Garneddwen Weather Forecast

    • 14
    • 20

    Cloudy

    • 14
    • 19

    Cloudy

    • 7
    • 16

    Light rain shower

    • 13
    • 17

    Cloudy

    • 10
    • 16

    Light rain

    • 11
    • 16

    Sunny day

    • 12
    • 16

    Partly cloudy

Today 21 Sep Wales

Eastern areas of Wales will be sunniest on Monday with western areas often much cloudier. Here the cloud could give the odd drizzly outbreak, mainly in the northwest. Light winds however and feeling warm in the east. Maximum temperature 21 °C.

Tonight 21 Sep Wales

Remaining cloud in the northwest but clearer in the south. Mist developing under clear skies in the south. A chilly night with grass frost possible. Minimum temperature 7 °C.

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Garneddwen Temperature Statistics

September Temperature

Lake Vyrnwy Saws (26km)

  • Lowest 12 September, 2026

    8.3 °C

  • Average September

    13.6 °C

  • Highest 6 September, 2026

    21.7 °C

Climate (2021–2026)

Lake Vyrnwy Saws (26km)

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  • Average Low 2021–2026

    6.4 °C

  • Average 2021–2026

    9.1 °C

  • Average High 2021–2026

    12 °C
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