Flat Holm Island Weather Forecast

    • 11
    • 18

    Cloudy

    • 10
    • 19

    Cloudy

    • 7
    • 15

    Cloudy

    • 8
    • 14

    Partly cloudy

    • 9
    • 15

    Partly cloudy

    • 8
    • 13

    Partly cloudy

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Flat Holm Island Temperature Statistics

May Temperature

St-athan (22km)

  • Lowest 2 May, 2026

    7.3 °C

  • Average May

    11.8 °C

  • Highest 4 May, 2026

    16.9 °C

Climate (2021–Present)

St-athan (22km)

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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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