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How much rain fell in Cardiff, South Wales? Daily, weekly and monthly totals averaged over the Natural Resources Wales rain gauges within 15km, updated every 15 minutes.
Next 24 hours: about 0.6mm of rain forecast for the area around Cardiff, heaviest in the hour to 18:00 (0.3mm).
A computer model forecast (DWD ICON) for a square about 15 km across, updated 11:05 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 Cardiff
Met Office forecast for the next 24 hours: more than 95% chance of more than 1 mm, 80% chance of more than 4 mm and 10% chance of more than 12 mm.
Next 48 hours: more than 95% chance of more than 1 mm.
Updated 16:40 on Tue 10 Nov. For the Met Office forecast point under 1 km from Cardiff. Powered by Met Office data.
| Gauge | Distance | Yesterday | 7 days | November | Today |
|---|---|---|---|---|---|
| St Fagans Raingauge | 6.0km | 0.0mm | 0.6mm | 4.4mm | 3.8mm |
| Rhiwbina Reservoir Raingauge | 6.9km | 0.0mm | 0.2mm | 4.4mm | 4.0mm |
| Cogmoors Raingauge | 7.2km | 0.0mm | 0.4mm | 6.2mm | 5.8mm |
Daily totals 11 Oct–9 Nov. Wettest day: 53.9mm.
3 days with at least 0.2mm of rain so far this November at St Fagans Raingauge, against a full-month average of 24.5 rain days (based on 2 months of records at this gauge).
The rain gauges near Cardiff do not have a long enough daily record yet, so this is the Met Office series for the wider region.
Yearly rainfall 1986–2025, with the dashed line at the 1991–2020 average. Wettest: 2000 (1,886 mm). Driest: 2010 (1,129 mm). Source: Met Office HadUK-Grid areal series, Open Government Licence v3.0.
Cardiff gets about 1,182 mm of rain a year on average (wettest month December, 137 mm; driest April, 72 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), 1.4 km from the centre of Cardiff. 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
A level is shown only when the gauge's latest reading is under 6 hours old. Distances are straight-line from the centre of Cardiff.
28 storm overflows within 5 km of the centre of Cardiff. None of the 27 with a live status is discharging right now, and 1 has 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: © Dŵr Cymru Welsh Water, from its Storm Overflow Map.
Capital and largest city of Wales
Cardiff is the capital and largest city of Wales. Cardiff had a population of 381,516 in 2025 and forms a principal area officially known as the City and County of Cardiff. The city is the eleventh largest in the United Kingdom. Located in the southeast of Wales, the city sits within the Cardiff Capital Region, which consists of 1.5 million people, accounting for roughly half the nation's total population. Cardiff is the county town of the historic county of Glamorgan and from 1974 to 1996 of South Glamorgan. It belongs to the Eurocities network of the largest European cities. A small town until the early 19th century, its prominence as a port for coal when mining began in the region helped its expansion. In 1905, it was ranked as a city and in 1955 proclaimed capital of Wales. The Cardiff urban area covers a larger area outside the county boundary, including the towns of Dinas Powys and Penarth.
From Wikipedia, the free encyclopedia (CC BY-SA 4.0).
0.0mm of rain fell yesterday (9 Nov 2026), from the average of 5 rain gauges within 15km of Cardiff.
November so far: 4.7mm vs 151.6mm November average — 97% drier (the average covers the whole month; we are 10 days in). Figures are the average of 5 rain gauges within 15km.
St Fagans Raingauge is the nearest rain gauge, 6.0km from the centre of Cardiff. Rain gauges can be several kilometres from the town itself, so very local downpours may not register exactly.
3 days with at least 0.2mm of rain so far this November at St Fagans Raingauge, against a full-month average of 24.5 rain days.
Rainfall data: Natural Resources Wales 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 Cardiff — local rainfall can vary over short distances. The centre of Cardiff is the Ordnance Survey Open Names point for the city or town. Contains OS data © Crown copyright and database right 2026 (OGL v3.0).
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