Porth y Wylfa Weather Forecast

    • 12
    • 15

    Light rain

    • 14
    • 17

    Sunny day

    • 11
    • 17

    Light rain shower

    • 12
    • 16

    Partly cloudy

    • 16
    • 21

    Cloudy

    • 13
    • 18

    Light rain shower

Today 25 Sep Wales

The odd bright interval in the east initially, but Friday generally looks rather cloudy with mist and fog patches gradually lifting. Occasional light rain also affecting northern and western areas. Maximum temperature 21 °C.

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Porth y Wylfa Temperature Statistics

September Temperature

Valley (18km)

  • Lowest 20 September, 2026

    13.2 °C

  • Average September

    16.2 °C

  • Highest 6 September, 2026

    21.7 °C

Climate (2021–2026)

Valley (18km)

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  • Average Low 2021–2026

    9.1 °C

  • Average 2021–2026

    11.6 °C

  • Average High 2021–2026

    14 °C
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