Merthyr Mawr Weather Forecast

    • 11
    • 14

    Sunny day

    • 11
    • 14

    Heavy rain

    • 10
    • 13

    Light rain shower

    • 13
    • 15

    Light rain

    • 12
    • 15

    Heavy rain shower

    • 12
    • 14

    Cloudy

Today 8 Nov Wales

A bright day with sunny spells. The odd shower around during the afternoon but most places staying dry. Feeling pleasant in the sunshine with light winds. Maximum Temperature 14C.

Tonight 8 Nov Wales

A calm evening with clear spells and fog patches possible. Cloud building overnight and the breeze picking up in strength as rain fringes into the west towards dawn. Minimum Temperature 6C.

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Merthyr Mawr Temperature Statistics

November Temperature

St-athan (14km)

  • Lowest 2 November, 2025

    8 °C

  • Average November

    12.9 °C

  • Highest 5 November, 2025

    15.9 °C

Climate (2020–Present)

St-athan (14km)

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  • Average Low 2020–2025

    8.8 °C

  • Average 2020–2025

    11.7 °C

  • Average High 2020–2025

    14.5 °C
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