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How much rain fell in Southampton, Hampshire? 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
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
A Met Office weather warning is in force here: see the warning above.
Next 24 hours: about 12.8mm of rain forecast for the area around Southampton, heaviest in the hour to 18:00 (4.5mm).
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).
Daily totals for UK days from the same computer model; "dry" means under 0.2mm. Forecasts further ahead are less certain.
| Gauge | Distance | Yesterday | 7 days | October | Today |
|---|---|---|---|---|---|
| Rainfall gauge nr Otterbourne nr Otterbourne | 9.2km | 14.5mm | 60.2mm | 90.0mm | 11.5mm |
| Rainfall gauge nr Romsey nr Romsey | 10.4km | 12.0mm | 59.4mm | 94.5mm | 14.1mm |
| Rainfall gauge nr Bishop's Waltham nr Bishop's Waltham | 10.8km | 21.6mm | 73.4mm | 97.5mm | 12.9mm |
Daily totals 24 Sep–23 Oct. Wettest day: 23.9mm.
13 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Otterbourne, against a full-month average of 19.5 rain days (based on 2 months of records at this gauge).
2026 so far: 669 mm (1 Jan to 23 Oct), against 657 mm by the same date in an average year (2000–2025) — about average.
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 (1,240 mm). Driest: 2003 (659 mm). Average: 903 mm a year.
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.
Southampton gets about 842 mm of rain a year on average (wettest month November, 103 mm; driest July, 47 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), 2.5 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.
Rain gauge River gauge Storm overflow Discharging now
A level is shown only when the gauge's latest reading is under 6 hours old. Distances are straight-line from the centre of Southampton's monitored area.
23 storm overflows within 5 km of the centre of Southampton's monitored area. 4 are discharging now, 14 report not discharging, and 5 have no current status.
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.
City in Hampshire, England
Southampton is a port city and unitary authority in Hampshire, England. It is located approximately 80 miles (130 km) southwest of London, 20 miles (32 km) west of Portsmouth, and 20 miles (32 km) southeast of Salisbury. Southampton had a population of 248,922 at the 2021 census, making it one of the most populous cities in southern England.
From Wikipedia, the free encyclopedia (CC BY-SA 4.0).
16.0mm of rain fell yesterday (23 Oct 2026), from the average of 5 rain gauges within 15km of Southampton.
October so far: 101.5mm vs 110.1mm October average — 8% drier (the average covers the whole month; we are 24 days in). Figures are the average of 5 rain gauges within 15km.
Rainfall gauge nr Otterbourne is the nearest rain gauge, 9.2km from the centre of Southampton's monitored area. Rain gauges can be several kilometres from the town itself, so very local downpours may not register exactly.
13 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Otterbourne, against a full-month average of 19.5 rain days.
2014 was the wettest year in the record since 2000, with 1,240 mm from the average of 5 local rain gauges, against an average of 903 mm a year. The driest was 2003, with 659 mm.
23 Dec 2013: 50.6 mm on average across 5 local rain gauges, and up to 60.0 mm at one of them, during 2013-14 UK winter floods. 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 Southampton's monitored area — local rainfall can vary over short distances.
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