Cwmfelin Weather Forecast

    • 11
    • 19

    Partly cloudy

    • 11
    • 21

    Cloudy

    • 11
    • 22

    Sunny day

    • 13
    • 25

    Sunny day

    • 13
    • 26

    Sunny day

    • 12
    • 25

    Sunny day

    • 12
    • 24

    Sunny day

Today 21 May Wales

It will be a grey and often wet start to the day across Wales, particularly across the northwest. However, rain will gradually ease, with most areas seeing a dry afternoon with some warm bright or sunny spells developing. Maximum temperature 21 °C.

Tonight 21 May Wales

A clear and dry night to start. Low cloud moving into the west during the early hours which could bring a spot of rain. Staying very mild. Minimum temperature 12 °C.

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Cwmfelin Temperature Statistics

May Temperature

St-athan (33km)

  • Lowest 15 May, 2026

    4.7 °C

  • Average May

    11.5 °C

  • Highest 9 May, 2026

    19.1 °C

Climate (2021–Present)

St-athan (33km)

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  • Average Low 2021–2026

    9 °C

  • Average 2021–2026

    11.8 °C

  • Average High 2021–2026

    14.6 °C
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