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Rainfall in Guildford

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

The average of 6 rain gauges within 15km of the centre of Guildford's monitored area, all reporting in the last two days. This October they range from 79.8mm to 120.0mm. The nearest is Rainfall gauge nr Guildford (south), 2.0km away. Rain can be very local, so one street may differ from the average.
3.3mm
Yesterday (26 Oct 2026)
73.4mm
Last 7 days
94.4mm
October so far
vs 81.7mm avg — 16% wetter
0.6mm
Today so far (UTC)

Rain forecast

Next 24 hours: about 4.9mm of rain forecast for the area around Guildford, heaviest in the hour to 07:00 (3.2mm).

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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⚠️ Yesterday's 2.6mm at Rainfall gauge nr Guildford (south) was the wettest day at this gauge since 24 Oct 2026 and in the top 25.2% of 294 rain days in this gauge's 19-month record.
⚠️ Yesterday's 3.3mm at Rainfall gauge nr Guildford (north-west) was the wettest day at this gauge since 24 Oct 2026 and in the top 31.1% of 450 rain days in this gauge's 2-year record.
⚠️ Yesterday's 3.6mm at Rainfall gauge nr Chobham was the wettest day at this gauge since 24 Oct 2026 and in the top 24.5% of 364 rain days in this gauge's 2-year record.

Nearest rain gauges to Guildford

GaugeDistanceYesterday7 daysOctoberToday
Rainfall gauge nr Guildford (south) 2.0km 2.6mm 72.7mm 96.6mm 0.5mm
Rainfall gauge nr Guildford (north-west) 3.5km 3.3mm 72.1mm 92.0mm 0.4mm
Rainfall gauge nr Chobham nr Chobham 9.1km 3.6mm 65.6mm 82.9mm 0.5mm

Last 30 days (average of 6 gauges within 15km)

Daily totals 27 Sep–26 Oct. Wettest day: 20.9mm.

Rain days this October

16 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Guildford (south), against a full-month average of 12.0 rain days (based on 1 months of records at this gauge).

Rainfall year by year in Guildford

2026 so far: 502 mm (1 Jan to 26 Oct), against 563 mm by the same date in an average year (2000–2025) — 11% drier.

One bar per calendar year, the average of 6 local rain gauges: the Environment Agency's quality-checked daily archive, then live telemetry for the latest months. Wettest: 2000 (1,045 mm). Driest: 2005 (520 mm). Average: 743 mm a year.

Wettest days and storms in Guildford

Wettest days since 2000

  1. 48.6 mm 29 Oct 2000up to 55.8 mm at one gauge
  2. 45.9 mm 23 Dec 2013 · 2013-14 UK winter floodsup to 57.0 mm at one gauge
  3. 45.2 mm 2 Oct 2020up to 50.5 mm at one gauge
  4. 42.9 mm 15 Sep 2016up to 71.4 mm at one gauge
  5. 39.6 mm 10 Jun 2019up to 47.9 mm at one gauge

Storms that brought the most rain here

  1. 47.7 mm Storm Callum · 11–14 Oct 2018
  2. 40.6 mm Storm Babet · 18–22 Oct 2023
  3. 39.3 mm Storm Henk · 2–5 Jan 2024
  4. 38.0 mm Storm Angus · 19–21 Nov 2016
  5. 37.4 mm Storm Dennis · 15–16 Feb 2020

Daily totals are the average of 6 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 Guildford

Guildford gets about 722 mm of rain a year on average (wettest month November, 83 mm; driest March, 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), 0.5 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 Guildford

Rain gauge River gauge Storm overflow

Rivers near Guildford

River Wey the largest river near Guildford

Nearest gauge on it: Guildford, 2.9 km away: 1.24 m Falling slightly ▼.

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 Guildford's monitored area.

Storm overflows near Guildford

4 storm overflows within 5 km of the centre of Guildford's monitored area. None of the 2 with a live status is discharging right now, and 2 have 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 Guildford

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

Town in Surrey, England

Guildford is a town in west Surrey, England, around 27 mi (43 km) southwest of central London. As of the 2011 census, the town had a population of about 77,000; it is the seat of the wider Borough of Guildford, which had around 152,148 inhabitants in 2025. Its name is thought to derive from a crossing of the River Wey, a tributary of the River Thames, that flows through the town centre.

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

Frequently asked questions

How much rain fell in Guildford yesterday?

3.3mm of rain fell yesterday (26 Oct 2026), from the average of 6 rain gauges within 15km of Guildford.

Is this month wetter than normal in Guildford?

October so far: 94.4mm vs 81.7mm October average — 16% wetter (the average covers the whole month; we are 27 days in). Figures are the average of 6 rain gauges within 15km.

Where is the nearest rain gauge to Guildford?

Rainfall gauge nr Guildford (south) is the nearest rain gauge, 2.0km from the centre of Guildford'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 Guildford had this month?

16 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Guildford (south), against a full-month average of 12.0 rain days.

What was the wettest year in Guildford?

2000 was the wettest year in the record since 2000, with 1,045 mm from the average of 6 local rain gauges, against an average of 743 mm a year. The driest was 2005, with 520 mm.

What is the wettest day on record in Guildford?

29 Oct 2000: 48.6 mm on average across 6 local rain gauges, and up to 55.8 mm at one of them. Records since 1 Jan 2000.

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