Sea Mills Weather Forecast

    • 13
    • 16

    Heavy rain shower

    • 14
    • 17

    Cloudy

    • 16
    • 19

    Light rain

    • 15
    • 20

    Overcast

    • 14
    • 19

    Cloudy

    • 11
    • 18

    Cloudy

Today 15 Sep South West England

A very windy day with strong westerly winds and gales at times. Occasional brief heavy showers but also plenty of dry weather with sunny periods. Feeling cool in the wind. Maximum Temperature 17C.

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Sea Mills Temperature Statistics

September Temperature

Lyneham (45km)

  • Lowest 14 September, 2025

    8.3 °C

  • Average September

    14.2 °C

  • Highest 6 September, 2025

    21.6 °C

Climate (2020–Present)

Lyneham (45km)

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  • Average Low 2020–2025

    7.4 °C

  • Average 2020–2025

    10.8 °C

  • Average High 2020–2025

    14.4 °C
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