0.567	false
2020-09-17T14:30Z	0.562	false
2020-09-17T14:15Z	0.548	false
2020-09-17T14:00Z	0.57	false
2020-09-17T13:45Z	0.577	false
2020-09-17T13:30Z	0.583	false
2020-09-17T13:15Z	0.572	false
2020-09-17T13:00Z	0.576	false
2020-09-17T12:45Z	0.578	false
2020-09-17T12:30Z	0.59	false
2020-09-17T12:15Z	0.579	false
2020-09-17T12:00Z	0.586	false
2020-09-17T11:45Z	0.592	false
2020-09-17T11:30Z	0.59	false
2020-09-17T11:15Z	0.61	false
2020-09-17T11:00Z	0.609	false
2020-09-17T10:45Z	0.611	false
2020-09-17T10:30Z	0.622	false
2020-09-17T10:15Z	0.623	false
2020-09-17T10:00Z	0.629	false
2020-09-17T09:45Z	0.616	false
2020-09-17T09:30Z	0.606	false
2020-09-17T09:15Z	0.591	false
2020-09-17T09:00Z	0.594	false
2020-09-17T08:45Z	0.608	false
2020-09-17T08:30Z	0.589	false
2020-09-17T08:15Z	0.583	false
2020-09-17T08:00Z	0.576	false
2020-09-17T07:45Z	0.561	false
2020-09-17T07:30Z	0.542	false
2020-09-17T07:15Z	0.513	false
2020-09-17T07:00Z	0.508	false
2020-09-17T06:45Z	0.466	false
2020-09-17T06:30Z	0.461	false
2020-09-17T06:15Z	0.48	false
2020-09-17T06:00Z	0.454	false
2020-09-17T05:45Z	0.441	false
2020-09-17T05:30Z	0.444	false
2020-09-17T05:15Z	0.434	false
2020-09-17T05:00Z	0.439	false
2020-09-17T04:45Z	0.456	false
2020-09-17T04:30Z	0.442	false
2020-09-17T04:15Z	0.435	false
2020-09-17T04:00Z	0.435	false
2020-09-17T03:45Z	0.458	false
2020-09-17T03:30Z	0.446	false
2020-09-17T03:15Z	0.44	false
2020-09-17T03:00Z	0.47	false
2020-09-17T02:45Z	0.461	false
2020-09-17T02:30Z	0.444	false
2020-09-17T02:15Z	0.458	false
2020-09-17T02:00Z	0.47	false
2020-09-17T01:45Z	0.469	false
2020-09-17T01:30Z	0.469	false
2020-09-17T01:15Z	0.505	false
2020-09-17T01:00Z	0.492	false
2020-09-17T00:45Z	0.495	false
2020-09-17T00:30Z	0.508	false
2020-09-17T00:15Z	0.524	false
2020-09-17T00:00Z	0.552	false
2020-09-16T23:45Z	0.551	false
2020-09-16T23:30Z	0.556	false
2020-09-16T23:15Z	0.552	false
2020-09-16T23:00Z	0.575	false
2020-09-16T22:45Z	0.584	false
2020-09-16T22:30Z	0.574	false
2020-09-16T22:15Z	0.593	false
2020-09-16T22:00Z	0.595	false
2020-09-16T21:45Z	0.595	false
2020-09-16T21:30Z	0.595	false
2020-09-16T21:15Z	0.6	false
2020-09-16T21:00Z	0.606	false
2020-09-16T20:45Z	0.615	false
2020-09-16T20:30Z	0.615	false
2020-09-16T20:15Z	0.603	false
2020-09-16T20:00Z	0.608	false
2020-09-16T19:45Z	0.61	false
2020-09-16T19:30Z	0.602	false
2020-09-16T19:15Z	0.609	false
2020-09-16T19:00Z	0.613	false
2020-09-16T18:45Z	0.603	false
2020-09-16T18:30Z	0.591	false
2020-09-16T18:15Z	0.587	false
2020-09-16T18:00Z	0.584	false
2020-09-16T17:45Z	0.581	false
2020-09-16T17:30Z	0.58	false
2020-09-16T17:15Z	0.581	false
2020-09-16T17:00Z	0.584	false
2020-09-16T16:45Z	0.58	false
2020-09-16T16:30Z	0.564	false
2020-09-16T16:15Z	0.581	false
2020-09-16T16:00Z	0.575	false
2020-09-16T15:45Z	0.579	false
2020-09-16T15:30Z	0.572	false
2020-09-16T15:15Z	0.561	false
2020-09-16T15:00Z	0.577	false
2020-09-16T14:45Z	0.567	false
2020-09-16T14:30Z	0.58	false
2020-09-16T14:15Z	0.57	false
2020-09-16T14:00Z	0.586	false
2020-09-16T13:45Z	0.564	false
2020-09-16T13:30Z	0.572	false
2020-09-16T13:15Z	0.549	false
2020-09-16T13:00Z	0.573	false
2020-09-16T12:45Z	0.584	false
2020-09-16T12:30Z	0.589	false
2020-09-16T12:15Z	0.585	false
2020-09-16T12:00Z	0.608	false
2020-09-16T11:45Z	0.611	false
2020-09-16T11:30Z	0.599	false
2020-09-16T11:15Z	0.606	false
2020-09-16T11:00Z	0.599	false
2020-09-16T10:45Z	0.605	false
2020-09-16T10:30Z	0.596	false
2020-09-16T10:15Z	0.611	false
2020-09-16T10:00Z	0.609	false
2020-09-16T09:45Z	0.621	false
2020-09-16T09:30Z	0.607	false
2020-09-16T09:15Z	0.608	false
2020-09-16T09:00Z	0.619	false
2020-09-16T08:45Z	0.619	false
2020-09-16T08:30Z	0.62	false
2020-09-16T08:15Z	0.605	false
2020-09-16T08:00Z	0.594	false
2020-09-16T07:45Z	0.58	false
2020-09-16T07:30Z	0.561	false
2020-09-16T07:15Z	0.533	false
2020-09-16T07:00Z	0.511	false
2020-09-16T06:45Z	0.491	false
2020-09-16T06:30Z	0.488	false
2020-09-16T06:15Z	0.457	false
2020-09-16T06:00Z	0.45	false
2020-09-16T05:45Z	0.459	false
2020-09-16T05:30Z	0.439	false
2020-09-16T05:15Z	0.432	false
2020-09-16T05:00Z	0.458	false
2020-09-16T04:45Z	0.439	false
2020-09-16T04:30Z	0.429	false
2020-09-16T04:15Z	0.525	false
2020-09-16T04:00Z	0.46	false
2020-09-16T03:45Z	0.467	false
2020-09-16T03:30Z	0.436	false
2020-09-16T03:15Z	0.531	false
2020-09-16T03:00Z	0.454	false
2020-09-16T02:45Z	0.444	false
2020-09-16T02:30Z	0.461	false
2020-09-16T02:15Z	0.465	false
2020-09-16T02:00Z	0.467	false
2020-09-16T01:45Z	0.471	false
2020-09-16T01:30Z	0.476	false
2020-09-16T01:15Z	0.575	false
2020-09-16T01:00Z	0.496	false
2020-09-16T00:45Z	0.513	false
2020-09-16T00:30Z	0.503	false
2020-09-16T00:15Z	0.518	false
2020-09-16T00:00Z	0.531	false
2020-09-15T23:45Z	0.539	false
2020-09-15T23:30Z	0.548	false
2020-09-15T23:15Z	0.568	false

Forecast data

Key information

• Station name: Chertsey Bourne
• Station ID: 7218
• River name: Chertsey Bourne
• Typical range: 0.40m to 1.06m
• Highest level on record: 2.17m on 23 August 2009
• Site datum: 13.00mAOD (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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