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How much rain fell in Greater London, Greater London? Daily, weekly and monthly totals averaged over the Environment Agency rain gauges within 15km, updated every 15 minutes.
Next 24 hours: little or no rain forecast for the area around Greater London (under 0.2mm).
A computer model forecast (DWD ICON) for a square about 15 km across, updated Tue 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).
Daily totals for UK days from the same computer model; "dry" means under 0.2mm. Forecasts further ahead are less certain.
Chance of rain in Greater London
Met Office forecast for the next 24 hours: less than 5% chance of more than 1 mm, less than 5% chance of more than 4 mm and less than 5% chance of more than 12 mm.
Next 48 hours: less than 5% chance of more than 1 mm.
Updated 16:40 on Tue 27 Oct. For the Met Office forecast point under 1 km from Greater London. Powered by Met Office data.
| Gauge | Distance | Yesterday | 7 days | October | Today |
|---|---|---|---|---|---|
| Rainfall gauge nr Greater London (west) | 6.9km | 2.8mm | 59.4mm | 77.0mm | 0.0mm |
| Rainfall gauge nr Greater London (south) | 7.1km | 4.4mm | 58.7mm | 84.3mm | 0.0mm |
| Rainfall gauge nr Greater London (south-west) | 8.6km | 4.3mm | 57.0mm | 80.0mm | 0.0mm |
Daily totals 28 Sep–27 Oct. Wettest day: 17.9mm.
15 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Greater London (west), against a full-month average of 16.0 rain days (based on 2 months of records at this gauge).
2026 so far: 411 mm (1 Jan to 26 Oct), against 479 mm by the same date in an average year (2000–2025) — 14% drier.
One bar per calendar year, the average of 7 local rain gauges: the Environment Agency's quality-checked daily archive, then live telemetry for the latest months. Wettest: 2000 (823 mm). Driest: 2003 (451 mm). Average: 615 mm a year.
Daily totals are the average of 7 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.
Greater London gets about 614 mm of rain a year on average (wettest month October, 66 mm; driest March, 37 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), 1.3 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
Nearest gauge on it: Westminster (Thames Tideway), 2.1 km away: 3.49 mAOD Rising ▲.
A tidal gauge: its level rises and falls with the tide twice a day, so "rising" here is usually the tide coming in.
Every gauge on the River Thames →A level is shown only when the gauge's latest reading is under 6 hours old. Distances are straight-line from the centre of Greater London's monitored area.
36 storm overflows within 5 km of the centre of Greater London's monitored area. None of the 25 with a live status is discharging right now, and 11 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: © 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.
Metropolitan area in England
Greater London is an administrative area in England, coterminous with the London region, containing most of the continuous urban area of London. It contains 33 local government districts: the 32 London boroughs, which form a ceremonial county also called Greater London, and the City of London, which is a separate ceremonial county. The Greater London Authority is responsible for strategic local government across the region, and regular local government is the responsibility of the borough councils and the City of London Corporation. Greater London is bordered by the ceremonial counties of Hertfordshire to the north, Essex to the north-east, Kent to the south-east, Surrey to the south, and Berkshire and Buckinghamshire to the west.
From Wikipedia, the free encyclopedia (CC BY-SA 4.0).
3.9mm of rain fell yesterday (27 Oct 2026), from the average of 8 rain gauges within 15km of Greater London.
October so far: 73.8mm vs 66.8mm October average — 10% wetter. Figures are the average of 8 rain gauges within 15km.
Rainfall gauge nr Greater London (west) is the nearest rain gauge, 6.9km from the centre of Greater London's monitored area. Rain gauges can be several kilometres from the town itself, so very local downpours may not register exactly.
15 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Greater London (west), against a full-month average of 16.0 rain days.
2000 was the wettest year in the record since 2000, with 823 mm from the average of 7 local rain gauges, against an average of 615 mm a year. The driest was 2003, with 451 mm.
2 Oct 2020: 47.3 mm on average across 7 local rain gauges, and up to 49.0 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 Greater London's monitored area — local rainfall can vary over short distances.
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