Southdown Weather Forecast

    • 11
    • 18

    Partly cloudy

    • 16
    • 18

    Cloudy

    • 13
    • 19

    Light rain

    • 13
    • 19

    Partly cloudy

    • 14
    • 20

    Cloudy

    • 13
    • 21

    Cloudy

    • 11
    • 19

    Cloudy

Today 17 Sep South West England

Early cloud and rain clear to the southeast with a mostly dry day with plenty of sunny spells then following. The odd shower possible towards northern coasts. Maximum temperature 19 °C.

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Southdown Temperature Statistics

September Temperature

Lyneham (31km)

  • Lowest 10 September, 2026

    9.3 °C

  • Average September

    16.4 °C

  • Highest 6 September, 2026

    25.7 °C

Climate (2021–2026)

Lyneham (31km)

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  • Average Low 2021–2026

    7.7 °C

  • Average 2021–2026

    11.2 °C

  • Average High 2021–2026

    14.8 °C
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