Dorchester Weather Forecast

    • 0
    • 6

    Cloudy

    • -2
    • 4

    Cloudy

    • 2
    • 6

    Cloudy

    • -2
    • 5

    Partly cloudy

    • -3
    • 4

    Sunny day

    • -3
    • 4

    Sunny day

Today 30 Dec South West England

A largely dry day with plenty of sunny spells compared to Monday, though showers persisting across the Isles of Scilly. Feeling chilly with a brisk breeze along the coasts. Maximum Temperature 7C.

Tonight 30 Dec South West England

Dry for most with plenty of clear spells this evening and overnight. Turning colder with a widespread frost and some freezing fog patches. A few showers in the far west. Minimum Temperature -2C.

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Dorchester Temperature Statistics

December Temperature

Isle Of Portland (21km)

  • Lowest 26 December, 2025

    1.7 °C

  • Average December

    9.6 °C

  • Highest 9 December, 2025

    14.1 °C

Climate (2020–Present)

Isle Of Portland (21km)

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  • Average Low 2020–2025

    10.3 °C

  • Average 2020–2025

    12.1 °C

  • Average High 2020–2025

    14.1 °C
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