Croesyceiliog Weather Forecast

    • 8
    • 14

    Cloudy

    • 9
    • 15

    Cloudy

    • 9
    • 16

    Cloudy

    • 9
    • 18

    Cloudy

    • 6
    • 15

    Cloudy

    • 5
    • 13

    Cloudy

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    • 13

    Cloudy

Today 6 May Wales

A cloudy start for most with the odd shower. Brightening up for some by the afternoon but heavy slow-moving showers may develop across Pembrokeshire and Carmarthenshire. Feeling somewhat cooler in the light breeze. Maximum temperature 15 °C.

Tonight 6 May Wales

Showers continuing overnight, heaviest in the southwest. Some clear spells in places but temperatures staying above freezing for most areas, but a patchy frost developing in rural spots. Minimum temperature 2 °C.

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Croesyceiliog Temperature Statistics

May Temperature

St-athan (41km)

  • Lowest 2 May, 2026

    7.3 °C

  • Average May

    12.1 °C

  • Highest 4 May, 2026

    16.9 °C

Climate (2021–Present)

St-athan (41km)

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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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