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Conditions are worth watching: the Environment Agency has a Flood Alert in force for The Essex coast at Coalhouse Fort — flooding is possible from 11:30pm Friday 9th October through to 1:30am on Saturday 10th October. Flooding is possible — be prepared and keep an eye on updates.
Updated 2026-10-09 15:10:59 UTC · Official GOV.UK warnings · Flood preparation & help guide
Hadlow is a village and civil parish in the borough of Tonbridge and Malling in Kent, England. It is situated in the Medway valley, north-east of Tonbridge and south-west of Maidstone.
Towns and villages near Hadlow with a page of their own: the homes in a flood risk area there, the nearest river gauges, and recorded floods.
East Peckham · Five Oak Green · Hilden Park · Paddock Wood · Royal Tunbridge Wells
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 Bourne, about 20 m from the middle of Hadlow's gauges. It flows into the River Medway about 4.7 km 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 the River Bourne nearest the middle of Hadlow'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.
Hadlow is monitored by 1 Environment Agency river level station on the Bourne Tributary Medway, in Kent. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The Bourne Tributary Medway is monitored by 1 station (Hadlow). 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 Hadlow. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: River Bourne from Hadlow to East Peckham, including Golden Green and Little Mill; Bourne at Hadlow and Golden Green; River Medway from Penshurst to Hampstead Lock at Yalding, including the Leigh Flood Storage area, the Ensfield Road, Tonbridge, Paddock Wood, the Hop Farm, East Peckham, Branbridges and Hale Street; River Medway at Tonbridge and Hildenborough including Tudeley, Golden Green, Whetsted and Hartlake.
There are 9 storm overflows within 5km of Hadlow. None of the 9 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 Hadlow, 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.
Hadlow gets about 676 mm of rain a year on average (wettest month November, 77 mm; driest March, 43 mm). That is 42% 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: Watch. Conditions are worth watching: the Environment Agency has a Flood Alert in force for The Essex coast at Coalhouse Fort — flooding is possible from 11:30pm Friday 9th October through to 1:30am on Saturday 10th October. Flooding is possible — be prepared and keep an eye on updates.
Hadlow has river level monitoring on Bourne Tributary Medway — 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 1958. 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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