Oldcastle Weather Forecast

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    • 21

    Sunny day

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    Sunny day

    • 14
    • 21

    Sunny day

    • 15
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    Sunny day

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    Sunny day

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    Sunny day

Today 7 Jul Wales

Monday will start fairly cloudy with some showers feeding southeastwards across the country. Most places will settle into a dry day though with increasingly sunny weather. Pleasantly warm, although breezy. Maximum Temperature 21C.

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Oldcastle Temperature Statistics

July Temperature

St-athan (14km)

  • Lowest 3 July, 2025

    10.6 °C

  • Average July

    17.1 °C

  • Highest 1 July, 2025

    21 °C

Climate (2020–Present)

St-athan (14km)

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  • Average Low 2020–2025

    8.7 °C

  • Average 2020–2025

    11.6 °C

  • Average High 2020–2025

    14.4 °C
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