Portland Harbour Weather Forecast

    • 6
    • 7

    Cloudy

    • 3
    • 8

    Light rain shower

    • 3
    • 7

    Partly cloudy

    • 3
    • 6

    Cloudy

    • 5
    • 7

    Partly cloudy

Today 4 Dec South West England

Some showers will linger through the morning in Devon and Cornwall, followed by a mostly dry afternoon, with spells of sunshine for many. Outbreaks of rain will arrive along the northern coast by the evening. Maximum Temperature 8C.

Tonight 4 Dec South West England

The rain will move south during the night, affecting all areas at times, becoming showery in the early hours. Strong winds overnight in Cornwall but lighter elsewhere. Minimum Temperature 1C.

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Portland Harbour Temperature Statistics

December Temperature

Isle Of Portland (3.7 miles)

  • Lowest 1 December, 2020

    5.8 °C

  • Average December

    8 °C

  • Highest 1 December, 2020

    10.6 °C

Climate (2011–Present)

Isle Of Portland (3.7 miles)

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  • Average Low 2011–Present

    10 °C

  • Average 2011–Present

    12 °C

  • Average High 2011–Present

    14 °C
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