Cilfynydd Weather Forecast

    • 3
    • 12

    Light rain shower

    • 4
    • 13

    Partly cloudy

    • 9
    • 13

    Cloudy

    • 8
    • 13

    Light rain

    • 11
    • 13

    Light rain

    • 12
    • 15

    Light rain shower

    • 12
    • 15

    Cloudy

Today 14 May Wales

Winds will not be as strong as on Wednesday, but scattered, blustery showers continue with some with hail and thunder possible. Feeling cool in the brisk winds with temperatures remaining below average for mid-May. Maximum temperature 12 °C.

Tonight 14 May Wales

The wind and showers will ease overnight, becoming mostly dry by morning. Some clear spells developing under lighter winds, allowing for a chilly end to the night. Minimum temperature 5 °C.

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Cilfynydd Temperature Statistics

May Temperature

St-athan (25km)

  • Lowest 11 May, 2026

    4.8 °C

  • Average May

    11.9 °C

  • Highest 9 May, 2026

    19.1 °C

Climate (2021–Present)

St-athan (25km)

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  • Average Low 2021–2026

    9 °C

  • Average 2021–2026

    11.8 °C

  • Average High 2021–2026

    14.6 °C
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