Treorchy Weather Forecast

    • 4
    • 12

    Partly cloudy

    • 7
    • 12

    Cloudy

    • 6
    • 12

    Light rain

    • 10
    • 12

    Heavy rain

    • 11
    • 14

    Heavy rain

    • 10
    • 15

    Light rain

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.

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Treorchy Temperature Statistics

May Temperature

St-athan (28km)

  • Lowest 11 May, 2026

    4.8 °C

  • Average May

    11.9 °C

  • Highest 9 May, 2026

    19.1 °C

Climate (2021–Present)

St-athan (28km)

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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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