Merthyr Tydfil Weather Forecast

    • 16
    • 31

    Sunny day

    • 16
    • 27

    Partly cloudy

    • 12
    • 19

    Light rain shower

    • 12
    • 16

    Light rain shower

    • 13
    • 20

    Cloudy

    • 14
    • 21

    Cloudy

Today 12 Jul Wales

Dry, sunny, and hot, especially in the east. Lengthy spells of sunshine throughout the day with a few fair weather clouds bubbling up, these bringing the low chance of a shower. Cooler at the coasts. Maximum Temperature 33C.

Tonight 12 Jul Wales

Largely dry this evening with plenty of late sunshine. Clear skies and light winds overnight may allow some patchy mist and fog to form by dawn. Feeling warm and muggy. Minimum Temperature 16C.

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Merthyr Tydfil Temperature Statistics

July Temperature

Sennybridge (38km)

  • Lowest 3 July, 2025

    6.7 °C

  • Average July

    14.9 °C

  • Highest 10 July, 2025

    25.2 °C

Climate (2020–Present)

Sennybridge (38km)

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  • Average Low 2020–2025

    5.5 °C

  • Average 2020–2025

    9.1 °C

  • Average High 2020–2025

    12.6 °C
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