Mountain Ash Weather Forecast

    • 4
    • 11

    Cloudy

    • 7
    • 11

    Cloudy

    • 7
    • 11

    Partly cloudy

    • 4
    • 12

    Heavy rain

    • 3
    • 8

    Light rain shower

    • 4
    • 9

    Partly cloudy

    • 4
    • 10

    Cloudy

Today 9 Mar Wales

A cloudy and grey start with some showery outbreaks of rain. Skies will brighten during the afternoon with some hazy sunshine developing, mainly across eastern areas. Near normal temperatures. Maximum temperature 12 °C.

Tonight 9 Mar Wales

Remaining cloudy overnight, but with a few breaks in the cloud here and there. Further showery outbreaks or rain are possible at times. Minimum temperature 3 °C.

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Mountain Ash Temperature Statistics

March Temperature

St-athan (31km)

  • Lowest 5 March, 2026

    5.4 °C

  • Average March

    9 °C

  • Highest 2 March, 2026

    13.8 °C

Climate (2021–Present)

St-athan (31km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    11.7 °C

  • Average High 2021–2026

    14.6 °C
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