Onllwyn Weather Forecast

    • 12
    • 16

    Cloudy

    • 15
    • 19

    Cloudy

    • 12
    • 18

    Heavy rain

    • 11
    • 16

    Heavy rain shower

    • 12
    • 15

    Heavy rain shower

    • 11
    • 16

    Heavy 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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Onllwyn Temperature Statistics

September Temperature

Sennybridge (31km)

  • Lowest 2 September, 2025

    10 °C

  • Average September

    13 °C

  • Highest 2 September, 2025

    16.9 °C

Climate (2020–Present)

Sennybridge (31km)

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  • Average Low 2020–2025

    5.5 °C

  • Average 2020–2025

    9.2 °C

  • Average High 2020–2025

    12.6 °C
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