Porton Down Weather Forecast

    • 17
    • 23

    Cloudy

    • 11
    • 21

    Partly cloudy

    • 11
    • 19

    Sunny day

    • 11
    • 19

    Partly cloudy

    • 10
    • 20

    Mist

    • 10
    • 20

    Sunny day

Today 29 Sep South West England

A blustery day ahead with strongest gusts around coasts. Cloudy initially with an odd spot of rain, although brighter spells possible through the afternoon. Heavy persistent rain arriving towards dusk. Maximum temperature 23 °C.

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Porton Down Temperature Statistics

September Temperature

Boscombe Down (4km)

  • Lowest 10 September, 2026

    7.5 °C

  • Average September

    16.1 °C

  • Highest 6 September, 2026

    25.7 °C

Climate (2021–2026)

Boscombe Down (4km)

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  • Average Low 2021–2026

    7.4 °C

  • Average 2021–2026

    11.4 °C

  • Average High 2021–2026

    15.4 °C
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