Southbourne Weather Forecast

    • 12
    • 21

    Cloudy

    • 16
    • 21

    Cloudy

    • 15
    • 22

    Cloudy

    • 15
    • 21

    Cloudy

    • 17
    • 21

    Sunny day

    • 17
    • 22

    Sunny day

    • 16
    • 21

    Partly cloudy

Today 21 Aug London and South East England

Largely dry with variable cloud and bright or sunny spells throughout the day. The best of the sunshine is likely to be near the coast, though isolated showers remain possible near Kent coasts. Light winds. Temperatures near normal. Maximum Temperature 22C.

Tonight 21 Aug London and South East England

Partly cloudy with some late evening sunny spells. Variable cloud overnight with plenty of clear spells. Remaining dry with light winds. Minimum Temperature 9C.

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Southbourne Temperature Statistics

August Temperature

Thorney Island (3km)

  • Lowest 6 August, 2025

    9.9 °C

  • Average August

    18.6 °C

  • Highest 12 August, 2025

    28.1 °C

Climate (2020–Present)

Thorney Island (3km)

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  • Average Low 2020–2025

    8.6 °C

  • Average 2020–2025

    11.9 °C

  • Average High 2020–2025

    15.1 °C
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