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No official flood warning is active nearby and the closest river stations are within normal ranges.
Updated 2026-10-09 22:01:27 UTC · Official GOV.UK warnings · Flood preparation & help guide
Gunnislake is a large village in east Cornwall, England, United Kingdom. It is situated in the Tamar Valley approximately ten miles (16 km) north of Plymouth The first woman cabinet minister in the British Empire, Mary Ellen Smith, was born here in 1863.
The nearest watercourse on the river map is the River Tamar, about 20 m from the middle of Gunnislake'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 Tamar nearest the middle of Gunnislake'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.
Gunnislake is monitored by 1 Environment Agency river level station on the River Tamar, in Devon. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The River Tamar is monitored by 1 station (Gunnislake). 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 Gunnislake. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: River Tamar from Greystone Bridge to Cotehele Quay, including Gunnislake, Morwellham Quay and Cotehele; Gunnislake, Calstock, Cargreen, Bere Alston, Morwellham and Cotehele; River Tamar at Calstock and Lower Kelly; River Tavy including Mary Tavy Sewage Works, Harford Bridge Holiday Park, Pitts Cleave Industrial Estate, Tavistock, A386 and property at Lopwell.
There are 18 storm overflows within 5km of Gunnislake. None of the 17 with a reporting monitor are currently discharging (1 has no live status right now). 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 Gunnislake, 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.
Gunnislake gets about 1,389 mm of rain a year on average (wettest month December, 165 mm; driest May, 76 mm). That is 19% wetter 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), 0.1 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.
Gunnislake has river level monitoring on River Tamar — 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 4 recorded flood extents around the town centre since 1703, most recently in 1999. 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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