Tynewydd Weather Forecast

    • 16
    • 30

    Sunny day

    • 15
    • 28

    Sunny day

    • 13
    • 23

    Cloudy

    • 10
    • 18

    Cloudy

    • 12
    • 17

    Cloudy

    • 12
    • 16

    Light rain

    • 12
    • 16

    Heavy rain

Today 26 May Wales

A dry and widely sunny day today across the country, with perhaps some cloud bubbling up later in the day. Another hot day with temperatures way above average for the time of year. Maximum temperature 33 °C.

Tonight 26 May Wales

A fine and warm evening for many, although the odd thunderstorm may develop across the south. Remaining warm overnight with plenty of clear skies. Minimum temperature 13 °C.

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Tynewydd Temperature Statistics

May Temperature

St-athan (31km)

  • Lowest 15 May, 2026

    4.7 °C

  • Average May

    12.5 °C

  • Highest 24 May, 2026

    25.9 °C

Climate (2021–Present)

St-athan (31km)

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  • Average Low 2021–2026

    9 °C

  • Average 2021–2026

    11.8 °C

  • Average High 2021–2026

    14.7 °C
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