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Rainfall in Coldwaltham

How much rain fell in Coldwaltham, West Sussex? 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 8 rain gauges within 15km of the centre of Coldwaltham's monitored area, all reporting in the last two days. This October they range from 101.1mm to 153.3mm. The nearest is Rainfall gauge nr Horsham, 0.1km away. Rain can be very local, so one street may differ from the average.
28.3mm
Yesterday (23 Oct 2026)
76.1mm
Last 7 days
121.3mm
October so far
vs 114.2mm avg — 6% wetter
16.8mm
Today so far (UTC)

Rain forecast

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

Next 24 hours: about 7.3mm of rain forecast for the area around Coldwaltham, 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 Coldwaltham? Get the Property Flood-Risk Report for any Coldwaltham postcode — official risk band, recorded floods since 1946, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →
⚠️ Yesterday's 22.9mm at Rainfall gauge nr Horsham was the wettest day at this gauge since 22 Oct 2026 and in the top 3% of 474 rain days in this gauge's 2-year record.
⚠️ Yesterday's 32.1mm at Rainfall gauge nr Storrington was the wettest day at this gauge since 27 Jan 2026, a new October daily high in this gauge's 2-year record, and in the top 0.5% of 575 rain days ranked here.
⚠️ Yesterday's 21.7mm at Rainfall gauge nr Kirdford was the wettest day at this gauge since 27 Jan 2026 and in the top 1.8% of 455 rain days in this gauge's 2-year record.

Nearest rain gauges to Coldwaltham

GaugeDistanceYesterday7 daysOctoberToday
Rainfall gauge nr Horsham nr Horsham 0.1km 22.9mm 69.5mm 115.5mm 18.3mm
Rainfall gauge nr Storrington nr Storrington 4.8km 32.1mm 81.8mm 133.0mm 19.0mm
Rainfall gauge nr Kirdford nr Kirdford 8.4km 21.7mm 68.1mm 101.1mm 8.8mm

Last 30 days (average of 8 gauges within 15km)

Daily totals 24 Sep–23 Oct. Wettest day: 28.3mm.

Rain days this October

14 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Horsham, against a full-month average of 18.2 rain days (based on 2 months of records at this gauge).

Rainfall year by year in Coldwaltham

2026 so far: 671 mm (1 Jan to 23 Oct), against 626 mm by the same date in an average year (2000–2025) — 7% wetter.

One bar per calendar year, the average of 8 local rain gauges: the Environment Agency's quality-checked daily archive, then live telemetry for the latest months. Wettest: 2012 (1,151 mm). Driest: 2003 (576 mm). Average: 854 mm a year.

Wettest days and storms in Coldwaltham

Wettest days since 2000

  1. 58.5 mm 10 Jun 2012up to 64.4 mm at one gauge
  2. 49.7 mm 29 Oct 2000up to 104.0 mm at one gauge
  3. 44.7 mm 2 Oct 2020up to 58.8 mm at one gauge
  4. 42.0 mm 5 Nov 2000up to 87.8 mm at one gauge
  5. 41.2 mm 25 Aug 2010up to 45.4 mm at one gauge

Storms that brought the most rain here

  1. 70.8 mm Storm Babet · 18–22 Oct 2023
  2. 54.7 mm Storm Angus · 19–21 Nov 2016
  3. 40.6 mm Storm Henk · 2–5 Jan 2024
  4. 38.9 mm St Jude storm 2013 · 27–28 Oct 2013
  5. 38.5 mm Storm Dennis · 15–16 Feb 2020

Daily totals are the average of 8 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 Coldwaltham

Coldwaltham gets about 918 mm of rain a year on average (wettest month November, 111 mm; driest May, 55 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), 0.8 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 Coldwaltham

Rain gauge River gauge Storm overflow

Rivers near Coldwaltham

River Rother the largest river near Coldwaltham

Nearest gauge on it: Hardham, 0.0 km away: 0.39 m Steady.

Every gauge on the River Rother →

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 Coldwaltham's monitored area.

Storm overflows near Coldwaltham

4 storm overflows within 5 km of the centre of Coldwaltham's monitored area. None of the 4 with a live status is 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: © Southern 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 Coldwaltham

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

Village and parish in West Sussex, England

Coldwaltham is a village and civil parish in the Horsham District of West Sussex, England. It is divided in two by the A29 road and lies 2.4 miles (3.9 km) southwest of Pulborough which has both a railway station on the Arun Valley Line and a bus connection to Worthing. It is around a 30-minute drive from Gatwick Airport. The 2011 Census population included the village of Hardham plus hamlet of Watersfield.

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

Frequently asked questions

How much rain fell in Coldwaltham yesterday?

28.3mm of rain fell yesterday (23 Oct 2026), from the average of 8 rain gauges within 15km of Coldwaltham.

Is this month wetter than normal in Coldwaltham?

October so far: 121.3mm vs 114.2mm October average — 6% wetter (the average covers the whole month; we are 24 days in). Figures are the average of 8 rain gauges within 15km.

Where is the nearest rain gauge to Coldwaltham?

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

14 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Horsham, against a full-month average of 18.2 rain days.

What was the wettest year in Coldwaltham?

2012 was the wettest year in the record since 2000, with 1,151 mm from the average of 8 local rain gauges, against an average of 854 mm a year. The driest was 2003, with 576 mm.

What is the wettest day on record in Coldwaltham?

10 Jun 2012: 58.5 mm on average across 8 local rain gauges, and up to 64.4 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 Coldwaltham's monitored area — local rainfall can vary over short distances.