Alltwern Weather Forecast

    • -2
    • 6

    Sunny day

    • 1
    • 6

    Partly cloudy

    • 4
    • 8

    Sunny day

    • 1
    • 6

    Cloudy

    • 1
    • 5

    Partly cloudy

    • 2
    • 5

    Overcast

Today 25 Dec Wales

Christmas Day will start quite cloudy again, but plenty of sunshine will develop during the day. It will remain blustery, with gales possible over hills. Feeling rather chilly. Maximum Temperature 5C.

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Alltwern Temperature Statistics

December Temperature

Pembrey Sands Samos (26km)

  • Lowest 4 December, 2025

    1.4 °C

  • Average December

    10 °C

  • Highest 9 December, 2025

    14.1 °C

Climate (2020–Present)

Pembrey Sands Samos (26km)

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  • Average Low 2020–2025

    8.2 °C

  • Average 2020–2025

    11.6 °C

  • Average High 2020–2025

    14.3 °C
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