Portsmouth Weather Forecast

    • 5
    • 6

    Overcast

    • 5
    • 8

    Partly cloudy

    • 10
    • 11

    Overcast

    • 9
    • 12

    Overcast

    • 9
    • 10

    Overcast

    • 9
    • 13

    Light rain

Today 13 Dec London and South East England

Another dull day with widespread low cloud and patchy drizzle at times. Any brighter spells during the afternoon will be short-lived. Winds remaining light throughout. Maximum Temperature 7C.

Tonight 13 Dec London and South East England

Remaining cloudy overnight with outbreaks of light rain or drizzle at times and perhaps some patchy fog developing, mostly likely over higher ground. Winds remaining light. Minimum Temperature 4C.

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Portsmouth Temperature Statistics

December Temperature

Thorney Island (11km)

  • Lowest 4 December, 2024

    0.1 °C

  • Average December

    8.2 °C

  • Highest 1 December, 2024

    13.7 °C

Climate (2019–Present)

Thorney Island (11km)

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  • Average Low 2019–2024

    8.5 °C

  • Average 2019–2024

    11.8 °C

  • Average High 2019–2024

    15 °C
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