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Rainfall in Gwennap

How much rain fell in Gwennap, Cornwall? Daily, weekly and monthly totals averaged over the Environment Agency rain gauges within 15km, updated every 15 minutes.

The average of 7 rain gauges within 15km of the centre of Gwennap's monitored area, all reporting in the last two days. This October they range from 107.0mm to 603.6mm. The nearest is Rainfall gauge nr Gwennap, 0.0km away. Rain can be very local, so one street may differ from the average.
0.9mm
Yesterday (25 Oct 2026)
85.0mm
Last 7 days
195.6mm
October so far
vs 126.6mm avg — 55% wetter
8.5mm
Today so far (UTC)

Rain forecast

Next 24 hours: about 2.8mm of rain forecast for the area around Gwennap, heaviest in the hour to Tue 01:00 (1.3mm).

A computer model forecast (DWD ICON) for a square about 15 km across, updated 11:05 UK time. It is a forecast, not a measurement, and not a Met Office forecast. Weather data by Open-Meteo (CC BY 4.0).

Next 4 days

Daily totals for UK days from the same computer model; "dry" means under 0.2mm. Forecasts further ahead are less certain.

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⚠️ Yesterday's 1.8mm at Rainfall gauge nr Gwennap was the wettest day at this gauge since 24 Oct 2026 and in the top 51.7% of 635 rain days in this gauge's 2-year record.
⚠️ Yesterday's 1.8mm at Rainfall gauge nr Redruth was the wettest day at this gauge since 24 Oct 2026 and in the top 58% of 550 rain days in this gauge's 2-year record.

Nearest rain gauges to Gwennap

GaugeDistanceYesterday7 daysOctoberToday
Rainfall gauge nr Gwennap 0.0km 1.8mm 94.0mm 133.2mm 9.2mm
Rainfall gauge nr Redruth nr Redruth 6.4km 1.8mm 78.2mm 115.2mm 7.5mm
Rainfall gauge nr Penryn nr Penryn 7.7km 0.6mm 95.0mm 139.2mm 12.2mm

Last 30 days (average of 7 gauges within 15km)

Daily totals 26 Sep–25 Oct. Wettest day: 40.6mm.

Rain days this October

18 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Gwennap, against a full-month average of 20.9 rain days (based on 13 months of records at this gauge).

Rainfall year by year in Gwennap

2026 so far: 1,051 mm (1 Jan to 25 Oct), against 856 mm by the same date in an average year (2002–2025) — 23% wetter.

One bar per calendar year, the average of 7 local rain gauges: the Environment Agency's quality-checked daily archive, then live telemetry for the latest months. Wettest: 2025 (1,388 mm). Driest: 2005 (904 mm). Average: 1,175 mm a year. Striped years have gaps in the record, so no total is shown for them.

Wettest days and storms in Gwennap

Wettest days since 2001

  1. 52.2 mm 13 Nov 2002up to 59.8 mm at one gauge
  2. 49.6 mm 4 Aug 2013up to 69.6 mm at one gauge
  3. 46.8 mm 31 Dec 2002up to 57.0 mm at one gauge
  4. 44.9 mm 15 Apr 2025up to 51.6 mm at one gauge
  5. 44.3 mm 26 Jan 2026 · Storm Chandraup to 51.8 mm at one gauge

Storms that brought the most rain here

  1. 60.9 mm Storm Bert · 22–25 Nov 2024
  2. 60.8 mm Storm Angus · 19–21 Nov 2016
  3. 54.3 mm Storm Callum · 11–14 Oct 2018
  4. 50.6 mm Storm Chandra · 26–27 Jan 2026
  5. 42.9 mm Storm Dennis · 15–16 Feb 2020

Daily totals are the average of 7 local rain gauges, for UTC days; one gauge can catch much more than the average. A storm's figure adds up the rain measured on its dates, from our list of Met Office named storms and major floods — other weather on those days counts too.

Average rainfall in Gwennap

Gwennap gets about 1,240 mm of rain a year on average (wettest month December, 155 mm; driest May, 68 mm). That is close to the UK as a whole, which averages 1,163 mm a year.

Monthly averages in mm. Source: Met Office HadUK-Grid 1991–2020 (5 km grid), 2.7 km from the town's gauge centre. Average rainfall: HadUK-Grid v1.3.2, Met Office. Contains public sector information licensed under the Open Government Licence v3.0. UK comparison: Met Office HadUK-Grid areal series, 1991-2020, Open Government Licence v3.0.

Gauges and storm overflows around Gwennap

Rain gauge River gauge Storm overflow Discharging now

Rivers near Gwennap

Nearest river gauges

A level is shown only when the gauge's latest reading is under 6 hours old. Distances are straight-line from the centre of Gwennap's monitored area.

Storm overflows near Gwennap

11 storm overflows within 5 km of the centre of Gwennap's monitored area. 2 are discharging now, 9 report not discharging.

Discharging now, then the most spills in 2025

Sewage & storm overflows →

Event Duration Monitors show when an overflow may be spilling; they do not confirm it, and this is not advice on water quality. A live status older than two hours counts as no current status. Live status: © South West Water storm overflow activity data, licensed under CC BY 4.0. Annual spill figures: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence (OGL) v3.0.

About Gwennap

Gwennap
Photo: Wikimedia Commons (author and licence on the file page)

Village and civil parish in Cornwall, England

Gwennap is a village and civil parish in Cornwall, England, United Kingdom. It is about five miles (8 km) southeast of Redruth. The hamlets of Burncoose, Comford, Coombe, Crofthandy, Cusgarne, Fernsplatt, Frogpool, Hick's Mill, Tresamble and United Downs lie in the parish, as does Little Beside country house.

From Wikipedia, the free encyclopedia (CC BY-SA 4.0).

Frequently asked questions

How much rain fell in Gwennap yesterday?

0.9mm of rain fell yesterday (25 Oct 2026), from the average of 7 rain gauges within 15km of Gwennap.

Is this month wetter than normal in Gwennap?

October so far: 195.6mm vs 126.6mm October average — 55% wetter (the average covers the whole month; we are 26 days in). Figures are the average of 7 rain gauges within 15km.

Where is the nearest rain gauge to Gwennap?

Rainfall gauge nr Gwennap is the nearest rain gauge, 0.0km from the centre of Gwennap's monitored area. Rain gauges can be several kilometres from the town itself, so very local downpours may not register exactly.

How many rain days has Gwennap had this month?

18 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Gwennap, against a full-month average of 20.9 rain days.

What was the wettest year in Gwennap?

2025 was the wettest year in the record since 2002, with 1,388 mm from the average of 7 local rain gauges, against an average of 1,175 mm a year. The driest was 2005, with 904 mm.

What is the wettest day on record in Gwennap?

13 Nov 2002: 52.2 mm on average across 7 local rain gauges, and up to 59.8 mm at one of them. Records since 14 Nov 2001.

Rainfall data: Environment Agency rain gauges, synced every 15 minutes. Daily totals are computed overnight (UTC days); "today so far" is live. Gauge distances are straight-line from the centre of Gwennap's monitored area — local rainfall can vary over short distances.