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No official flood warning is active nearby and the closest river stations are within normal ranges.
Updated 2026-10-09 13:00:45 UTC · Official GOV.UK warnings · Flood preparation & help guide
Bishop's Waltham is a medieval market town situated at the source of the River Hamble in Hampshire, England. It has a foot in the South Downs National Park and is located at the midpoint of a long-established route between Winchester and Portsmouth. It is home to the ruins of Bishop's Waltham Palace, a Scheduled Ancient Monument under English Heritage management, and a well-preserved high street with many listed buildings which now house independent shops.
Towns and villages near Bishops Waltham with a page of their own: the homes in a flood risk area there, the nearest river gauges, and recorded floods.
Place names: Contains OS data © Crown copyright and database rights 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Contains National Statistics data © Crown copyright and database right 2026. Licensed under the Open Government Licence v3.0.
The nearest watercourse on the river map is an unnamed stream, about 10 m from the middle of Bishops Waltham's gauges. It flows into the River Hamble about 550 m downstream.
A gauge downstream shows water that has already passed this point; one upstream sees it first. Distances along the river are from the point on an unnamed stream nearest the middle of Bishops Waltham's gauges. From Ordnance Survey’s river map (OS Open Rivers), which leaves out small streams, ditches and culverts, so a nearer one may exist. This describes where water goes on the map; it says nothing about flooding at any address. Contains OS data © Crown copyright and database rights 2026.
Bishops Waltham is monitored by 1 Environment Agency river level station on the River Hamble, in Hampshire. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The River Hamble is monitored by 1 station (North Pond). Each station records water levels continuously, with data synced to FloodRadar every 5 minutes.
There are 8 Environment Agency flood warning areas within 10km of Bishops Waltham. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: Bishops Waltham including north and south ponds; River Hamble from Northbrook to Botley; River Hamble through Waltham Chase, Durley Mill, Botley; River Meon from Frogmore to the M27.
There are 4 storm overflows within 5km of Bishops Waltham. None of the 4 with a reporting monitor are currently discharging. Enable "Sewage" on the map above to see their locations.
Each has its own page of live status and past discharges:
If flooding is forecast in Bishops Waltham, call Floodline on 0345 988 1188 for the latest information. Move valuables upstairs, turn off gas and electricity if safe to do so, and avoid walking or driving through flood water. Sign up for flood warnings on any station page above to receive email alerts when water levels rise. For emergency numbers, a preparation checklist and insurance guidance, see our flood help & preparation guide.
Bishops Waltham gets about 913 mm of rain a year on average (wettest month November, 109 mm; driest May, 52 mm). That is 21% drier than the UK as a whole, which averages 1,163 mm a year. See the rain gauges →
A thirty-year average for the area, not a forecast and not a flood risk on its own. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.2 km away. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0.
Floods whose mapped extent (EA Recorded Flood Outlines) reached within ~5 km of the town centre — most recent first. These are records of mapped extents, not a full list of floods. See them on the map →
Records, not floods: no outline on the record is not evidence a place has not flooded.
Current verdict: Normal. No official flood warning is active nearby and the closest river stations are within normal ranges.
Bishops Waltham has river level monitoring on River Hamble — 1 monitoring station in total.
Use the GOV.UK Check for Flooding service (check-for-flooding.service.gov.uk) or call Floodline on 0345 988 1188 (24 hours). You can also set up free FloodRadar email or browser alerts from any station page above.
Follow official advice: move valuables and vehicles to safety, never walk or drive through flood water, turn off gas and electricity if safe, and check on vulnerable neighbours. See our flood preparation guide at floodradar.co.uk/flood-help.
Yes — the Environment Agency's Recorded Flood Outlines dataset shows 7 recorded flood extents around the town centre since 1703, most recently in 2014. That is a count of mapped extents, not of separate floods. Records, not floods: no outline on the record is not evidence a place has not flooded. See the flood history link below.
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