St Martin's Weather Forecast

    • 17
    • 19

    Cloudy

    • 17
    • 18

    Thunder

    • 17
    • 18

    Cloudy

    • 18
    • 19

    Cloudy

    • 18
    • 19

    Cloudy

    • 18
    • 19

    Cloudy

    • 18
    • 19

    Overcast

Today 29 Aug South West England

An unsettled start with heavy, persistent rain pushing westwards. Rain turning thundery into the afternoon with strong and squally winds likely, with the risk of coastal gales in the south. Maximum temperature 21 °C.

Tonight 29 Aug South West England

Further showers are likely across the east of the region during the evening, however it will turn somewhat drier from the west with clear spells developing. Minimum temperature 14 °C.

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St Martin's Temperature Statistics

August Temperature

Scilly St Marys (5km)

  • Lowest 21 August, 2026

    13.3 °C

  • Average August

    18.6 °C

  • Highest 13 August, 2026

    24.5 °C

Climate (2021–2026)

Scilly St Marys (5km)

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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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