Castell-y-bwch Weather Forecast

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    • 26

    Sunny day

    • 16
    • 28

    Sunny day

    • 16
    • 28

    Partly cloudy

    • 16
    • 27

    Sunny day

    • 15
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    Sunny day

    • 13
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    Sunny day

Today 13 Jul Wales

Any overnight mist and low cloud quickly clearing to leave a dry and sunny but breezy day across Wales. Feeling very warm once again as the heatwave continues. Maximum temperature 30 °C.

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Castell-y-bwch Temperature Statistics

July Temperature

St-athan (36km)

  • Lowest 3 July, 2026

    11.1 °C

  • Average July

    19.5 °C

  • Highest 10 July, 2026

    31.9 °C

Climate (2021–2026)

St-athan (36km)

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  • Average Low 2021–2026

    9 °C

  • Average 2021–2026

    11.9 °C

  • Average High 2021–2026

    14.7 °C
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