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No official flood warning is active nearby and the closest river stations are within normal ranges.
Updated 2026-10-10 05:43:06 UTC · Official GOV.UK warnings · Flood preparation & help guide
Pentewan is a coastal village and former port in south Cornwall, England, United Kingdom. It is situated at grid reference SX 019 472 3 miles (4.8 km) south of St Austell at the mouth of the St Austell River.
Towns and villages near Pentewan 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 Pentewan Stream, about 10 m from the middle of Pentewan's gauges.
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 Pentewan Stream nearest the middle of Pentewan'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.
Pentewan is monitored by 1 Environment Agency river level station on the St Austell River, in Cornwall. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The St Austell River is monitored by 1 station (Pentewan). 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 Pentewan. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: Mevagissey Stream at Mevagissey including the Fire Station, Valley Road, Chapel Street, Church Street, Fore Street and the Harbour; St Blazey Stream at St Blazey including low lying properties at Prideaux Road, Station Road, St Blazey Road, Aberdeen Close, Roselyon Place, Middleway, Harbour Road and Tredenham Close; River Par at Par and St Blazey including the A390, the Sports Centre, St Andrews Road, Railway Station and Station Road; Lizard Point to Gribbin Head including Coverack, the tidal Helford Estuary, Falmouth, St Mawes, Gorran Haven, Portmellon, Mevagissey, Pentewan and Par.
There are 11 storm overflows within 5km of Pentewan. None of the 11 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 Pentewan, 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.
Pentewan gets about 1,203 mm of rain a year on average (wettest month November, 144 mm; driest June, 68 mm). That is close to 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), 0.6 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.
Pentewan has river level monitoring on St Austell River — 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 8 recorded flood extents around the town centre since 1703, most recently in 2010. 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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