Fareham to Portchester Flood alert 5:46pm, Tuesday 4th November 2025

Flood alert

High tides on Wednesday may lead to flooding.
Flooding is possible for 1 hour either side of Wednesday morning's tide at 10:30 on 05/11/2025.
The weather increases tide table values by 0.31 m. Total forecast tide is 5.36 metres Chart Datum (2.63 mAOD) at Portsmouth. Strong Southerly Force 5 wind. Water may just exceed the top of the main slipway, flooding the road at Lower Quay, Fareham. The lower end of Wallington Shore Road will flood to a depth of 0.1m. Wednesday's tide at 22:45 on 05/11/2025 is forecast to be 13 cm lower (2.5 mAOD). There is no significant rainfall in the forecast outlook. Flood impacts are predicted at each high tide until Saturday (08/11/2025).
We are closely monitoring the situation .
Consider activating any flood protection products you may have .
This message will be updated by 3:00PM on 05 November 2025 or as the situation changes.

Information supplied by the Environment Agency

This information last updated 5:46pm, Tuesday 4th November 2025.

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Flood Warning Area Details

Coastal area from Fareham to Portchester

Region: Solent and South Downs

Country: England

Counties covered: Hampshire, Portsmouth

Watercourses covered: Portsmouth 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 Fareham to Portchester.

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).