Flat Holm Island Weather Forecast

    • 10
    • 20

    Cloudy

    • 10
    • 20

    Sunny day

    • 6
    • 12

    Cloudy

    • 8
    • 11

    Cloudy

    • 7
    • 10

    Cloudy

    • 6
    • 11

    Sunny day

    • 6
    • 11

    Light rain shower

Today 7 Apr Wales

A sunny start to the day, although high cloud will gradually build in from the west making the sunshine hazy by lunchtime. Feeling warm, especially in the sunshine. Maximum temperature 23 °C.

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Flat Holm Island Temperature Statistics

April Temperature

St-athan (22km)

  • Lowest 6 April, 2026

    1.8 °C

  • Average April

    8.7 °C

  • Highest 4 April, 2026

    12.9 °C

Climate (2021–Present)

St-athan (22km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    11.8 °C

  • Average High 2021–2026

    14.6 °C
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