Porth Diana Weather Forecast

    • 14
    • 16

    Sunny day

    • 15
    • 18

    Light rain

    • 15
    • 18

    Cloudy

    • 14
    • 18

    Light rain shower

    • 14
    • 16

    Sunny day

    • 14
    • 16

    Cloudy

Today 11 Sep Wales

Isolated showers first thing Friday morning, but dissipating under a ridge of high pressure. This leaves brighter spells in the afternoon, especially in the west. Temperatures will be near average. Maximum temperature 20 °C.

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Porth Diana Temperature Statistics

September Temperature

Valley (6km)

  • Lowest 8 September, 2026

    13.3 °C

  • Average September

    16.2 °C

  • Highest 6 September, 2026

    21.7 °C

Climate (2021–2026)

Valley (6km)

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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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