St Mary's Weather Forecast

    • 17
    • 18

    Overcast

    • 16
    • 18

    Cloudy

    • 15
    • 17

    Partly cloudy

    • 16
    • 18

    Cloudy

    • 16
    • 18

    Cloudy

    • 16
    • 17

    Cloudy

Today 21 Sep South West England

Any mist patches will quickly clear on Monday morning to leave a fine day with plenty of warm sunny spells and light winds. Maximum temperature 23 °C.

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St Mary's Temperature Statistics

September Temperature

Scilly St Marys (1km)

  • Lowest 5 September, 2026

    14.3 °C

  • Average September

    17.4 °C

  • Highest 6 September, 2026

    22 °C

Climate (2021–2026)

Scilly St Marys (1km)

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  • Average Low 2021–2026

    11.3 °C

  • Average 2021–2026

    12.9 °C

  • Average High 2021–2026

    14.6 °C
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