River level Chertsey Bourne at Chertsey Bourne

Check for flood warnings in this area

Latest recorded level 0.62m at 6:30pm Saturday 4 July 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
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Observed data

DateTime	Value	Error
2020-07-04T17:30Z	0.62	false
2020-07-04T17:15Z	0.62	false
2020-07-04T17:00Z	0.615	false
2020-07-04T16:45Z	0.622	false
2020-07-04T16:30Z	0.623	false
2020-07-04T16:15Z	0.626	false
2020-07-04T16:00Z	0.628	false
2020-07-04T15:45Z	0.628	false
2020-07-04T15:30Z	0.63	false
2020-07-04T15:15Z	0.638	false
2020-07-04T15:00Z	0.649	false
2020-07-04T14:45Z	0.649	false
2020-07-04T14:30Z	0.637	false
2020-07-04T14:15Z	0.644	false
2020-07-04T14:00Z	0.653	false
2020-07-04T13:45Z	0.659	false
2020-07-04T13:30Z	0.646	false
2020-07-04T13:15Z	0.763	false
2020-07-04T13:00Z	0.668	false
2020-07-04T12:45Z	0.674	false
2020-07-04T12:30Z	0.667	false
2020-07-04T12:15Z	0.667	false
2020-07-04T12:00Z	0.671	false
2020-07-04T11:45Z	0.667	false
2020-07-04T11:30Z	0.669	false
2020-07-04T11:15Z	0.67	false
2020-07-04T11:00Z	0.665	false
2020-07-04T10:45Z	0.665	false
2020-07-04T10:30Z	0.653	false
2020-07-04T10:15Z	0.649	false
2020-07-04T10:00Z	0.634	false
2020-07-04T09:45Z	0.622	false
2020-07-04T09:30Z	0.608	false
2020-07-04T09:15Z	0.62	false
2020-07-04T09:00Z	0.628	false
2020-07-04T08:45Z	0.612	false
2020-07-04T08:30Z	0.594	false
2020-07-04T08:15Z	0.589	false
2020-07-04T08:00Z	0.568	false
2020-07-04T07:45Z	0.56	false
2020-07-04T07:30Z	0.554	false
2020-07-04T07:15Z	0.539	false
2020-07-04T07:00Z	0.537	false
2020-07-04T06:45Z	0.515	false
2020-07-04T06:30Z	0.527	false
2020-07-04T06:15Z	0.505	false
2020-07-04T06:00Z	0.519	false
2020-07-04T05:45Z	0.518	false
2020-07-04T05:30Z	0.512	false
2020-07-04T05:15Z	0.507	false
2020-07-04T05:00Z	0.51	false
2020-07-04T04:45Z	0.532	false
2020-07-04T04:30Z	0.53	false
2020-07-04T04:15Z	0.508	false
2020-07-04T04:00Z	0.507	false
2020-07-04T03:45Z	0.489	false
2020-07-04T03:30Z	0.496	false
2020-07-04T03:15Z	0.513	false
2020-07-04T03:00Z	0.505	false
2020-07-04T02:45Z	0.503	false
2020-07-04T02:30Z	0.528	false
2020-07-04T02:15Z	0.511	false
2020-07-04T02:00Z	0.533	false
2020-07-04T01:45Z	0.542	false
2020-07-04T01:30Z	0.543	false
2020-07-04T01:15Z	0.572	false
2020-07-04T01:00Z	0.566	false
2020-07-04T00:45Z	0.564	false
2020-07-04T00:30Z	0.568	false
2020-07-04T00:15Z	0.583	false
2020-07-04T00:00Z	0.59	false
2020-07-03T23:45Z	0.603	false
2020-07-03T23:30Z	0.605	false
2020-07-03T23:15Z	0.617	false
2020-07-03T23:00Z	0.611	false
2020-07-03T22:45Z	0.616	false
2020-07-03T22:30Z	0.736	false
2020-07-03T22:15Z	0.64	false
2020-07-03T22:00Z	0.633	false
2020-07-03T21:45Z	0.644	false
2020-07-03T21:30Z	0.639	false
2020-07-03T21:15Z	0.647	false
2020-07-03T21:00Z	0.645	false
2020-07-03T20:45Z	0.651	false
2020-07-03T20:30Z	0.65	false
2020-07-03T20:15Z	0.65	false
2020-07-03T20:00Z	0.672	false
2020-07-03T19:45Z	0.659	false
2020-07-03T19:30Z	0.656	false
2020-07-03T19:15Z	0.643	false
2020-07-03T19:00Z	0.64	false
2020-07-03T18:45Z	0.635	false
2020-07-03T18:30Z	0.628	false
2020-07-03T18:15Z	0.615	false
2020-07-03T18:00Z	0.623	false
2020-07-03T17:45Z	0.616	false
2020-07-03T17:30Z	0.62	false
2020-07-03T17:15Z	0.615	false
2020-07-03T17:00Z	0.614	false
2020-07-03T16:45Z	0.61	false
2020-07-03T16:30Z	0.611	false
2020-07-03T16:15Z	0.603	false
2020-07-03T16:00Z	0.622	false
2020-07-03T15:45Z	0.618	false
2020-07-03T15:30Z	0.622	false
2020-07-03T15:15Z	0.632	false
2020-07-03T15:00Z	0.635	false
2020-07-03T14:45Z	0.631	false
2020-07-03T14:30Z	0.648	false
2020-07-03T14:15Z	0.648	false
2020-07-03T14:00Z	0.642	false
2020-07-03T13:45Z	0.643	false
2020-07-03T13:30Z	0.64	false
2020-07-03T13:15Z	0.647	false
2020-07-03T13:00Z	0.653	false
2020-07-03T12:45Z	0.663	false
2020-07-03T12:30Z	0.658	false
2020-07-03T12:15Z	0.671	false
2020-07-03T12:00Z	0.672	false
2020-07-03T11:45Z	0.685	false
2020-07-03T11:30Z	0.681	false
2020-07-03T11:15Z	0.686	false
2020-07-03T11:00Z	0.681	false
2020-07-03T10:45Z	0.691	false
2020-07-03T10:30Z	0.686	false
2020-07-03T10:15Z	0.69	false
2020-07-03T10:00Z	0.684	false
2020-07-03T09:45Z	0.69	false
2020-07-03T09:30Z	0.685	false
2020-07-03T09:15Z	0.685	false
2020-07-03T09:00Z	0.672	false
2020-07-03T08:45Z	0.655	false
2020-07-03T08:30Z	0.644	false
2020-07-03T08:15Z	0.612	false
2020-07-03T08:00Z	0.588	false
2020-07-03T07:45Z	0.581	false
2020-07-03T07:30Z	0.563	false
2020-07-03T07:15Z	0.551	false
2020-07-03T07:00Z	0.531	false
2020-07-03T06:45Z	0.519	false
2020-07-03T06:30Z	0.511	false
2020-07-03T06:15Z	0.512	false
2020-07-03T06:00Z	0.493	false
2020-07-03T05:45Z	0.492	false
2020-07-03T05:30Z	0.5	false
2020-07-03T05:15Z	0.502	false
2020-07-03T05:00Z	0.494	false
2020-07-03T04:45Z	0.496	false
2020-07-03T04:30Z	0.508	false
2020-07-03T04:15Z	0.502	false
2020-07-03T04:00Z	0.524	false
2020-07-03T03:45Z	0.519	false
2020-07-03T03:30Z	0.506	false
2020-07-03T03:15Z	0.51	false
2020-07-03T03:00Z	0.506	false
2020-07-03T02:45Z	0.531	false
2020-07-03T02:30Z	0.533	false
2020-07-03T02:15Z	0.541	false
2020-07-03T02:00Z	0.563	false
2020-07-03T01:45Z	0.55	false
2020-07-03T01:30Z	0.574	false
2020-07-03T01:15Z	0.57	false
2020-07-03T01:00Z	0.57	false
2020-07-03T00:45Z	0.588	false
2020-07-03T00:30Z	0.594	false
2020-07-03T00:15Z	0.603	false
2020-07-03T00:00Z	0.612	false
2020-07-02T23:45Z	0.624	false
2020-07-02T23:30Z	0.637	false
2020-07-02T23:15Z	0.649	false
2020-07-02T23:00Z	0.645	false
2020-07-02T22:45Z	0.652	false
2020-07-02T22:30Z	0.663	false
2020-07-02T22:15Z	0.662	false
2020-07-02T22:00Z	0.681	false
2020-07-02T21:45Z	0.676	false
2020-07-02T21:30Z	0.672	false
2020-07-02T21:15Z	0.686	false
2020-07-02T21:00Z	0.685	false
2020-07-02T20:45Z	0.701	false
2020-07-02T20:30Z	0.699	false
2020-07-02T20:15Z	0.698	false
2020-07-02T20:00Z	0.706	false
2020-07-02T19:45Z	0.699	false
2020-07-02T19:30Z	0.699	false
2020-07-02T19:15Z	0.695	false
2020-07-02T19:00Z	0.69	false
2020-07-02T18:45Z	0.688	false
2020-07-02T18:30Z	0.687	false
2020-07-02T18:15Z	0.685	false
2020-07-02T18:00Z	0.683	false
2020-07-02T17:45Z	0.679	false
2020-07-02T17:30Z	0.678	false
2020-07-02T17:15Z	0.676	false
2020-07-02T17:00Z	0.678	false
2020-07-02T16:45Z	0.692	false
2020-07-02T16:30Z	0.69	false
2020-07-02T16:15Z	0.691	false
2020-07-02T16:00Z	0.704	false
2020-07-02T15:45Z	0.706	false
2020-07-02T15:30Z	0.705	false
2020-07-02T15:15Z	0.71	false
2020-07-02T15:00Z	0.706	false
2020-07-02T14:45Z	0.703	false
2020-07-02T14:30Z	0.707	false
2020-07-02T14:15Z	0.704	false
2020-07-02T14:00Z	0.708	false
2020-07-02T13:45Z	0.722	false
2020-07-02T13:30Z	0.715	false
2020-07-02T13:15Z	0.706	false
2020-07-02T13:00Z	0.708	false
2020-07-02T12:45Z	0.702	false
2020-07-02T12:30Z	0.69	false
2020-07-02T12:15Z	0.685	false
2020-07-02T12:00Z	0.686	false
2020-07-02T11:45Z	0.661	false
2020-07-02T11:30Z	0.654	false
2020-07-02T11:15Z	0.651	false
2020-07-02T11:00Z	0.649	false
2020-07-02T10:45Z	0.65	false
2020-07-02T10:30Z	0.654	false
2020-07-02T10:15Z	0.66	false
2020-07-02T10:00Z	0.666	false
2020-07-02T09:45Z	0.65	false
2020-07-02T09:30Z	0.643	false
2020-07-02T09:15Z	0.64	false
2020-07-02T09:00Z	0.636	false
2020-07-02T08:45Z	0.637	false
2020-07-02T08:30Z	0.625	false
2020-07-02T08:15Z	0.618	false
2020-07-02T08:00Z	0.607	false
2020-07-02T07:45Z	0.581	false
2020-07-02T07:30Z	0.552	false
2020-07-02T07:15Z	0.527	false
2020-07-02T07:00Z	0.54	false
2020-07-02T06:45Z	0.546	false
2020-07-02T06:30Z	0.523	false
2020-07-02T06:15Z	0.502	false
2020-07-02T06:00Z	0.492	false
2020-07-02T05:45Z	0.499	false
2020-07-02T05:30Z	0.506	false
2020-07-02T05:15Z	0.481	false
2020-07-02T05:00Z	0.488	false
2020-07-02T04:45Z	0.489	false
2020-07-02T04:30Z	0.494	false
2020-07-02T04:15Z	0.502	false
2020-07-02T04:00Z	0.495	false
2020-07-02T03:45Z	0.504	false
2020-07-02T03:30Z	0.504	false
2020-07-02T03:15Z	0.489	false
2020-07-02T03:00Z	0.485	false
2020-07-02T02:45Z	0.5	false
2020-07-02T02:30Z	0.503	false
2020-07-02T02:15Z	0.509	false
2020-07-02T02:00Z	0.526	false
2020-07-02T01:45Z	0.539	false
2020-07-02T01:30Z	0.539	false
2020-07-02T01:15Z	0.556	false
2020-07-02T01:00Z	0.558	false
2020-07-02T00:45Z	0.554	false
2020-07-02T00:30Z	0.568	false
2020-07-02T00:15Z	0.574	false
2020-07-02T00:00Z	0.591	false
2020-07-01T23:45Z	0.607	false
2020-07-01T23:30Z	0.61	false
2020-07-01T23:15Z	0.626	false
2020-07-01T23:00Z	0.636	false
2020-07-01T22:45Z	0.638	false
2020-07-01T22:30Z	0.63	false
2020-07-01T22:15Z	0.628	false
2020-07-01T22:00Z	0.629	false
2020-07-01T21:45Z	0.632	false
2020-07-01T21:30Z	0.639	false
2020-07-01T21:15Z	0.656	false
2020-07-01T21:00Z	0.659	false
2020-07-01T20:45Z	0.657	false
2020-07-01T20:30Z	0.669	false
2020-07-01T20:15Z	0.666	false
2020-07-01T20:00Z	0.662	false
2020-07-01T19:45Z	0.66	false
2020-07-01T19:30Z	0.659	false
2020-07-01T19:15Z	0.658	false
2020-07-01T19:00Z	0.655	false
2020-07-01T18:45Z	0.653	false
2020-07-01T18:30Z	0.646	false
2020-07-01T18:15Z	0.652	false
2020-07-01T18:00Z	0.655	false
2020-07-01T17:45Z	0.648	false
2020-07-01T17:30Z	0.645	false
2020-07-01T17:15Z	0.644	false
2020-07-01T17:00Z	0.642	false
2020-07-01T16:45Z	0.648	false
2020-07-01T16:30Z	0.648	false
2020-07-01T16:15Z	0.646	false
2020-07-01T16:00Z	0.64	false
2020-07-01T15:45Z	0.629	false
2020-07-01T15:30Z	0.708	false
2020-07-01T15:15Z	0.618	false
2020-07-01T15:00Z	0.614	false
2020-07-01T14:45Z	0.611	false
2020-07-01T14:30Z	0.622	false
2020-07-01T14:15Z	0.618	false
2020-07-01T14:00Z	0.632	false
2020-07-01T13:45Z	0.631	false
2020-07-01T13:30Z	0.639	false
2020-07-01T13:15Z	0.639	false
2020-07-01T13:00Z	0.64	false
2020-07-01T12:45Z	0.635	false
2020-07-01T12:30Z	0.648	false
2020-07-01T12:15Z	0.652	false
2020-07-01T12:00Z	0.651	false
2020-07-01T11:45Z	0.65	false
2020-07-01T11:30Z	0.646	false
2020-07-01T11:15Z	0.645	false
2020-07-01T11:00Z	0.651	false
2020-07-01T10:45Z	0.652	false
2020-07-01T10:30Z	0.746	false
2020-07-01T10:15Z	0.65	false
2020-07-01T10:00Z	0.64	false
2020-07-01T09:45Z	0.631	false
2020-07-01T09:30Z	0.637	false
2020-07-01T09:15Z	0.639	false
2020-07-01T09:00Z	0.653	false
2020-07-01T08:45Z	0.633	false
2020-07-01T08:30Z	0.618	false
2020-07-01T08:15Z	0.599	false
2020-07-01T08:00Z	0.586	false
2020-07-01T07:45Z	0.558	false
2020-07-01T07:30Z	0.545	false
2020-07-01T07:15Z	0.539	false
2020-07-01T07:00Z	0.519	false
2020-07-01T06:45Z	0.497	false
2020-07-01T06:30Z	0.494	false
2020-07-01T06:15Z	0.493	false
2020-07-01T06:00Z	0.491	false
2020-07-01T05:45Z	0.491	false
2020-07-01T05:30Z	0.498	false
2020-07-01T05:15Z	0.519	false
2020-07-01T05:00Z	0.473	false
2020-07-01T04:45Z	0.484	false
2020-07-01T04:30Z	0.489	false
2020-07-01T04:15Z	0.476	false
2020-07-01T04:00Z	0.496	false
2020-07-01T03:45Z	0.492	false
2020-07-01T03:30Z	0.485	false
2020-07-01T03:15Z	0.512	false
2020-07-01T03:00Z	0.507	false
2020-07-01T02:45Z	0.52	false
2020-07-01T02:30Z	0.523	false
2020-07-01T02:15Z	0.524	false
2020-07-01T02:00Z	0.531	false
2020-07-01T01:45Z	0.526	false
2020-07-01T01:30Z	0.532	false
2020-07-01T01:15Z	0.553	false
2020-07-01T01:00Z	0.625	false
2020-07-01T00:45Z	0.565	false
2020-07-01T00:30Z	0.569	false
2020-07-01T00:15Z	0.58	false
2020-07-01T00:00Z	0.604	false
2020-06-30T23:45Z	0.62	false
2020-06-30T23:30Z	0.615	false
2020-06-30T23:15Z	0.624	false
2020-06-30T23:00Z	0.617	false
2020-06-30T22:45Z	0.615	false
2020-06-30T22:30Z	0.63	false
2020-06-30T22:15Z	0.636	false
2020-06-30T22:00Z	0.64	false
2020-06-30T21:45Z	0.64	false
2020-06-30T21:30Z	0.656	false
2020-06-30T21:15Z	0.658	false
2020-06-30T21:00Z	0.654	false
2020-06-30T20:45Z	0.65	false
2020-06-30T20:30Z	0.658	false
2020-06-30T20:15Z	0.656	false
2020-06-30T20:00Z	0.66	false
2020-06-30T19:45Z	0.668	false
2020-06-30T19:30Z	0.661	false
2020-06-30T19:15Z	0.667	false
2020-06-30T19:00Z	0.653	false
2020-06-30T18:45Z	0.644	false
2020-06-30T18:30Z	0.63	false
2020-06-30T18:15Z	0.621	false
2020-06-30T18:00Z	0.634	false
2020-06-30T17:45Z	0.623	false
2020-06-30T17:30Z	0.621	false
2020-06-30T17:15Z	0.626	false
2020-06-30T17:00Z	0.63	false
2020-06-30T16:45Z	0.629	false
2020-06-30T16:30Z	0.617	false
2020-06-30T16:15Z	0.618	false
2020-06-30T16:00Z	0.617	false
2020-06-30T15:45Z	0.618	false
2020-06-30T15:30Z	0.61	false
2020-06-30T15:15Z	0.618	false
2020-06-30T15:00Z	0.631	false
2020-06-30T14:45Z	0.63	false
2020-06-30T14:30Z	0.646	false
2020-06-30T14:15Z	0.644	false
2020-06-30T14:00Z	0.636	false
2020-06-30T13:45Z	0.635	false
2020-06-30T13:30Z	0.646	false
2020-06-30T13:15Z	0.647	false
2020-06-30T13:00Z	0.644	false
2020-06-30T12:45Z	0.736	false
2020-06-30T12:30Z	0.642	false
2020-06-30T12:15Z	0.661	false
2020-06-30T12:00Z	0.661	false
2020-06-30T11:45Z	0.67	false
2020-06-30T11:30Z	0.665	false
2020-06-30T11:15Z	0.666	false
2020-06-30T11:00Z	0.647	false
2020-06-30T10:45Z	0.647	false
2020-06-30T10:30Z	0.65	false
2020-06-30T10:15Z	0.653	false
2020-06-30T10:00Z	0.661	false
2020-06-30T09:45Z	0.655	false
2020-06-30T09:30Z	0.647	false
2020-06-30T09:15Z	0.65	false
2020-06-30T09:00Z	0.64	false
2020-06-30T08:45Z	0.631	false
2020-06-30T08:30Z	0.614	false
2020-06-30T08:15Z	0.603	false
2020-06-30T08:00Z	0.585	false
2020-06-30T07:45Z	0.558	false
2020-06-30T07:30Z	0.559	false
2020-06-30T07:15Z	0.534	false
2020-06-30T07:00Z	0.524	false
2020-06-30T06:45Z	0.539	false
2020-06-30T06:30Z	0.471	false
2020-06-30T06:15Z	0.466	false
2020-06-30T06:00Z	0.469	false
2020-06-30T05:45Z	0.445	false
2020-06-30T05:30Z	0.469	false
2020-06-30T05:15Z	0.485	false
2020-06-30T05:00Z	0.486	false
2020-06-30T04:45Z	0.579	false
2020-06-30T04:30Z	0.487	false
2020-06-30T04:15Z	0.473	false
2020-06-30T04:00Z	0.453	false
2020-06-30T03:45Z	0.458	false
2020-06-30T03:30Z	0.455	false
2020-06-30T03:15Z	0.463	false
2020-06-30T03:00Z	0.465	false
2020-06-30T02:45Z	0.491	false
2020-06-30T02:30Z	0.582	false
2020-06-30T02:15Z	0.513	false
2020-06-30T02:00Z	0.5	false
2020-06-30T01:45Z	0.502	false
2020-06-30T01:30Z	0.511	false
2020-06-30T01:15Z	0.523	false
2020-06-30T01:00Z	0.531	false
2020-06-30T00:45Z	0.541	false
2020-06-30T00:30Z	0.552	false
2020-06-30T00:15Z	0.579	false
2020-06-30T00:00Z	0.578	false
2020-06-29T23:45Z	0.575	false
2020-06-29T23:30Z	0.577	false
2020-06-29T23:15Z	0.592	false
2020-06-29T23:00Z	0.588	false
2020-06-29T22:45Z	0.599	false
2020-06-29T22:30Z	0.599	false
2020-06-29T22:15Z	0.606	false
2020-06-29T22:00Z	0.618	false
2020-06-29T21:45Z	0.621	false
2020-06-29T21:30Z	0.618	false
2020-06-29T21:15Z	0.611	false
2020-06-29T21:00Z	0.625	false
2020-06-29T20:45Z	0.624	false
2020-06-29T20:30Z	0.641	false
2020-06-29T20:15Z	0.643	false
2020-06-29T20:00Z	0.645	false
2020-06-29T19:45Z	0.65	false
2020-06-29T19:30Z	0.736	false
2020-06-29T19:15Z	0.637	false
2020-06-29T19:00Z	0.623	false
2020-06-29T18:45Z	0.611	false
2020-06-29T18:30Z	0.595	false
2020-06-29T18:15Z	0.592	false
2020-06-29T18:00Z	0.596	false
2020-06-29T17:45Z	0.609	false
2020-06-29T17:30Z	0.603	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
• View your property's long term risk of flooding

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