Penarth Weather Forecast

    • 14
    • 23

    Sunny day

    • 16
    • 22

    Partly cloudy

    • 16
    • 23

    Partly cloudy

    • 17
    • 24

    Sunny day

    • 16
    • 21

    Light rain shower

    • 15
    • 19

    Heavy rain shower

    • 15
    • 19

    Light rain shower

Today 22 Aug Wales

A mainly dry, albeit often cloudy day, with a few light showers possible, mainly in the north. After a fresh start, warm sunny intervals are possible, especially in the south. Maximum Temperature 21C.

Tonight 22 Aug Wales

Some evening sunshine is possible in the south, with clear spells overnight here. Staying fairly cloudy in the north. Mostly dry, though the odd light shower may develop, mainly near higher ground. Turning rather chilly in rural areas. Minimum Temperature 7C.

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Penarth Temperature Statistics

August Temperature

St-athan (18km)

  • Lowest 2 August, 2025

    10.2 °C

  • Average August

    18.5 °C

  • Highest 12 August, 2025

    31.3 °C

Climate (2020–Present)

St-athan (18km)

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  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    11.6 °C

  • Average High 2020–2025

    14.5 °C
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