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Rainfall in Simister

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

Yellow Yellow warning of rain

Heavy rain brings a high likelihood of moderate impacts from surface water flooding.

In force until 11pm Sat 24 Oct (UK time). Issued 9:05am Sat 24 Oct by the Met Office.

What to expect and what to do

What to expect

  • Spray and flooding on roads probably making journey times longer
  • Bus and train services probably affected with journey times taking longer
  • Some interruption to power supplies and other services likely
  • Flooding of a few homes and businesses is possible

What should I do?

Give yourself the best chance of avoiding delays by checking road conditions if driving, or bus and train timetables, amending your travel plans if necessary.

People cope better with power cuts when they have prepared for them in advance. It's easy to do; consider gathering torches and batteries, a mobile phone power pack and other essential items.

Check if your property could be at risk of flooding. If so, consider preparing a flood plan and an emergency flood kit.

Be prepared for weather warnings to change quickly: when a weather warning is issued, the Met Office recommends staying up to date with the weather forecast in your area.

What should I do? See the Met Office warnings and advice. Met Office Weather Warnings © Crown Copyright 2026

The average of 6 rain gauges within 15km of the centre of Simister's monitored area, all reporting in the last two days. This October they range from 78.8mm to 134.0mm. The nearest is Rainfall gauge nr Prestwich, 0.1km away. Rain can be very local, so one street may differ from the average.
8.2mm
Yesterday (23 Oct 2026)
24.5mm
Last 7 days
100.1mm
October so far
vs 114.7mm avg — 13% drier
14.1mm
Today so far (UTC)

Rain forecast

A Met Office weather warning is in force here: see the warning above.

Next 24 hours: about 2.4mm of rain forecast for the area around Simister, heaviest in the hour to 19:00 (2.3mm).

A computer model forecast (DWD ICON) for a square about 15 km across, updated 17:05 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.

🏠 Thinking of buying in Simister? Get the Property Flood-Risk Report for any Simister postcode — official risk band, recorded floods since 1946, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →
⚠️ Yesterday's 11.8mm at Rainfall gauge nr Prestwich was the wettest day at this gauge since 9 Oct 2026 and in the top 9.9% of 555 rain days in this gauge's 2-year record.
⚠️ Yesterday's 9.8mm at Rainfall gauge nr Bolton was the wettest day at this gauge since 9 Oct 2026 and in the top 11.9% of 573 rain days in this gauge's 2-year record.
⚠️ Yesterday's 3.4mm at Rainfall gauge nr Chadderton was the wettest day at this gauge since 21 Oct 2026 and in the top 38.3% of 517 rain days in this gauge's 2-year record.

Nearest rain gauges to Simister

GaugeDistanceYesterday7 daysOctoberToday
Rainfall gauge nr Prestwich nr Prestwich 0.1km 11.8mm 28.4mm 109.6mm 13.7mm
Rainfall gauge nr Bolton nr Bolton 5.8km 9.8mm 28.5mm 108.6mm 15.2mm
Rainfall gauge nr Chadderton nr Chadderton 6.7km 3.4mm 13.6mm 78.8mm 11.0mm

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

Daily totals 24 Sep–23 Oct. Wettest day: 22.2mm.

Rain days this October

20 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Prestwich, against a full-month average of 20.6 rain days (based on 6 months of records at this gauge).

Rainfall year by year in Simister

2026 so far: 776 mm (1 Jan to 23 Oct), against 819 mm by the same date in an average year (2000–2025) — 5% 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: 2012 (1,487 mm). Driest: 2010 (778 mm). Average: 1,075 mm a year.

Wettest days and storms in Simister

Wettest days since 2000

  1. 73.4 mm 31 Dec 2024up to 81.4 mm at one gauge
  2. 50.3 mm 20 Sep 2025up to 63.3 mm at one gauge
  3. 44.6 mm 16 Jun 2020up to 69.0 mm at one gauge
  4. 42.8 mm 26 Jun 2008up to 65.4 mm at one gauge
  5. 41.3 mm 22 May 2024up to 51.2 mm at one gauge

Storms that brought the most rain here

  1. 71.6 mm Storm Christoph · 19–21 Jan 2021
  2. 46.5 mm Storm Bert · 22–25 Nov 2024
  3. 43.7 mm Storm Bronagh · 20–21 Sep 2018
  4. 42.2 mm Storm Barra · 6–8 Dec 2021
  5. 39.6 mm Storm Ciara · 8–9 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 Simister

Simister gets about 1,004 mm of rain a year on average (wettest month December, 110 mm; driest April, 62 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), 1.8 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 Simister

Rain gauge River gauge Storm overflow Discharging now

Rivers near Simister

River Irwell the largest river near Simister

Nearest gauge on it: Littleton Road River, 3.3 km away: 1.44 m Rising ▲.

Every gauge on the River Irwell →

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 Simister's monitored area.

Storm overflows near Simister

92 storm overflows within 5 km of the centre of Simister's monitored area. 17 are discharging now, 66 report not discharging, and 9 have no current status.

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: © United Utilities 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 Simister

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

Human settlement in England

Simister is a small suburb in the Metropolitan Borough of Bury, Greater Manchester, England. Historically part of Lancashire, it is located between the districts of Prestwich, Rhodes and Langley. Although the village's proximity to Manchester means the residential population is mainly made up of commuters, the village has a rural feel with much agricultural activity.

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

Frequently asked questions

How much rain fell in Simister yesterday?

8.2mm of rain fell yesterday (23 Oct 2026), from the average of 6 rain gauges within 15km of Simister.

Is this month wetter than normal in Simister?

October so far: 100.1mm vs 114.7mm October average — 13% drier (the average covers the whole month; we are 24 days in). Figures are the average of 6 rain gauges within 15km.

Where is the nearest rain gauge to Simister?

Rainfall gauge nr Prestwich is the nearest rain gauge, 0.1km from the centre of Simister'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 Simister had this month?

20 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Prestwich, against a full-month average of 20.6 rain days.

What was the wettest year in Simister?

2012 was the wettest year in the record since 2000, with 1,487 mm from the average of 6 local rain gauges, against an average of 1,075 mm a year. The driest was 2010, with 778 mm.

What is the wettest day on record in Simister?

31 Dec 2024: 73.4 mm on average across 6 local rain gauges, and up to 81.4 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 Simister's monitored area — local rainfall can vary over short distances.