Southbourne Weather Forecast

    • 18
    • 27

    Partly cloudy

    • 21
    • 30

    Sunny day

    • 20
    • 28

    Sunny day

    • 22
    • 31

    Sunny day

    • 19
    • 30

    Sunny day

    • 17
    • 23

    Sunny day

    • 16
    • 22

    Partly cloudy

Today 21 Jun London and South East England

Fine throughout, with lengthy periods of sunshine, although this may turn rather rather hazy at times under high cloud. Becoming widely hot, although a little less so in eastern coastal districts. Winds staying light. Maximum temperature 31 °C.

Tonight 21 Jun London and South East England

Evening sunny periods will lead into a dry night, staying very warm for many, especially in larger cities. Feeling humid. Minimum temperature 17 °C.

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Southbourne Temperature Statistics

June Temperature

Thorney Island (3km)

  • Lowest 11 June, 2026

    9 °C

  • Average June

    15.6 °C

  • Highest 19 June, 2026

    23.4 °C

Climate (2021–2026)

Thorney Island (3km)

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  • Average Low 2021–2026

    8.9 °C

  • Average 2021–2026

    12.2 °C

  • Average High 2021–2026

    15.3 °C
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