St Mellons Weather Forecast

    • 6
    • 14

    Cloudy

    • 9
    • 14

    Cloudy

    • 9
    • 13

    Cloudy

    • 12
    • 14

    Light rain

    • 12
    • 16

    Light rain shower

    • 12
    • 16

    Cloudy

Today 15 May Wales

The odd early shower is possible, otherwise a dry day with light winds. Cloudy at times, but with some bright or sunny spells. Feeling less chilly in the lighter winds. Maximum temperature 13 °C.

Graph Plots Open in Graphs

  • Temperature Forecast Met Office

  • Temperature Real-Time

St Mellons Temperature Statistics

May Temperature

St-athan (27km)

  • Lowest 11 May, 2026

    4.8 °C

  • Average May

    11.9 °C

  • Highest 9 May, 2026

    19.1 °C

Climate (2021–Present)

St-athan (27km)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    9 °C

  • Average 2021–2026

    11.8 °C

  • Average High 2021–2026

    14.6 °C
Get WillyWeather+ to remove ads