Bontddu Weather Forecast

    • 6
    • 10

    Cloudy

    • 8
    • 10

    Light rain

    • 7
    • 11

    Light rain shower

    • 10
    • 11

    Heavy rain shower

    • 11
    • 13

    Heavy rain shower

    • 11
    • 14

    Light rain shower

    • 11
    • 16

    Partly cloudy

Today 15 May Wales

After a chilly start, Friday will be mostly dry with some bright or sunny spells. A few, mostly light, showers are possible through the morning. With winds steadily easing it will feel a little less chilly too. Maximum temperature 12 °C.

Tonight 15 May Wales

The odd light coastal shower is possible overnight. Otherwise, dry with clear spells and light winds. This will allow temperatures to fall away and a patchy frost to form. Minimum temperature 4 °C.

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Bontddu Temperature Statistics

May Temperature

Lake Vyrnwy Saws (34km)

  • Lowest 12 May, 2026

    1.7 °C

  • Average May

    8.1 °C

  • Highest 2 May, 2026

    14.3 °C

Climate (2021–Present)

Lake Vyrnwy Saws (34km)

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  • Average Low 2021–2026

    6.3 °C

  • Average 2021–2026

    9 °C

  • Average High 2021–2026

    11.8 °C
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