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No official flood warning is active nearby and the closest river stations are within normal ranges.
Updated 2026-10-10 02:22:51 UTC · Official GOV.UK warnings · Flood preparation & help guide
Mithian is a village in Cornwall, England, United Kingdom. It is about six miles (9.6 km) northeast of Redruth and a mile east of St Agnes.
Towns and villages near Mithian 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 Perrancoombe Stream, about 10 m from the middle of Mithian'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 Perrancoombe Stream nearest the middle of Mithian'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.
Mithian is monitored by 1 Environment Agency river level station on the Perrancombe Stream, in Cornwall. Water levels are updated every 15 minutes, providing real-time flood monitoring for the area.
The Perrancombe Stream is monitored by 1 station (Rose in Vale). Each station records water levels continuously, with data synced to FloodRadar every 5 minutes.
There are 5 Environment Agency flood warning areas within 10km of Mithian. When the EA issues a flood warning for any of these areas, it will appear on this page. These include: Perrancoombe Stream from Rose In Vale to Perrancoombe including Rose In Vale, Whitewalls Court and other riverside properties; Bolingey Stream from Bolingey to Perranporth including Nansmellyn Farm, South West Water Pumping Station, the Fire Station and Electrical Sub-Station; Perrancoombe Stream from Perrancoombe to Perranporth including Tywarnhayle Square, Beach Road, Beach Lane, Boscawen Road and Lower Perrancoombe; River Kenwyn from New Mill Dam to Truro including Coosebean Mill, St Georges Villas and St Georges Road.
There are 6 storm overflows within 5km of Mithian. None of the 6 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 Mithian, 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.
Mithian gets about 1,050 mm of rain a year on average (wettest month November, 130 mm; driest June, 58 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), 2.8 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.
Mithian has river level monitoring on Perrancombe Stream — 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.
No recorded flood outline is mapped around the Mithian town centre means no flood was mapped here, which is not evidence none happened: the Environment Agency mapped only some floods, mapping effort rose sharply after about 2000, and surface-water flooding is largely absent from this record. FloodRadar has separately logged 10 flood warnings or alerts for the Cornwall area since February 2026. See the flood history link below.
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