A Flood Alert was issued for Tidal Thames riverside from Putney Bridge to Teddington Weir in Greater London, Hammersmith and Fulham, Hounslow, Richmond upon Thames, Wandsworth on 29th September 2026. Affected watercourses included the River Thames.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Thames at Thames Ditton Island rose 0.51m, peaking at 4.80m, while the River Thames at Kingston climbed 0.41m.
Environment Agency advice issued
There is no longer a threat of flooding, though standing water and debris may still remain. Weather conditions are expected to improve and no further flooding is expected. We will continue to monitor the situation and will issue further alerts or warnings if necessary. If you have been evacuated only return to your property once the emergency services have advised that it is safe to do so. Never drive through flood water, just 30cm of fast flowing water is enough to move your car.
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Thames Ditton Island | River Thames | +0.51m | 4.80m |
| Kingston | River Thames | +0.41m | 4.73m |
| Teddington Lock | River Thames | +0.36m | 0.31m |
| Trowlock Island | River Thames | +0.36m | 4.69m |
| Molesey Lock | River Thames | +0.30m | 0.29m |
| Sunbury Lock | River Thames | +0.13m | 0.30m |
| Penton Hook | River Thames | +0.07m | 0.19m |
| Shepperton Lock | River Thames | +0.07m | 0.16m |