Portsmouth Harbour - Haslar Marina Weather Forecast

    • 11
    • 20

    Partly cloudy

    • 16
    • 18

    Cloudy

    • 14
    • 18

    Overcast

    • 9
    • 16

    Sunny day

    • 9
    • 14

    Sunny day

    • 10
    • 14

    Sunny day

    • 11
    • 14

    Partly cloudy

Today 13 Oct London and South East England

Blustery rainband, locally heavy, moves east through the morning, clearing Kent early afternoon. Sunny spells follow, but staying breezy and feeling mild. Maximum temperature 21 °C.

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Portsmouth Harbour - Haslar Marina Temperature Statistics

October Temperature

Thorney Island (14 km)

  • Lowest 8 October, 2026

    6.8 °C

  • Average October

    14.3 °C

  • Highest 4 October, 2026

    21.3 °C

Climate (2021–2026)

Thorney Island (14 km)

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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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