Cardiff Weather Forecast

    • 7
    • 14

    Partly cloudy

    • 7
    • 12

    Light rain shower

    • 7
    • 13

    Cloudy

    • 10
    • 13

    Cloudy

    • 9
    • 14

    Cloudy

    • 11
    • 14

    Cloudy

    • 12
    • 16

    Light rain shower

Today 13 May Wales

A chilly feeling day. There will be some bright spells, but it'll often be cloudy with blustery, locally heavy showers and a risk of hail. Driest in the south and west. A brisk northerly wind adding to the colder feel. Maximum temperature 12 °C.

Tonight 13 May Wales

Showers easing but persisting overnight with the brisk northerly wind continuing. Rather chilly, but the wind and cloud preventing a frost. Minimum temperature 6 °C.

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Cardiff Temperature Statistics

May Temperature

St-athan (20km)

  • Lowest 11 May, 2026

    4.8 °C

  • Average May

    11.7 °C

  • Highest 9 May, 2026

    19.1 °C

Climate (2021–Present)

St-athan (20km)

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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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