Llanfyllin Weather Forecast

    • 9
    • 18

    Partly cloudy

    • 14
    • 21

    Cloudy

    • 11
    • 20

    Light rain shower

    • 10
    • 17

    Light rain shower

    • 12
    • 17

    Cloudy

    • 11
    • 18

    Light rain shower

    • 10
    • 16

    Light rain shower

Today 5 Sep Wales

More settled on Friday and Saturday with a few light showers, but mainly dry with bright or sunny spells. Unsettled again on Sunday with outbreaks of rain and strong winds.

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Llanfyllin Temperature Statistics

September Temperature

Lake Vyrnwy Saws (12km)

  • Lowest 2 September, 2025

    8.7 °C

  • Average September

    12.2 °C

  • Highest 3 September, 2025

    15.7 °C

Climate (2020–Present)

Lake Vyrnwy Saws (12km)

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  • Average Low 2020–2025

    6.1 °C

  • Average 2020–2025

    8.9 °C

  • Average High 2020–2025

    11.7 °C
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