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No official flood warning is active nearby and the closest river stations are within normal ranges.
Updated 2026-10-09 15:11:59 UTC · Official GOV.UK warnings · Flood preparation & help guide
Long Wittenham is a village and small civil parish about 3 miles (5 km) north of Didcot, and 3.5 miles (5.6 km) southeast of Abingdon. It was part of Berkshire until the 1974 boundary changes transferred it from Berkshire to Oxfordshire, and from the former Wallingford Rural District to the new district of South Oxfordshire.
Towns and villages near Long Wittenham 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 the River Thames, about 60 m from the middle of Long Wittenham's gauges. It flows on to the sea. (An unnamed canal is nearer, about 50 m, but a canal is not followed.)
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 the River Thames nearest the middle of Long Wittenham'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.
Long Wittenham is monitored by 1 Environment Agency river level station on the River Thames, in Oxfordshire. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The River Thames is monitored by 1 station (Clifton Lock). 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 Long Wittenham. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: River Thames at Clifton Hampden, Dorchester and Little Wittenham; River Thames for the Abingdon, including areas between Abingdon down to and including Little Wittenham; River Thame in the Dorchester and Overy areas; River Thames in Abingdon.
There are 3 storm overflows within 5km of Long Wittenham. None of the 3 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 Long Wittenham, 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.
Long Wittenham gets about 639 mm of rain a year on average (wettest month November, 69 mm; driest March, 40 mm). That is 45% 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), 3.1 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.
Long Wittenham has river level monitoring on River Thames — 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 61 recorded flood extents around the town centre since 1703, most recently in 2007. 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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