Portland Harbour Weather Forecast

    • 7
    • 10

    Cloudy

    • 5
    • 11

    Light rain

    • 5
    • 10

    Sunny day

    • 9
    • 11

    Light rain

    • 9
    • 13

    Cloudy

    • 8
    • 14

    Cloudy

Today 26 Mar South West England

A chilly and sunny start with cloud building throughout the day but remaining largely dry until rain arrives later in the evening. Feeling less chilly thanks to lighter winds. Maximum temperature 10 °C.

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Portland Harbour Temperature Statistics

March Temperature

Isle Of Portland (6km)

  • Lowest 14 March, 2026

    5 °C

  • Average March

    9.3 °C

  • Highest 20 March, 2026

    13.2 °C

Climate (2021–2026)

Isle Of Portland (6km)

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  • Average Low 2021–2026

    10.4 °C

  • Average 2021–2026

    12.2 °C

  • Average High 2021–2026

    14.1 °C
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