Menai Strait - Castell-gwylan Weather Forecast

    • 12
    • 18

    Cloudy

    • 12
    • 16

    Cloudy

    • 13
    • 16

    Partly cloudy

    • 14
    • 17

    Light rain

    • 12
    • 16

    Partly cloudy

    • 14
    • 18

    Light rain

    • 15
    • 17

    Cloudy

Today 7 Sep Wales

Any lingering rain quickly clearing, with bright or sunny spells developing throughout the morning. Turning cloudier in the afternoon with rain arriving. Feeling fresher with temperatures nearer to average. Maximum temperature 21 °C.

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Menai Strait - Castell-gwylan Temperature Statistics

September Temperature

Capel Curig Saws (21km)

  • Lowest 1 September, 2026

    8.5 °C

  • Average September

    14.6 °C

  • Highest 1 September, 2026

    17.7 °C

Climate (2021–2026)

Capel Curig Saws (21km)

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  • Average Low 2021–2026

    7 °C

  • Average 2021–2026

    10 °C

  • Average High 2021–2026

    12.9 °C
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