Merthyr Tydfil Weather Forecast

    • 17
    • 24

    Cloudy

    • 15
    • 21

    Thunder

    • 15
    • 19

    Light rain shower

    • 14
    • 18

    Heavy rain shower

    • 12
    • 18

    Heavy rain shower

    • 12
    • 17

    Light rain shower

    • 12
    • 18

    Light rain shower

Today 26 Aug Wales

Showers drift northwards through the morning, turning drier for a time in the afternoon. Some more isolated, heavy or thundery, showers may return midafternoon. Warmer than Tuesday. Maximum temperature 27 °C.

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Merthyr Tydfil Temperature Statistics

August Temperature

Sennybridge (38km)

  • Lowest 22 August, 2026

    1.9 °C

  • Average August

    15.6 °C

  • Highest 13 August, 2026

    31.8 °C

Climate (2021–2026)

Sennybridge (38km)

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  • Average Low 2021–2026

    5.7 °C

  • Average 2021–2026

    9.5 °C

  • Average High 2021–2026

    13 °C
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