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How much rain fell in Sarn, Powys? Daily, weekly and monthly totals averaged over the Environment Agency and Natural Resources Wales rain gauges within 15km, updated every 15 minutes.
Next 24 hours: little or no rain forecast for the area around Sarn (under 0.2mm).
A computer model forecast (DWD ICON) for a square about 15 km across, updated 05:05 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 Sarn | 0.0km | 6.2mm | 39.2mm | 78.0mm | 0.0mm |
| Sarn Raingauge | 0.0km | 6.2mm | 39.2mm | 78.2mm | 0.2mm |
| Rainfall gauge nr Bishop's Castle nr Bishop's Castle | 13.4km | 2.6mm | 48.8mm | 87.2mm | 0.0mm |
Daily totals 28 Sep–27 Oct. Wettest day: 13.5mm.
20 days with at least 0.2mm of rain so far this October at Rainfall gauge nr Sarn.
2026 so far: 555 mm (1 Jan to 26 Oct), against 607 mm by the same date in an average year (2000–2025) — 9% drier.
One bar per calendar year, the average of 4 local rain gauges: the Environment Agency's quality-checked daily archive, then live telemetry for the latest months. Wettest: 2000 (1,023 mm). Driest: 2011 (523 mm). Average: 788 mm a year.
Daily totals are the average of 4 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.
Sarn gets about 909 mm of rain a year on average (wettest month December, 115 mm; driest March, 61 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), 2.6 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
A level is shown only when the gauge's latest reading is under 6 hours old. Distances are straight-line from the centre of Sarn's monitored area.
Human settlement in Wales
Sarn is a small village in Powys, Wales.
From Wikipedia, the free encyclopedia (CC BY-SA 4.0).
4.2mm of rain fell yesterday (27 Oct 2026), from the average of 4 rain gauges within 15km of Sarn.
October so far: 87.4mm vs 92.8mm October average — 6% drier. Figures are the average of 4 rain gauges within 15km.
Rainfall gauge nr Sarn is the nearest rain gauge, 0.0km from the centre of Sarn's monitored area. Rain gauges can be several kilometres from the town itself, so very local downpours may not register exactly.
2000 was the wettest year in the record since 2000, with 1,023 mm from the average of 4 local rain gauges, against an average of 788 mm a year. The driest was 2011, with 523 mm.
20 Jul 2007: 54.9 mm on average across 4 local rain gauges, and up to 57.6 mm at one of them, during 2007 UK floods. Records since 1 Jan 2000.
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 Sarn's monitored area — local rainfall can vary over short distances.
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