Bontddu Weather Forecast

    • 13
    • 16

    Cloudy

    • 9
    • 17

    Light rain

    • 11
    • 15

    Sunny day

    • 16
    • 20

    Cloudy

    • 13
    • 18

    Light rain shower

    • 12
    • 15

    Heavy rain shower

    • 11
    • 15

    Cloudy

Today 26 Sep Wales

Any mist soon clearing leaving a dry day for most with pleasantly warm sunny spells. A few showers are possible, mainly in the northwest where it will be rather breezy. Maximum temperature 20 °C.

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Bontddu Temperature Statistics

September Temperature

Lake Vyrnwy Saws (34km)

  • Lowest 24 September, 2026

    7.1 °C

  • Average September

    13.5 °C

  • Highest 6 September, 2026

    21.7 °C

Climate (2021–2026)

Lake Vyrnwy Saws (34km)

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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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