Southsea Weather Forecast

    • 14
    • 20

    Cloudy

    • 17
    • 19

    Cloudy

    • 13
    • 21

    Cloudy

    • 18
    • 19

    Partly cloudy

    • 16
    • 21

    Cloudy

    • 17
    • 20

    Cloudy

    • 14
    • 21

    Partly cloudy

Today 9 Sep London and South East England

Sunny spells and dry to start. Cloud increasing through the day, with a chance of the odd isolated light shower in the afternoon, though most will remain dry. Breezy to start, especially near coasts, then winds falling light. Maximum temperature 19 °C.

Tonight 9 Sep London and South East England

Dry with some clear spells through the evening and overnight. Light winds throughout. Feeling rather chilly, especially in rural spots. Minimum temperature 7 °C.

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Southsea Temperature Statistics

September Temperature

Thorney Island (12km)

  • Lowest 1 September, 2026

    10.8 °C

  • Average September

    18.3 °C

  • Highest 3 September, 2026

    23.5 °C

Climate (2021–2026)

Thorney Island (12km)

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  • Average Low 2021–2026

    9 °C

  • Average 2021–2026

    12.4 °C

  • Average High 2021–2026

    15.6 °C
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