A Flood Alert was issued for Tidal areas of Shoreham Harbour in Brighton and Hove, West Sussex on 29th September 2026. Affected watercourses included the English Channel.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Arun at Littlehampton rose 4.65m, peaking at 3.09m, while the River Adur at Beeding Bridge climbed 1.87m.
Environment Agency advice issued
There is no longer a threat of flooding, though standing water and debris may still remain. The previous tide of concern has now passed, the weather is more settled and no flooding is expected. We will continue to monitor the situation and will issue further alerts or warnings if necessary. Continue to take care on waterside roads and footpaths and don't put yourself in unnecessary danger. 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 |
|---|---|---|---|
| Littlehampton | River Arun | +4.65m | 3.09m |
| Beeding Bridge | River Adur | +1.87m | 2.62m |
| Barcombe | River Ouse | +0.58m | 3.10m |
| Ferring Outfall | River Arun | +0.10m | -3.36m |