Old St Mellons Weather Forecast

    • 6
    • 17

    Cloudy

    • 7
    • 19

    Partly cloudy

    • 8
    • 18

    Sunny day

    • 9
    • 17

    Partly cloudy

    • 9
    • 16

    Partly cloudy

    • 9
    • 16

    Sunny day

    • 8
    • 16

    Sunny day

Today 22 Apr Wales

Early cloud soon lifting to leave a fine day. After a cool start, soon feeling warm with spells of strong April sunshine despite the wind. Sunshine turning hazier later. Maximum temperature 18 °C.

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Old St Mellons Temperature Statistics

April Temperature

St-athan (26km)

  • Lowest 6 April, 2026

    1.8 °C

  • Average April

    9.9 °C

  • Highest 7 April, 2026

    20.3 °C

Climate (2021–Present)

St-athan (26km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    11.8 °C

  • Average High 2021–2026

    14.6 °C
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