River level River Thames at Maidenhead

Check for flood warnings in this area

Latest recorded level 2.91m at 5:00am Thursday 20 February 2020.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 3.55m 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
2020-02-20T05:00Z	2.91	false
2020-02-20T04:45Z	2.911	false
2020-02-20T04:30Z	2.911	false
2020-02-20T04:15Z	2.912	false
2020-02-20T04:00Z	2.912	false
2020-02-20T03:45Z	2.912	false
2020-02-20T03:30Z	2.912	false
2020-02-20T03:15Z	2.913	false
2020-02-20T03:00Z	2.913	false
2020-02-20T02:45Z	2.913	false
2020-02-20T02:30Z	2.914	false
2020-02-20T02:15Z	2.915	false
2020-02-20T02:00Z	2.915	false
2020-02-20T01:45Z	2.915	false
2020-02-20T01:30Z	2.915	false
2020-02-20T01:15Z	2.917	false
2020-02-20T01:00Z	2.915	false
2020-02-20T00:45Z	2.915	false
2020-02-20T00:30Z	2.916	false
2020-02-20T00:15Z	2.917	false
2020-02-20T00:00Z	2.917	false
2020-02-19T23:45Z	2.917	false
2020-02-19T23:30Z	2.918	false
2020-02-19T23:15Z	2.918	false
2020-02-19T23:00Z	2.918	false
2020-02-19T22:45Z	2.917	false
2020-02-19T22:30Z	2.919	false
2020-02-19T22:15Z	2.918	false
2020-02-19T22:00Z	2.919	false
2020-02-19T21:45Z	2.919	false
2020-02-19T21:30Z	2.919	false
2020-02-19T21:15Z	2.919	false
2020-02-19T21:00Z	2.919	false
2020-02-19T20:45Z	2.918	false
2020-02-19T20:30Z	2.918	false
2020-02-19T20:15Z	2.919	false
2020-02-19T20:00Z	2.919	false
2020-02-19T19:45Z	2.918	false
2020-02-19T19:30Z	2.918	false
2020-02-19T19:15Z	2.918	false
2020-02-19T19:00Z	2.919	false
2020-02-19T18:45Z	2.919	false
2020-02-19T18:30Z	2.918	false
2020-02-19T18:15Z	2.918	false
2020-02-19T18:00Z	2.92	false
2020-02-19T17:45Z	2.919	false
2020-02-19T17:30Z	2.92	false
2020-02-19T17:15Z	2.92	false
2020-02-19T17:00Z	2.92	false
2020-02-19T16:45Z	2.92	false
2020-02-19T16:30Z	2.919	false
2020-02-19T16:15Z	2.92	false
2020-02-19T16:00Z	2.92	false
2020-02-19T15:45Z	2.918	false
2020-02-19T15:30Z	2.918	false
2020-02-19T15:15Z	2.918	false
2020-02-19T15:00Z	2.916	false
2020-02-19T14:45Z	2.914	false
2020-02-19T14:30Z	2.913	false
2020-02-19T14:15Z	2.913	false
2020-02-19T14:00Z	2.913	false
2020-02-19T13:45Z	2.915	false
2020-02-19T13:30Z	2.915	false
2020-02-19T13:15Z	2.916	false
2020-02-19T13:00Z	2.916	false
2020-02-19T12:45Z	2.914	false
2020-02-19T12:30Z	2.914	false
2020-02-19T12:15Z	2.912	false
2020-02-19T12:00Z	2.912	false
2020-02-19T11:45Z	2.911	false
2020-02-19T11:30Z	2.914	false
2020-02-19T11:15Z	2.91	false
2020-02-19T11:00Z	2.912	false
2020-02-19T10:45Z	2.912	false
2020-02-19T10:30Z	2.911	false
2020-02-19T10:15Z	2.913	false
2020-02-19T10:00Z	2.912	false
2020-02-19T09:45Z	2.912	false
2020-02-19T09:30Z	2.912	false
2020-02-19T09:15Z	2.913	false
2020-02-19T09:00Z	2.912	false
2020-02-19T08:45Z	2.913	false
2020-02-19T08:30Z	2.912	false
2020-02-19T08:15Z	2.912	false
2020-02-19T08:00Z	2.912	false
2020-02-19T07:45Z	2.912	false
2020-02-19T07:30Z	2.911	false
2020-02-19T07:15Z	2.912	false
2020-02-19T07:00Z	2.912	false
2020-02-19T06:45Z	2.912	false
2020-02-19T06:30Z	2.914	false
2020-02-19T06:15Z	2.914	false
2020-02-19T06:00Z	2.913	false
2020-02-19T05:45Z	2.913	false
2020-02-19T05:30Z	2.915	false
2020-02-19T05:15Z	2.915	false
2020-02-19T05:00Z	2.914	false
2020-02-19T04:45Z	2.913	false
2020-02-19T04:30Z	2.914	false
2020-02-19T04:15Z	2.915	false
2020-02-19T04:00Z	2.916	false
2020-02-19T03:45Z	2.916	false
2020-02-19T03:30Z	2.915	false
2020-02-19T03:15Z	2.914	false
2020-02-19T03:00Z	2.915	false
2020-02-19T02:45Z	2.915	false
2020-02-19T02:30Z	2.915	false
2020-02-19T02:15Z	2.912	false
2020-02-19T02:00Z	2.913	false
2020-02-19T01:45Z	2.912	false
2020-02-19T01:30Z	2.911	false
2020-02-19T01:15Z	2.911	false
2020-02-19T01:00Z	2.91	false
2020-02-19T00:45Z	2.91	false
2020-02-19T00:30Z	2.908	false
2020-02-19T00:15Z	2.908	false
2020-02-19T00:00Z	2.907	false
2020-02-18T23:45Z	2.908	false
2020-02-18T23:30Z	2.905	false
2020-02-18T23:15Z	2.905	false
2020-02-18T23:00Z	2.906	false
2020-02-18T22:45Z	2.904	false
2020-02-18T22:30Z	2.906	false
2020-02-18T22:15Z	2.905	false
2020-02-18T22:00Z	2.905	false
2020-02-18T21:45Z	2.907	false
2020-02-18T21:30Z	2.911	false
2020-02-18T21:15Z	2.915	false
2020-02-18T21:00Z	2.918	false
2020-02-18T20:45Z	2.926	false
2020-02-18T20:30Z	2.934	false
2020-02-18T20:15Z	2.947	false
2020-02-18T20:00Z	2.962	false
2020-02-18T19:45Z	2.982	false
2020-02-18T19:30Z	2.991	false
2020-02-18T19:15Z	2.995	false
2020-02-18T19:00Z	2.999	false
2020-02-18T18:45Z	2.997	false
2020-02-18T18:30Z	2.993	false
2020-02-18T18:15Z	2.992	false
2020-02-18T18:00Z	2.989	false
2020-02-18T17:45Z	2.988	false
2020-02-18T17:30Z	2.985	false
2020-02-18T17:15Z	2.984	false
2020-02-18T17:00Z	2.983	false
2020-02-18T16:45Z	2.98	false
2020-02-18T16:30Z	2.979	false
2020-02-18T16:15Z	2.979	false
2020-02-18T16:00Z	2.978	false
2020-02-18T15:45Z	2.979	false
2020-02-18T15:30Z	2.982	false
2020-02-18T15:15Z	2.986	false
2020-02-18T15:00Z	2.994	false
2020-02-18T14:45Z	3.007	false
2020-02-18T14:30Z	3.022	false
2020-02-18T14:15Z	3.032	false
2020-02-18T14:00Z	3.044	false
2020-02-18T13:45Z	3.049	false
2020-02-18T13:30Z	3.045	false
2020-02-18T13:15Z	3.041	false
2020-02-18T13:00Z	3.037	false
2020-02-18T12:45Z	3.034	false
2020-02-18T12:30Z	3.031	false
2020-02-18T12:15Z	3.026	false
2020-02-18T12:00Z	3.023	false
2020-02-18T11:45Z	3.02	false
2020-02-18T11:30Z	3.014	false
2020-02-18T11:15Z	3.012	false
2020-02-18T11:00Z	3.009	false
2020-02-18T10:45Z	3.007	false
2020-02-18T10:30Z	3.001	false
2020-02-18T10:15Z	2.999	false
2020-02-18T10:00Z	2.996	false
2020-02-18T09:45Z	2.992	false
2020-02-18T09:30Z	2.989	false
2020-02-18T09:15Z	2.988	false
2020-02-18T09:00Z	2.984	false
2020-02-18T08:45Z	2.982	false
2020-02-18T08:30Z	2.979	false
2020-02-18T08:15Z	2.975	false
2020-02-18T08:00Z	2.973	false
2020-02-18T07:45Z	2.97	false
2020-02-18T07:30Z	2.968	false
2020-02-18T07:15Z	2.964	false
2020-02-18T07:00Z	2.962	false
2020-02-18T06:45Z	2.959	false
2020-02-18T06:30Z	2.957	false
2020-02-18T06:15Z	2.954	false
2020-02-18T06:00Z	2.953	false
2020-02-18T05:45Z	2.951	false
2020-02-18T05:30Z	2.949	false
2020-02-18T05:15Z	2.948	false
2020-02-18T05:00Z	2.947	false
2020-02-18T04:45Z	2.946	false
2020-02-18T04:30Z	2.945	false
2020-02-18T04:15Z	2.946	false
2020-02-18T04:00Z	2.948	false
2020-02-18T03:45Z	2.952	false
2020-02-18T03:30Z	2.96	false
2020-02-18T03:15Z	2.972	false
2020-02-18T03:00Z	2.986	false
2020-02-18T02:45Z	2.998	false
2020-02-18T02:30Z	2.995	false
2020-02-18T02:15Z	2.994	false
2020-02-18T02:00Z	2.99	false
2020-02-18T01:45Z	2.987	false
2020-02-18T01:30Z	2.986	false
2020-02-18T01:15Z	2.983	false
2020-02-18T01:00Z	2.98	false
2020-02-18T00:45Z	2.977	false
2020-02-18T00:30Z	2.975	false
2020-02-18T00:15Z	2.972	false
2020-02-18T00:00Z	2.971	false
2020-02-17T23:45Z	2.969	false
2020-02-17T23:30Z	2.967	false
2020-02-17T23:15Z	2.966	false
2020-02-17T23:00Z	2.965	false
2020-02-17T22:45Z	2.963	false
2020-02-17T22:30Z	2.962	false
2020-02-17T22:15Z	2.964	false
2020-02-17T22:00Z	2.966	false
2020-02-17T21:45Z	2.969	false
2020-02-17T21:30Z	2.975	false
2020-02-17T21:15Z	2.983	false
2020-02-17T21:00Z	2.992	false
2020-02-17T20:45Z	3.004	false
2020-02-17T20:30Z	3.002	false
2020-02-17T20:15Z	2.999	false
2020-02-17T20:00Z	2.996	false
2020-02-17T19:45Z	2.992	false
2020-02-17T19:30Z	2.99	false
2020-02-17T19:15Z	2.987	false
2020-02-17T19:00Z	2.984	false
2020-02-17T18:45Z	2.981	false
2020-02-17T18:30Z	2.979	false
2020-02-17T18:15Z	2.975	false
2020-02-17T18:00Z	2.973	false
2020-02-17T17:45Z	2.972	false
2020-02-17T17:30Z	2.968	false
2020-02-17T17:15Z	2.965	false
2020-02-17T17:00Z	2.963	false
2020-02-17T16:45Z	2.961	false
2020-02-17T16:30Z	2.957	false
2020-02-17T16:15Z	2.956	false
2020-02-17T16:00Z	2.954	false
2020-02-17T15:45Z	2.952	false
2020-02-17T15:30Z	2.95	false
2020-02-17T15:15Z	2.949	false
2020-02-17T15:00Z	2.946	false
2020-02-17T14:45Z	2.945	false
2020-02-17T14:30Z	2.944	false
2020-02-17T14:15Z	2.943	false
2020-02-17T14:00Z	2.942	false
2020-02-17T13:45Z	2.943	false
2020-02-17T13:30Z	2.944	false
2020-02-17T13:15Z	2.945	false
2020-02-17T13:00Z	2.948	false
2020-02-17T12:45Z	2.951	false
2020-02-17T12:30Z	2.956	false
2020-02-17T12:15Z	2.965	false
2020-02-17T12:00Z	2.975	false
2020-02-17T11:45Z	2.989	false
2020-02-17T11:30Z	2.995	false
2020-02-17T11:15Z	2.993	false
2020-02-17T11:00Z	2.989	false
2020-02-17T10:45Z	2.987	false
2020-02-17T10:30Z	2.984	false
2020-02-17T10:15Z	2.982	false
2020-02-17T10:00Z	2.979	false
2020-02-17T09:45Z	2.978	false
2020-02-17T09:30Z	2.974	false
2020-02-17T09:15Z	2.972	false
2020-02-17T09:00Z	2.97	false
2020-02-17T08:45Z	2.967	false
2020-02-17T08:30Z	2.965	false
2020-02-17T08:15Z	2.963	false
2020-02-17T08:00Z	2.96	false
2020-02-17T07:45Z	2.957	false
2020-02-17T07:30Z	2.956	false
2020-02-17T07:15Z	2.953	false
2020-02-17T07:00Z	2.951	false
2020-02-17T06:45Z	2.949	false
2020-02-17T06:30Z	2.947	false
2020-02-17T06:15Z	2.945	false
2020-02-17T06:00Z	2.944	false
2020-02-17T05:45Z	2.942	false
2020-02-17T05:30Z	2.94	false
2020-02-17T05:15Z	2.937	false
2020-02-17T05:00Z	2.935	false
2020-02-17T04:45Z	2.934	false
2020-02-17T04:30Z	2.931	false
2020-02-17T04:15Z	2.929	false
2020-02-17T04:00Z	2.928	false
2020-02-17T03:45Z	2.925	false
2020-02-17T03:30Z	2.924	false
2020-02-17T03:15Z	2.922	false
2020-02-17T03:00Z	2.922	false
2020-02-17T02:45Z	2.92	false
2020-02-17T02:30Z	2.919	false
2020-02-17T02:15Z	2.918	false
2020-02-17T02:00Z	2.917	false
2020-02-17T01:45Z	2.918	false
2020-02-17T01:30Z	2.918	false
2020-02-17T01:15Z	2.918	false
2020-02-17T01:00Z	2.919	false
2020-02-17T00:45Z	2.924	false
2020-02-17T00:30Z	2.927	false
2020-02-17T00:15Z	2.932	false
2020-02-17T00:00Z	2.941	false
2020-02-16T23:45Z	2.953	false
2020-02-16T23:30Z	2.968	false
2020-02-16T23:15Z	2.98	false
2020-02-16T23:00Z	2.98	false
2020-02-16T22:45Z	2.978	false
2020-02-16T22:30Z	2.977	false
2020-02-16T22:15Z	2.976	false
2020-02-16T22:00Z	2.976	false
2020-02-16T21:45Z	2.975	false
2020-02-16T21:30Z	2.975	false
2020-02-16T21:15Z	2.975	false
2020-02-16T21:00Z	2.976	false
2020-02-16T20:45Z	2.974	false
2020-02-16T20:30Z	2.976	false
2020-02-16T20:15Z	2.978	false
2020-02-16T20:00Z	2.98	false
2020-02-16T19:45Z	2.985	false
2020-02-16T19:30Z	2.989	false
2020-02-16T19:15Z	2.997	false
2020-02-16T19:00Z	3.008	false
2020-02-16T18:45Z	3.021	false
2020-02-16T18:30Z	3.032	false
2020-02-16T18:15Z	3.032	false
2020-02-16T18:00Z	3.028	false
2020-02-16T17:45Z	3.027	false
2020-02-16T17:30Z	3.025	false
2020-02-16T17:15Z	3.023	false
2020-02-16T17:00Z	3.021	false
2020-02-16T16:45Z	3.017	false
2020-02-16T16:30Z	3.015	false
2020-02-16T16:15Z	3.014	false
2020-02-16T16:00Z	3.013	false
2020-02-16T15:45Z	3.014	false
2020-02-16T15:30Z	3.016	false
2020-02-16T15:15Z	3.021	false
2020-02-16T15:00Z	3.028	false
2020-02-16T14:45Z	3.04	false
2020-02-16T14:30Z	3.05	false
2020-02-16T14:15Z	3.063	false
2020-02-16T14:00Z	3.058	false
2020-02-16T13:45Z	3.052	false
2020-02-16T13:30Z	3.049	false
2020-02-16T13:15Z	3.044	false
2020-02-16T13:00Z	3.038	false
2020-02-16T12:45Z	3.033	false
2020-02-16T12:30Z	3.028	false
2020-02-16T12:15Z	3.022	false
2020-02-16T12:00Z	3.019	false
2020-02-16T11:45Z	3.016	false
2020-02-16T11:30Z	3.014	false
2020-02-16T11:15Z	3.01	false
2020-02-16T11:00Z	3.006	false
2020-02-16T10:45Z	3.004	false
2020-02-16T10:30Z	3.001	false
2020-02-16T10:15Z	2.998	false
2020-02-16T10:00Z	2.995	false
2020-02-16T09:45Z	2.991	false
2020-02-16T09:30Z	2.989	false
2020-02-16T09:15Z	2.987	false
2020-02-16T09:00Z	2.983	false
2020-02-16T08:45Z	2.981	false
2020-02-16T08:30Z	2.98	false
2020-02-16T08:15Z	2.98	false
2020-02-16T08:00Z	2.978	false
2020-02-16T07:45Z	2.974	false
2020-02-16T07:30Z	2.971	false
2020-02-16T07:15Z	2.968	false
2020-02-16T07:00Z	2.965	false
2020-02-16T06:45Z	2.965	false
2020-02-16T06:30Z	2.963	false
2020-02-16T06:15Z	2.961	false
2020-02-16T06:00Z	2.961	false
2020-02-16T05:45Z	2.958	false
2020-02-16T05:30Z	2.956	false
2020-02-16T05:15Z	2.955	false
2020-02-16T05:00Z	2.952	false
2020-02-16T04:45Z	2.952	false
2020-02-16T04:30Z	2.951	false
2020-02-16T04:15Z	2.95	false
2020-02-16T04:00Z	2.947	false
2020-02-16T03:45Z	2.948	false
2020-02-16T03:30Z	2.946	false
2020-02-16T03:15Z	2.946	false
2020-02-16T03:00Z	2.946	false
2020-02-16T02:45Z	2.945	false
2020-02-16T02:30Z	2.944	false
2020-02-16T02:15Z	2.943	false
2020-02-16T02:00Z	2.942	false
2020-02-16T01:45Z	2.941	false
2020-02-16T01:30Z	2.941	false
2020-02-16T01:15Z	2.941	false
2020-02-16T01:00Z	2.94	false
2020-02-16T00:45Z	2.939	false
2020-02-16T00:30Z	2.937	false
2020-02-16T00:15Z	2.938	false
2020-02-16T00:00Z	2.937	false
2020-02-15T23:45Z	2.938	false
2020-02-15T23:30Z	2.936	false
2020-02-15T23:15Z	2.935	false
2020-02-15T23:00Z	2.935	false
2020-02-15T22:45Z	2.935	false
2020-02-15T22:30Z	2.934	false
2020-02-15T22:15Z	2.934	false
2020-02-15T22:00Z	2.933	false
2020-02-15T21:45Z	2.933	false
2020-02-15T21:30Z	2.933	false
2020-02-15T21:15Z	2.932	false
2020-02-15T21:00Z	2.933	false
2020-02-15T20:45Z	2.932	false
2020-02-15T20:30Z	2.933	false
2020-02-15T20:15Z	2.931	false
2020-02-15T20:00Z	2.932	false
2020-02-15T19:45Z	2.932	false
2020-02-15T19:30Z	2.932	false
2020-02-15T19:15Z	2.933	false
2020-02-15T19:00Z	2.934	false
2020-02-15T18:45Z	2.935	false
2020-02-15T18:30Z	2.934	false
2020-02-15T18:15Z	2.934	false
2020-02-15T18:00Z	2.934	false
2020-02-15T17:45Z	2.935	false
2020-02-15T17:30Z	2.935	false
2020-02-15T17:15Z	2.935	false
2020-02-15T17:00Z	2.936	false
2020-02-15T16:45Z	2.934	false
2020-02-15T16:30Z	2.934	false
2020-02-15T16:15Z	2.937	false
2020-02-15T16:00Z	2.934	false
2020-02-15T15:45Z	2.932	false
2020-02-15T15:30Z	2.911	false
2020-02-15T15:15Z	2.885	false
2020-02-15T15:00Z	2.883	false
2020-02-15T14:45Z	2.88	false
2020-02-15T14:30Z	2.879	false
2020-02-15T14:15Z	2.875	false
2020-02-15T14:00Z	2.871	false
2020-02-15T13:45Z	2.865	false
2020-02-15T13:30Z	2.862	false
2020-02-15T13:15Z	2.864	false
2020-02-15T13:00Z	2.869	false
2020-02-15T12:45Z	2.871	false
2020-02-15T12:30Z	2.873	false
2020-02-15T12:15Z	2.874	false
2020-02-15T12:00Z	2.874	false
2020-02-15T11:45Z	2.875	false
2020-02-15T11:30Z	2.875	false
2020-02-15T11:15Z	2.876	false
2020-02-15T11:00Z	2.877	false
2020-02-15T10:45Z	2.876	false
2020-02-15T10:30Z	2.874	false
2020-02-15T10:15Z	2.871	false
2020-02-15T10:00Z	2.866	false
2020-02-15T09:45Z	2.862	false
2020-02-15T09:30Z	2.861	false
2020-02-15T09:15Z	2.86	false
2020-02-15T09:00Z	2.859	false
2020-02-15T08:45Z	2.859	false
2020-02-15T08:30Z	2.859	false
2020-02-15T08:15Z	2.859	false
2020-02-15T08:00Z	2.858	false
2020-02-15T07:45Z	2.857	false
2020-02-15T07:30Z	2.858	false
2020-02-15T07:15Z	2.857	false
2020-02-15T07:00Z	2.856	false
2020-02-15T06:45Z	2.856	false
2020-02-15T06:30Z	2.855	false
2020-02-15T06:15Z	2.855	false
2020-02-15T06:00Z	2.853	false
2020-02-15T05:45Z	2.853	false
2020-02-15T05:30Z	2.853	false
2020-02-15T05:15Z	2.852	false

Forecast data

Key information

• Station name: Maidenhead
• Station ID: 7165
• River name: River Thames
• Typical range: 2.27m to 3.55m
• Highest level on record: 3.87m on 04 January 2003
• Site datum: 19.00mAOD (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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