Porthkerry Weather Forecast

    • 14
    • 20

    Partly cloudy

    • 15
    • 18

    Partly cloudy

    • 14
    • 19

    Light rain shower

    • 13
    • 18

    Cloudy

    • 14
    • 18

    Partly cloudy

    • 14
    • 18

    Sunny day

Today 30 Sep Wales

Showers quickly becoming confined to the far west on Wednesday leaving a largely dry and bright day. A little cooler but still warm in the sunshine with winds also easing. Maximum temperature 22 °C.

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Porthkerry Temperature Statistics

September Temperature

St-athan (8km)

  • Lowest 26 September, 2026

    8.9 °C

  • Average September

    16.4 °C

  • Highest 6 September, 2026

    25.1 °C

Climate (2021–2026)

St-athan (8km)

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  • Average Low 2021–2026

    9.1 °C

  • Average 2021–2026

    12 °C

  • Average High 2021–2026

    14.8 °C
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