Pen-y-Fai Weather Forecast

    • 9
    • 13

    Light rain

    • 11
    • 13

    Heavy rain

    • 12
    • 14

    Heavy rain shower

    • 12
    • 15

    Light rain

    • 13
    • 19

    Cloudy

    • 13
    • 18

    Cloudy

    • 12
    • 17

    Partly cloudy

Today 17 May Wales

Bright or sunny spells and isolated showers until mid to late afternoon, then the showers become more widespread, frequent and often heavy, with a chance of thunder. Maximum temperature 15 °C.

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Pen-y-Fai Temperature Statistics

May Temperature

St-athan (17km)

  • Lowest 15 May, 2026

    4.7 °C

  • Average May

    11.3 °C

  • Highest 9 May, 2026

    19.1 °C

Climate (2021–Present)

St-athan (17km)

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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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