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Llan Y Mawddwy Raingauge

Gwynedd
0.2 mm/hr
Current rainfall rate
Light
Updated 16:00 · 20 min ago
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Hourly totals require a complete set of 15-minute observations ending at the latest reading shown above. Unavailable means observations are missing or the gauge is more than 75 minutes behind, not that no rain fell. Longer recorded amounts and charts may cover only part of the selected period.

0.2mm
Last Hour
14.6mm
Last 6 Hours
17.4mm
Last 24 Hours
17.4mm
Recorded in 7 Days (partial)
17.4mm
September Recorded (partial)
17.4mm
2026 Recorded (partial)

Rainfall Chart — available observations

Monthly Rainfall Overview

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Rainfall Records

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24h Weather Forecast

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Precipitation -12h / +12h

Nearby River Gauges

Rivers most likely affected by rainfall at this gauge

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Nearby Rain Gauges

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🚽 Storm overflows within 3 km

Sewer overflows near this rain gauge, from the water companies’ live event-duration monitors and their official annual spill figures. Spill starts also appear as markers on the rainfall chart above.

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Location

Source: Natural Resources Wales

Station Ref: NRW_H064001817

Lat: 52.7399

Lng: -3.6452

County: Gwynedd

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Data from: -

🏠 Buying or renting around here? Get the Property Flood-Risk Report for any English postcode — official risk band, recorded floods, warning history, river behaviour and nearby storm overflows. £19 one-off. Learn more →