River level River Thames at Caversham Lock (downstream data)

Flooding is possible - Be prepared

The latest information indicates flooding is possible - Take action.

Check for flood warnings in this area

Latest recorded level 2.82m at 8:00pm Tuesday 21 January 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
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• Measured level
• When the water level reaches 2.77m 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
2020-01-21T20:00Z	2.82	false
2020-01-21T19:45Z	2.827	false
2020-01-21T19:30Z	2.817	false
2020-01-21T19:15Z	2.826	false
2020-01-21T19:00Z	2.829	false
2020-01-21T18:45Z	2.83	false
2020-01-21T18:30Z	2.833	false
2020-01-21T18:15Z	2.834	false
2020-01-21T18:00Z	2.833	false
2020-01-21T17:45Z	2.83	false
2020-01-21T17:30Z	2.842	false
2020-01-21T17:15Z	2.833	false
2020-01-21T17:00Z	2.843	false
2020-01-21T16:45Z	2.842	false
2020-01-21T16:30Z	2.837	false
2020-01-21T16:15Z	2.847	false
2020-01-21T16:00Z	2.833	false
2020-01-21T15:45Z	2.851	false
2020-01-21T15:30Z	2.848	false
2020-01-21T15:15Z	2.853	false
2020-01-21T15:00Z	2.852	false
2020-01-21T14:45Z	2.856	false
2020-01-21T14:30Z	2.857	false
2020-01-21T14:15Z	2.858	false
2020-01-21T14:00Z	2.862	false
2020-01-21T13:45Z	2.856	false
2020-01-21T13:30Z	2.862	false
2020-01-21T13:15Z	2.863	false
2020-01-21T13:00Z	2.854	false
2020-01-21T12:45Z	2.858	false
2020-01-21T12:30Z	2.854	false
2020-01-21T12:15Z	2.877	false
2020-01-21T12:00Z	2.876	false
2020-01-21T11:45Z	2.881	false
2020-01-21T11:30Z	2.876	false
2020-01-21T11:15Z	2.876	false
2020-01-21T11:00Z	2.873	false
2020-01-21T10:45Z	2.876	false
2020-01-21T10:30Z	2.883	false
2020-01-21T10:15Z	2.888	false
2020-01-21T10:00Z	2.91	false
2020-01-21T09:45Z	2.912	false
2020-01-21T09:30Z	2.914	false
2020-01-21T09:15Z	2.91	false
2020-01-21T09:00Z	2.914	false
2020-01-21T08:45Z	2.912	false
2020-01-21T08:30Z	2.917	false
2020-01-21T08:15Z	2.92	false
2020-01-21T08:00Z	2.92	false
2020-01-21T07:45Z	2.927	false
2020-01-21T07:30Z	2.925	false
2020-01-21T07:15Z	2.928	false
2020-01-21T07:00Z	2.924	false
2020-01-21T06:45Z	2.924	false
2020-01-21T06:30Z	2.927	false
2020-01-21T06:15Z	2.926	false
2020-01-21T06:00Z	2.928	false
2020-01-21T05:45Z	2.928	false
2020-01-21T05:30Z	2.935	false
2020-01-21T05:15Z	2.938	false
2020-01-21T05:00Z	2.93	false
2020-01-21T04:45Z	2.937	false
2020-01-21T04:30Z	2.936	false
2020-01-21T04:15Z	2.933	false
2020-01-21T04:00Z	2.933	false
2020-01-21T04:00Z	2.933	false
2020-01-21T03:45Z	2.941	false
2020-01-21T03:30Z	2.944	false
2020-01-21T03:15Z	2.941	false
2020-01-21T03:00Z	2.942	false
2020-01-21T02:45Z	2.948	false
2020-01-21T02:30Z	2.943	false
2020-01-21T02:15Z	2.947	false
2020-01-21T02:00Z	2.946	false
2020-01-21T01:45Z	2.955	false
2020-01-21T01:30Z	2.952	false
2020-01-21T01:15Z	2.953	false
2020-01-21T01:00Z	2.952	false
2020-01-21T00:45Z	2.955	false
2020-01-21T00:30Z	2.962	false
2020-01-21T00:15Z	2.956	false
2020-01-21T00:00Z	2.962	false
2020-01-20T23:45Z	2.957	false
2020-01-20T23:30Z	2.965	false
2020-01-20T23:15Z	2.965	false
2020-01-20T23:00Z	2.964	false
2020-01-20T22:45Z	2.967	false
2020-01-20T22:30Z	2.978	false
2020-01-20T22:15Z	2.974	false
2020-01-20T22:00Z	2.978	false
2020-01-20T21:45Z	2.974	false
2020-01-20T21:30Z	2.975	false
2020-01-20T21:15Z	2.978	false
2020-01-20T21:00Z	2.984	false
2020-01-20T20:45Z	2.983	false
2020-01-20T20:30Z	2.985	false
2020-01-20T20:15Z	2.98	false
2020-01-20T20:00Z	2.979	false
2020-01-20T19:45Z	2.989	false
2020-01-20T19:30Z	2.989	false
2020-01-20T19:15Z	2.993	false
2020-01-20T19:00Z	2.997	false
2020-01-20T18:45Z	2.999	false
2020-01-20T18:30Z	3	false
2020-01-20T18:15Z	3.001	false
2020-01-20T18:00Z	3.004	false
2020-01-20T17:45Z	3.002	false
2020-01-20T17:30Z	2.999	false
2020-01-20T17:15Z	2.996	false
2020-01-20T17:00Z	3.001	false
2020-01-20T16:45Z	3.002	false
2020-01-20T16:30Z	3.002	false
2020-01-20T16:15Z	2.998	false
2020-01-20T16:00Z	3.004	false
2020-01-20T15:45Z	3.003	false
2020-01-20T15:30Z	3.011	false
2020-01-20T15:15Z	3.009	false
2020-01-20T15:00Z	3.008	false
2020-01-20T14:45Z	3.004	false
2020-01-20T14:30Z	3.024	false
2020-01-20T14:15Z	3.022	false
2020-01-20T14:00Z	3.019	false
2020-01-20T13:45Z	3.017	false
2020-01-20T13:30Z	3.026	false
2020-01-20T13:15Z	3.028	false
2020-01-20T13:00Z	3.016	false
2020-01-20T12:45Z	3.026	false
2020-01-20T12:30Z	3.029	false
2020-01-20T12:15Z	3.029	false
2020-01-20T12:00Z	3.025	false
2020-01-20T12:00Z	3.025	false
2020-01-20T11:45Z	3.025	false
2020-01-20T11:30Z	3.029	false
2020-01-20T11:15Z	3.028	false
2020-01-20T11:00Z	3.032	false
2020-01-20T10:45Z	3.026	false
2020-01-20T10:30Z	3.033	false
2020-01-20T10:15Z	3.034	false
2020-01-20T10:00Z	3.039	false
2020-01-20T09:45Z	3.034	false
2020-01-20T09:30Z	3.043	false
2020-01-20T09:15Z	3.034	false
2020-01-20T09:00Z	3.035	false
2020-01-20T08:45Z	3.04	false
2020-01-20T08:30Z	3.035	false
2020-01-20T08:15Z	3.039	false
2020-01-20T08:00Z	3.043	false
2020-01-20T07:45Z	3.045	false
2020-01-20T07:30Z	3.038	false
2020-01-20T07:15Z	3.043	false
2020-01-20T07:00Z	3.04	false
2020-01-20T06:45Z	3.043	false
2020-01-20T06:30Z	3.049	false
2020-01-20T06:15Z	3.045	false
2020-01-20T06:00Z	3.044	false
2020-01-20T05:45Z	3.049	false
2020-01-20T05:30Z	3.049	false
2020-01-20T05:15Z	3.049	false
2020-01-20T05:00Z	3.045	false
2020-01-20T04:45Z	3.043	false
2020-01-20T04:30Z	3.055	false
2020-01-20T04:15Z	3.05	false
2020-01-20T04:00Z	3.053	false
2020-01-20T03:45Z	3.057	false
2020-01-20T03:30Z	3.055	false
2020-01-20T03:15Z	3.052	false
2020-01-20T03:00Z	3.06	false
2020-01-20T02:45Z	3.057	false
2020-01-20T02:30Z	3.056	false
2020-01-20T02:15Z	3.058	false
2020-01-20T02:00Z	3.057	false
2020-01-20T01:45Z	3.064	false
2020-01-20T01:30Z	3.058	false
2020-01-20T01:15Z	3.068	false
2020-01-20T01:00Z	3.06	false
2020-01-20T00:45Z	3.057	false
2020-01-20T00:30Z	3.065	false
2020-01-20T00:15Z	3.061	false
2020-01-20T00:00Z	3.064	false
2020-01-19T23:45Z	3.066	false
2020-01-19T23:30Z	3.068	false
2020-01-19T23:15Z	3.07	false
2020-01-19T23:00Z	3.067	false
2020-01-19T22:45Z	3.065	false
2020-01-19T22:30Z	3.068	false
2020-01-19T22:15Z	3.069	false
2020-01-19T22:00Z	3.069	false
2020-01-19T21:45Z	3.073	false
2020-01-19T21:30Z	3.065	false
2020-01-19T21:15Z	3.074	false
2020-01-19T21:00Z	3.074	false
2020-01-19T20:45Z	3.078	false
2020-01-19T20:30Z	3.069	false
2020-01-19T20:15Z	3.076	false
2020-01-19T20:00Z	3.071	false
2020-01-19T19:45Z	3.077	false
2020-01-19T19:30Z	3.075	false
2020-01-19T19:15Z	3.08	false
2020-01-19T19:00Z	3.08	false
2020-01-19T18:45Z	3.083	false
2020-01-19T18:30Z	3.078	false
2020-01-19T18:15Z	3.083	false
2020-01-19T18:00Z	3.08	false
2020-01-19T17:45Z	3.082	false
2020-01-19T17:30Z	3.087	false
2020-01-19T17:15Z	3.08	false
2020-01-19T17:00Z	3.085	false
2020-01-19T16:45Z	3.085	false
2020-01-19T16:30Z	3.089	false
2020-01-19T16:15Z	3.081	false
2020-01-19T16:00Z	3.076	false
2020-01-19T15:45Z	3.081	false
2020-01-19T15:30Z	3.078	false
2020-01-19T15:15Z	3.085	false
2020-01-19T15:00Z	3.075	false
2020-01-19T14:45Z	3.072	false
2020-01-19T14:30Z	3.103	false
2020-01-19T14:15Z	3.102	false
2020-01-19T14:00Z	3.1	false
2020-01-19T13:45Z	3.104	false
2020-01-19T13:30Z	3.103	false
2020-01-19T13:15Z	3.1	false
2020-01-19T13:00Z	3.106	false
2020-01-19T12:45Z	3.106	false
2020-01-19T12:30Z	3.103	false
2020-01-19T12:15Z	3.111	false
2020-01-19T12:00Z	3.102	false
2020-01-19T11:45Z	3.106	false
2020-01-19T11:30Z	3.108	false
2020-01-19T11:15Z	3.109	false
2020-01-19T11:00Z	3.109	false
2020-01-19T10:45Z	3.107	false
2020-01-19T10:30Z	3.109	false
2020-01-19T10:15Z	3.111	false
2020-01-19T10:00Z	3.106	false
2020-01-19T09:45Z	3.113	false
2020-01-19T09:30Z	3.116	false
2020-01-19T09:15Z	3.114	false
2020-01-19T09:00Z	3.12	false
2020-01-19T08:45Z	3.121	false
2020-01-19T08:30Z	3.111	false
2020-01-19T08:15Z	3.117	false
2020-01-19T08:00Z	3.123	false
2020-01-19T07:45Z	3.118	false
2020-01-19T07:30Z	3.118	false
2020-01-19T07:15Z	3.124	false
2020-01-19T07:00Z	3.122	false
2020-01-19T06:45Z	3.122	false
2020-01-19T06:30Z	3.121	false
2020-01-19T06:15Z	3.125	false
2020-01-19T06:00Z	3.124	false
2020-01-19T05:45Z	3.124	false
2020-01-19T05:30Z	3.119	false
2020-01-19T05:15Z	3.124	false
2020-01-19T05:00Z	3.12	false
2020-01-19T04:45Z	3.124	false
2020-01-19T04:30Z	3.125	false
2020-01-19T04:15Z	3.129	false
2020-01-19T04:00Z	3.129	false
2020-01-19T03:45Z	3.128	false
2020-01-19T03:30Z	3.129	false
2020-01-19T03:15Z	3.131	false
2020-01-19T03:00Z	3.13	false
2020-01-19T03:00Z	3.13	false
2020-01-19T02:45Z	3.128	false
2020-01-19T02:30Z	3.13	false
2020-01-19T02:15Z	3.134	false
2020-01-19T02:00Z	3.131	false
2020-01-19T01:45Z	3.133	false
2020-01-19T01:30Z	3.136	false
2020-01-19T01:15Z	3.131	false
2020-01-19T01:00Z	3.132	false
2020-01-19T00:45Z	3.133	false
2020-01-19T00:30Z	3.135	false
2020-01-19T00:15Z	3.137	false
2020-01-19T00:00Z	3.136	false
2020-01-18T23:45Z	3.13	false
2020-01-18T23:30Z	3.137	false
2020-01-18T23:15Z	3.134	false
2020-01-18T23:00Z	3.133	false
2020-01-18T22:45Z	3.139	false
2020-01-18T22:30Z	3.136	false
2020-01-18T22:15Z	3.133	false
2020-01-18T22:00Z	3.143	false
2020-01-18T21:45Z	3.138	false
2020-01-18T21:30Z	3.137	false
2020-01-18T21:15Z	3.138	false
2020-01-18T21:00Z	3.138	false
2020-01-18T20:45Z	3.138	false
2020-01-18T20:30Z	3.137	false
2020-01-18T20:15Z	3.139	false
2020-01-18T20:00Z	3.145	false
2020-01-18T19:45Z	3.14	false
2020-01-18T19:30Z	3.139	false
2020-01-18T19:15Z	3.148	false
2020-01-18T19:00Z	3.139	false
2020-01-18T18:45Z	3.143	false
2020-01-18T18:30Z	3.141	false
2020-01-18T18:15Z	3.146	false
2020-01-18T18:00Z	3.148	false
2020-01-18T17:45Z	3.143	false
2020-01-18T17:30Z	3.144	false
2020-01-18T17:15Z	3.146	false
2020-01-18T17:00Z	3.143	false
2020-01-18T16:45Z	3.143	false
2020-01-18T16:30Z	3.141	false
2020-01-18T16:15Z	3.137	false
2020-01-18T16:00Z	3.142	false
2020-01-18T15:45Z	3.146	false
2020-01-18T15:30Z	3.144	false
2020-01-18T15:15Z	3.14	false
2020-01-18T15:00Z	3.142	false
2020-01-18T14:45Z	3.141	false
2020-01-18T14:30Z	3.143	false
2020-01-18T14:15Z	3.143	false
2020-01-18T14:00Z	3.145	false
2020-01-18T13:45Z	3.141	false
2020-01-18T13:30Z	3.14	false
2020-01-18T13:15Z	3.142	false
2020-01-18T13:00Z	3.14	false
2020-01-18T12:45Z	3.135	false
2020-01-18T12:30Z	3.137	false
2020-01-18T12:15Z	3.143	false
2020-01-18T12:00Z	3.141	false
2020-01-18T11:45Z	3.141	false
2020-01-18T11:30Z	3.142	false
2020-01-18T11:15Z	3.142	false
2020-01-18T11:00Z	3.142	false
2020-01-18T10:45Z	3.144	false
2020-01-18T10:30Z	3.141	false
2020-01-18T10:15Z	3.142	false
2020-01-18T10:00Z	3.139	false
2020-01-18T09:45Z	3.143	false
2020-01-18T09:30Z	3.14	false
2020-01-18T09:15Z	3.139	false
2020-01-18T09:00Z	3.137	false
2020-01-18T08:45Z	3.138	false
2020-01-18T08:30Z	3.139	false
2020-01-18T08:15Z	3.138	false
2020-01-18T08:00Z	3.145	false
2020-01-18T07:45Z	3.137	false
2020-01-18T07:30Z	3.139	false
2020-01-18T07:15Z	3.138	false
2020-01-18T07:00Z	3.141	false
2020-01-18T06:45Z	3.139	false
2020-01-18T06:30Z	3.137	false
2020-01-18T06:15Z	3.14	false
2020-01-18T06:00Z	3.137	false
2020-01-18T05:45Z	3.138	false
2020-01-18T05:30Z	3.14	false
2020-01-18T05:15Z	3.136	false
2020-01-18T05:00Z	3.135	false
2020-01-18T04:45Z	3.133	false
2020-01-18T04:30Z	3.133	false
2020-01-18T04:15Z	3.137	false
2020-01-18T04:00Z	3.139	false
2020-01-18T03:45Z	3.138	false
2020-01-18T03:30Z	3.131	false
2020-01-18T03:15Z	3.137	false
2020-01-18T03:00Z	3.129	false
2020-01-18T02:45Z	3.133	false
2020-01-18T02:30Z	3.131	false
2020-01-18T02:15Z	3.13	false
2020-01-18T02:00Z	3.132	false
2020-01-18T01:45Z	3.133	false
2020-01-18T01:30Z	3.128	false
2020-01-18T01:15Z	3.129	false
2020-01-18T01:00Z	3.132	false
2020-01-18T00:45Z	3.125	false
2020-01-18T00:30Z	3.135	false
2020-01-18T00:15Z	3.128	false
2020-01-18T00:00Z	3.125	false
2020-01-17T23:45Z	3.126	false
2020-01-17T23:30Z	3.126	false
2020-01-17T23:15Z	3.123	false
2020-01-17T23:00Z	3.128	false
2020-01-17T22:45Z	3.127	false
2020-01-17T22:30Z	3.123	false
2020-01-17T22:15Z	3.124	false
2020-01-17T22:00Z	3.123	false
2020-01-17T21:45Z	3.121	false
2020-01-17T21:30Z	3.117	false
2020-01-17T21:15Z	3.125	false
2020-01-17T21:00Z	3.117	false
2020-01-17T20:45Z	3.123	false
2020-01-17T20:30Z	3.117	false
2020-01-17T20:15Z	3.124	false
2020-01-17T20:00Z	3.12	false
2020-01-17T19:45Z	3.119	false
2020-01-17T19:30Z	3.121	false
2020-01-17T19:15Z	3.115	false
2020-01-17T19:00Z	3.114	false
2020-01-17T18:45Z	3.112	false
2020-01-17T18:30Z	3.112	false
2020-01-17T18:15Z	3.119	false
2020-01-17T18:00Z	3.115	false
2020-01-17T17:45Z	3.11	false
2020-01-17T17:30Z	3.111	false
2020-01-17T17:15Z	3.113	false
2020-01-17T17:00Z	3.108	false
2020-01-17T16:45Z	3.11	false
2020-01-17T16:30Z	3.107	false
2020-01-17T16:15Z	3.108	false
2020-01-17T16:00Z	3.111	false
2020-01-17T15:45Z	3.111	false
2020-01-17T15:30Z	3.111	false
2020-01-17T15:15Z	3.107	false
2020-01-17T15:00Z	3.108	false
2020-01-17T14:45Z	3.113	false
2020-01-17T14:30Z	3.11	false
2020-01-17T14:15Z	3.11	false
2020-01-17T14:00Z	3.113	false
2020-01-17T13:45Z	3.116	false
2020-01-17T13:30Z	3.117	false
2020-01-17T13:15Z	3.122	false
2020-01-17T13:00Z	3.124	false
2020-01-17T12:45Z	3.125	false
2020-01-17T12:30Z	3.13	false
2020-01-17T12:15Z	3.148	false
2020-01-17T12:00Z	3.124	false
2020-01-17T11:45Z	3.109	false
2020-01-17T11:30Z	3.082	false
2020-01-17T11:15Z	3.082	false
2020-01-17T11:00Z	3.085	false
2020-01-17T10:45Z	3.079	false
2020-01-17T10:30Z	3.083	false
2020-01-17T10:15Z	3.083	false
2020-01-17T10:00Z	3.078	false
2020-01-17T09:45Z	3.079	false
2020-01-17T09:30Z	3.082	false
2020-01-17T09:15Z	3.077	false
2020-01-17T09:00Z	3.082	false
2020-01-17T08:45Z	3.072	false
2020-01-17T08:30Z	3.078	false
2020-01-17T08:15Z	3.08	false
2020-01-17T08:00Z	3.071	false
2020-01-17T07:45Z	3.078	false
2020-01-17T07:30Z	3.076	false
2020-01-17T07:15Z	3.085	false
2020-01-17T07:00Z	3.08	false
2020-01-17T06:45Z	3.078	false
2020-01-17T06:30Z	3.07	false
2020-01-17T06:15Z	3.079	false
2020-01-17T06:00Z	3.075	false
2020-01-17T05:45Z	3.078	false
2020-01-17T05:30Z	3.069	false
2020-01-17T05:15Z	3.07	false
2020-01-17T05:00Z	3.068	false
2020-01-17T04:45Z	3.057	false
2020-01-17T04:30Z	3.055	false
2020-01-17T04:15Z	3.053	false
2020-01-17T04:00Z	3.055	false
2020-01-17T03:45Z	3.051	false
2020-01-17T03:30Z	3.048	false
2020-01-17T03:15Z	3.038	false
2020-01-17T03:00Z	3.047	false
2020-01-17T02:45Z	3.038	false
2020-01-17T02:30Z	3.036	false
2020-01-17T02:15Z	3.043	false
2020-01-17T02:00Z	3.04	false
2020-01-17T01:45Z	3.034	false
2020-01-17T01:30Z	3.036	false
2020-01-17T01:15Z	3.032	false
2020-01-17T01:00Z	3.033	false
2020-01-17T00:45Z	3.029	false
2020-01-17T00:30Z	3.029	false
2020-01-17T00:15Z	3.031	false
2020-01-17T00:00Z	3.025	false
2020-01-16T23:45Z	3.031	false
2020-01-16T23:30Z	3.022	false
2020-01-16T23:15Z	3.026	false
2020-01-16T23:00Z	3.026	false
2020-01-16T22:45Z	3.019	false
2020-01-16T22:30Z	3.029	false
2020-01-16T22:15Z	3.022	false
2020-01-16T22:00Z	3.029	false
2020-01-16T21:45Z	3.02	false
2020-01-16T21:30Z	3.026	false
2020-01-16T21:15Z	3.022	false
2020-01-16T21:00Z	3.016	false
2020-01-16T20:45Z	3.016	false
2020-01-16T20:30Z	3.001	false
2020-01-16T20:15Z	3.001	false
2020-01-16T20:00Z	3.002	false

Forecast data

Key information

• Station name: Caversham Lock (downstream)
• Station ID: 7111
• River name: River Thames
• Typical range: 2.00m to 2.77m
• Highest level on record: 3.76m on 04 January 2003
• Site datum: 33.26mAOD (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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