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Rainfall in Llanllwyd

How much rain fell in Llanllwyd, Powys? Daily, weekly and monthly totals averaged over the Environment Agency and Natural Resources Wales 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 Llanllwyd's monitored area, all reporting in the last two days. This October they range from 65.0mm to 105.4mm. The nearest is Sarn Raingauge, 9.2km away. Rain can be very local, so one street may differ from the average.
10.2mm
Yesterday (23 Oct 2026)
40.9mm
Last 7 days
82.1mm
October so far
vs 100.1mm avg — 18% drier
14.7mm
Today so far (UTC)

Rain forecast

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

Next 24 hours: about 2.1mm of rain forecast for the area around Llanllwyd, heaviest in the hour to 19:00 (1.9mm).

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 Llanllwyd? Get the Property Flood-Risk Report for any Llanllwyd postcode — official risk band, recorded floods since 1946, warning history, river behaviour and nearby storm overflows. £19 one-off, instant. Learn more →
⚠️ Yesterday's 5.8mm at Sarn Raingauge was the wettest day at this gauge since 22 Oct 2026 and in the top 12.9% of 31 rain days in this gauge's very short record (short record — treat with caution).
⚠️ Yesterday's 6.2mm at Rainfall gauge nr Sarn was the wettest day at this gauge since 22 Oct 2026 and in the top 13.6% of 22 rain days in this gauge's 13-month record.
⚠️ Yesterday's 18.0mm at Llanbadarn Fynydd Raingauge was the wettest day in this gauge's very short record and in the top 0.1% of 38 rain days ranked here (short record — treat with caution).

Nearest rain gauges to Llanllwyd

GaugeDistanceYesterday7 daysOctoberToday
Sarn Raingauge 9.2km 5.8mm 31.4mm 65.4mm 10.2mm
Rainfall gauge nr Sarn nr Sarn 9.2km 6.2mm 31.4mm 65.0mm 9.8mm
Llanbadarn Fynydd Raingauge 11.1km 18.0mm 47.4mm 105.4mm 21.8mm

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

Daily totals 24 Sep–23 Oct. Wettest day: 11.6mm.

Rain days this October

18 days with at least 0.2mm of rain so far this October at Sarn Raingauge.

Rainfall year by year: south-west England and south Wales

The rain gauges near Llanllwyd 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 (1,619 mm). Driest: 2003 (959 mm). Source: Met Office HadUK-Grid areal series, Open Government Licence v3.0.

Average rainfall in Llanllwyd

Llanllwyd gets about 1,021 mm of rain a year on average (wettest month December, 116 mm; driest May, 69 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), 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.

Gauges and storm overflows around Llanllwyd

Rain gauge River gauge

Rivers near Llanllwyd

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 Llanllwyd's monitored area.

Frequently asked questions

How much rain fell in Llanllwyd yesterday?

10.2mm of rain fell yesterday (23 Oct 2026), from the average of 6 rain gauges within 15km of Llanllwyd.

Is this month wetter than normal in Llanllwyd?

October so far: 82.1mm vs 100.1mm October average — 18% 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 Llanllwyd?

Sarn Raingauge is the nearest rain gauge, 9.2km from the centre of Llanllwyd's monitored area. Rain gauges can be several kilometres from the town itself, so very local downpours may not register exactly.

Rainfall data: Environment Agency and 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 Llanllwyd's monitored area — local rainfall can vary over short distances.