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Rainfall in Old Windsor

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

The average of 5 rain gauges within 15km of the centre of Old Windsor's monitored area, all reporting in the last two days. This October they range from 73.6mm to 87.6mm. The nearest is Rainfall gauge nr Old Windsor, 0.0km away. Rain can be very local, so one street may differ from the average.
3.0mm
Yesterday (26 Oct 2026)
65.1mm
Last 7 days
82.4mm
October so far
vs 69.0mm avg — 19% wetter
0.2mm
Today so far (UTC)

Rain forecast

Next 24 hours: about 1.3mm of rain forecast for the area around Old Windsor, heaviest in the hour to 06:00 (0.7mm).

A computer model forecast (DWD ICON) for a square about 15 km across, updated Mon 23:05 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 3 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 Old Windsor

GaugeDistanceYesterday7 daysOctoberToday
Rainfall gauge nr Old Windsor 0.0km 3.3mm 63.0mm 81.0mm 0.7mm
Rainfall gauge nr Thorpe nr Thorpe 7.9km 2.9mm 70.2mm 87.0mm 0.1mm
Rainfall gauge nr Greater London nr Greater London 8.4km 2.2mm 59.2mm 73.6mm 0.2mm

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

Daily totals 27 Sep–26 Oct. Wettest day: 19.8mm.

Rain days this October

15 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Old Windsor, against a full-month average of 15.9 rain days (based on 1 months of records at this gauge).

Rainfall year by year in Old Windsor

2026 so far: 440 mm (1 Jan to 26 Oct), against 495 mm by the same date in an average year (2004–2025) — 11% drier.

One bar per calendar year, the average of 5 local rain gauges: the Environment Agency's quality-checked daily archive, then live telemetry for the latest months. Wettest: 2014 (871 mm). Driest: 2005 (479 mm). Average: 632 mm a year.

Wettest days and storms in Old Windsor

Wettest days since 2000

  1. 44.8 mm 29 Oct 2000up to 45.4 mm at one gauge
  2. 43.8 mm 2 Oct 2020up to 50.5 mm at one gauge
  3. 37.5 mm 15 Sep 2016up to 71.4 mm at one gauge
  4. 36.9 mm 10 Jun 2019up to 47.9 mm at one gauge
  5. 36.8 mm 20 Jul 2007 · 2007 UK floodsup to 52.2 mm at one gauge

Storms that brought the most rain here

  1. 48.1 mm Storm Callum · 11–14 Oct 2018
  2. 44.2 mm Storm Babet · 18–22 Oct 2023
  3. 30.9 mm Storm Angus · 19–21 Nov 2016
  4. 28.7 mm Storm Henk · 2–5 Jan 2024
  5. 27.8 mm St Jude storm 2013 · 27–28 Oct 2013

Daily totals are the average of 5 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 Old Windsor

Old Windsor gets about 625 mm of rain a year on average (wettest month November, 69 mm; driest March, 40 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), 2.9 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 Old Windsor

Rain gauge River gauge Storm overflow

Rivers near Old Windsor

River Thames the largest river near Old Windsor

Nearest gauge on it: Old Windsor Lock, 0.4 km away: 0.29 m Steady.

Every gauge on the River Thames →

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 Old Windsor's monitored area.

Storm overflows near Old Windsor

1 storm overflow within 5 km of the centre of Old Windsor's monitored area. The 1 with a live status is not discharging right now.

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 Old Windsor

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

Village and civil parish in England

Old Windsor is a village and civil parish, in the Royal Borough of Windsor and Maidenhead, in Berkshire, England. It is bounded by the River Thames to the east and the Windsor Great Park to the west.

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

Frequently asked questions

How much rain fell in Old Windsor yesterday?

3.0mm of rain fell yesterday (26 Oct 2026), from the average of 5 rain gauges within 15km of Old Windsor.

Is this month wetter than normal in Old Windsor?

October so far: 82.4mm vs 69.0mm October average — 19% wetter (the average covers the whole month; we are 27 days in). Figures are the average of 5 rain gauges within 15km.

Where is the nearest rain gauge to Old Windsor?

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

15 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Old Windsor, against a full-month average of 15.9 rain days.

What was the wettest year in Old Windsor?

2014 was the wettest year in the record since 2004, with 871 mm from the average of 5 local rain gauges, against an average of 632 mm a year. The driest was 2005, with 479 mm.

What is the wettest day on record in Old Windsor?

29 Oct 2000: 44.8 mm on average across 5 local rain gauges, and up to 45.4 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 Old Windsor's monitored area — local rainfall can vary over short distances.