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Rainfall in Farnham

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

Another rain gauge is also registered under the name Farnham: Rainfall gauge nr Farnham (Suffolk) — see its gauge page. The figures here are for Farnham, Surrey.

The average of 5 rain gauges within 15km of the centre of Farnham's monitored area, all reporting in the last two days. This October they range from 77.8mm to 109.1mm. The nearest is Rainfall gauge nr Farnham, 0.0km away. Rain can be very local, so one street may differ from the average.
0.1mm
Yesterday (25 Oct 2026)
71.0mm
Last 7 days
92.8mm
October so far
vs 81.8mm avg — 13% wetter
1.7mm
Today so far (UTC)

Rain forecast

Next 24 hours: about 3.1mm of rain forecast for the area around Farnham, heaviest in the hour to Tue 06:00 (1.7mm).

A computer model forecast (DWD ICON) for a square about 15 km across, updated 05:05 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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Nearest rain gauges to Farnham

GaugeDistanceYesterday7 daysOctoberToday
Rainfall gauge nr Farnham 0.0km 0.0mm 68.2mm 91.9mm 1.4mm
Rainfall gauge nr Guildford nr Guildford 11.4km 0.0mm 69.7mm 90.1mm 1.7mm
Rainfall gauge nr Camberley nr Camberley 11.6km 0.0mm 59.3mm 77.8mm 1.8mm

Last 30 days (average of 5 gauges within 15km)

Daily totals 26 Sep–25 Oct. Wettest day: 17.1mm.

Rain days this October

15 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Farnham, against a full-month average of 18.1 rain days (based on 1 months of records at this gauge).

Rainfall year by year: south-east and central southern England

The rain gauges near Farnham do not have a long enough daily record yet, so this is the Met Office series for the wider region.

Yearly rainfall 1986–2025, with the dashed line at the 1991–2020 average. Wettest: 2000 (1,109 mm). Driest: 2005 (610 mm). Source: Met Office HadUK-Grid areal series, Open Government Licence v3.0.

Average rainfall in Farnham

Farnham gets about 770 mm of rain a year on average (wettest month November, 91 mm; driest May, 46 mm). That is drier than 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), 2.1 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 Farnham

Rain gauge River gauge Storm overflow

Rivers near Farnham

River Wey the largest river near Farnham

Nearest gauge on it: Farnham, 2.7 km away: 0.12 m Steady.

Every gauge on the River Wey →

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 Farnham's monitored area.

Storm overflows near Farnham

4 storm overflows within 5 km of the centre of Farnham's monitored area. None of the 3 with a live status is discharging right now, and 1 has no current status.

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: © Thames 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 Farnham

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

Market town in Surrey, England

Farnham is a market town and civil parish in Surrey, England, around 36 miles (58 km) southwest of London. It is in the Borough of Waverley, close to the county border with Hampshire. The town is on the north branch of the River Wey, a tributary of the Thames, and is at the western end of the North Downs. The civil parish, which includes the villages of Badshot Lea, Hale and Wrecclesham, covers 14.1 sq mi (37 km2) and had a population of 39,488 in 2011.

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

Frequently asked questions

How much rain fell in Farnham yesterday?

0.1mm of rain fell yesterday (25 Oct 2026), from the average of 5 rain gauges within 15km of Farnham.

Is this month wetter than normal in Farnham?

October so far: 92.8mm vs 81.8mm October average — 13% wetter (the average covers the whole month; we are 26 days in). Figures are the average of 5 rain gauges within 15km.

Where is the nearest rain gauge to Farnham?

Rainfall gauge nr Farnham is the nearest rain gauge, 0.0km from the centre of Farnham'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 Farnham had this month?

15 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Farnham, against a full-month average of 18.1 rain days.

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 Farnham's monitored area — local rainfall can vary over short distances.