St Mellons Weather Forecast

    • 9
    • 15

    Partly cloudy

    • 8
    • 13

    Partly cloudy

    • 7
    • 12

    Light rain shower

    • 7
    • 14

    Partly cloudy

    • 9
    • 13

    Cloudy

    • 9
    • 13

    Cloudy

Today 12 May Wales

Cloudy with patchy rain arriving across Wales during the morning. Turning drier and brighter into the afternoon with sunny spells developing. Perhaps the odd isolated shower in the north later. Maximum temperature 15 °C.

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St Mellons Temperature Statistics

May Temperature

St-athan (27km)

  • Lowest 2 May, 2026

    7.3 °C

  • Average May

    12.3 °C

  • Highest 9 May, 2026

    19.1 °C

Climate (2021–Present)

St-athan (27km)

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  • Average Low 2021–2026

    9 °C

  • Average 2021–2026

    11.8 °C

  • Average High 2021–2026

    14.6 °C
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