FloodRadar
Log inCreate free account
FloodRadar
Log inCreate free account
No official flood warning is active nearby and the closest river stations are within normal ranges.
Updated 2026-10-09 15:10:53 UTC · Official GOV.UK warnings · Flood preparation & help guide
Hammoon is a small village and civil parish in the English county of Dorset, sited on a river terrace of alluvial silt by the River Stour, about two miles east of the small town of Sturminster Newton. Its name is derived from the Old English ham, meaning dwelling, and the surname of the Norman lord of the manor. In 2001 the parish had 19 households and a population of 49. In 2013 the estimated population of the parish was 40.
The nearest watercourse on the river map is the River Stour, about 10 m from the middle of Hammoon's gauges. It flows on to the sea.
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 Stour nearest the middle of Hammoon'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.
Hammoon is monitored by 1 Environment Agency river level station on the River Stour, in Dorset. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The River Stour is monitored by 1 station (Hammoon). Each station records water levels continuously, with data synced to FloodRadar every 5 minutes.
There are 6 Environment Agency flood warning areas within 10km of Hammoon. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: Groundwater flooding for Sutton Waldron, Iwerne Minster, Iwerne Courntey, Shroton and Stourpaine; Eccliffe, parts of the A30, Stour Provost, Sturminster Newton, Hammoon and parts of the A357; Hammoon, Bere Marsh, Stourpaine, Durweston and Lower Blandford St Mary; Tributaries between Gillingham and Sturminster Newton.
There are 12 storm overflows within 5km of Hammoon. None of the 12 with a reporting monitor are currently discharging. Enable "Sewage" on the map above to see their locations.
6 of them, nearest first, with their own page of live status and past discharges:
If flooding is forecast in Hammoon, 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.
Hammoon gets about 925 mm of rain a year on average (wettest month November, 111 mm; driest June, 53 mm). That is 20% 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), 2.3 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.
Hammoon has river level monitoring on River Stour — 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 3 recorded flood extents around the town centre since 1703, most recently in 2021. 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.
FloodRadar helper · beta