South Cornelly Weather Forecast

    • 9
    • 10

    Heavy rain

    • 10
    • 11

    Heavy rain shower

    • 9
    • 13

    Heavy rain

    • 11
    • 12

    Heavy rain shower

    • 10
    • 14

    Heavy rain

    • 9
    • 12

    Light rain shower

Today 5 Dec Wales

Cloud spilling across the region ahead of rain moving eastwards throughout the day, heavy at times. Windy with coastal gales developing. Chilly start but turning milder later. Maximum Temperature 11C.

Tonight 5 Dec Wales

Rain clearing to leave clear spells and showers overnight. Showers may bring isolated hail and thunder. Winds easing somewhat inland but still blustery around coasts. Staying frost free. Minimum Temperature 5C.

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South Cornelly Temperature Statistics

December Temperature

St-athan (21km)

  • Lowest 3 December, 2025

    2.5 °C

  • Average December

    8.6 °C

  • Highest 1 December, 2025

    13.3 °C

Climate (2020–Present)

St-athan (21km)

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  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    11.7 °C

  • Average High 2020–2025

    14.5 °C
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