Portsmouth Flood alert 3:26pm, Wednesday 5th November 2025

Flooding possible. Be prepared.

Flood alert

High tides on Thursday may lead to flooding.
Flooding is possible for 1 hour either side of Thursday morning's tide at 11:15 on 06/11/2025.
The weather increases tide table values by 0.28 m. Total forecast tide is 5.41 metres Chart Datum (2.68 mAOD) at Portsmouth. Light South Easterly Force 4 wind. Overtopping of the sea wall into the garden of the Still and West Pub, Old Portsmouth is expected. The road will flood at East Street and impact boat yards at The Camber. The tidal defence gates at Old Portsmouth will be closed. Thursday's tide at 23:30 on 06/11/2025 is forecast to be 19 cm lower (2.49 mAOD).
We are liaising with emergency services and local authorities .
Don't put yourself or others at risk .
This message will be updated by 3:00PM on 06 November 2025 or as the situation changes.

Information supplied by the Environment Agency

This information last updated 3:26pm, Wednesday 5th November 2025.

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Flood Warning Area Details

Coastal area around Portsmouth

Region: Solent and South Downs

Country: England

Counties covered: Portsmouth

Watercourses covered: The Solent, Portsmouth Harbour, Langstone Harbour

Area covered by this alert location

The area bounded in blue on the map shows the area covered by flood alerts and warnings for Portsmouth.

Note: the area shown on the map is the area covered by flood alerts and warnings. It is not a live map of current flooding. The area covered broadly equates to the area where the risk of flooding in any year is greater than 1% (the "hundred year" flood risk).