Merthyr Tydfil Weather Forecast

    • 13
    • 24

    Partly cloudy

    • 12
    • 23

    Partly cloudy

    • 12
    • 23

    Sunny day

    • 13
    • 23

    Partly cloudy

    • 11
    • 21

    Partly cloudy

    • 12
    • 22

    Sunny day

Today 18 Jul Wales

A fine start to the weekend with prolonged periods of sunshine. Cloud building a little more in the afternoon with an isolated shower possible, but many staying dry. Less hot. Maximum temperature 26 °C.

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Merthyr Tydfil Temperature Statistics

July Temperature

Sennybridge (38km)

  • Lowest 3 July, 2026

    6.3 °C

  • Average July

    17.8 °C

  • Highest 10 July, 2026

    30.7 °C

Climate (2021–2026)

Sennybridge (38km)

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  • Average Low 2021–2026

    5.7 °C

  • Average 2021–2026

    9.4 °C

  • Average High 2021–2026

    12.9 °C
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