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Flood Warning: Portsmouth

Message Last Updated:
2026-01-08 12:52:00

Severity Last Changed:
2026-01-08 12:52:00

High tides on Friday may lead to flooding. 

Flooding is possible for 1 hour either side of Friday's early morning tide at 03:00 on 09/01/2026. 

Storm Goretti increases tide table values by 0.82 m. Total forecast tide is 5.27 metres Chart Datum (2.54 mAOD) at Portsmouth with strong North Westerly Force 7 wind. In Old Portsmouth, the tide may just exceed the top of the main slipway causing minor road flooding in East Street and the boat yards at The Camber. Spray overtopping of sea walls at Southsea promenade and Eastern road is also expected. To protect property in Old Portsmouth, tidal defence gates will be closed. Friday's tide at 15:15 09/01/2026 will be 95 cm lower (1.57 mAOD), no further flood impacts are expected.. 

We are liaising with emergency services and local authorities over flood defence gate closures around Portsmouth. 

Don't put yourself or others at risk . Avoid Southsea seafront. Shingle can be thrown by wind and waves. 

This message will be updated by 12:00PM on 09 January 2026 or as the situation changes.