Cornwall Weather Forecast

    • 11
    • 18

    Partly cloudy

    • 7
    • 16

    Shower or two

    • 5
    • 17

    Partly cloudy

    • 7
    • 20

    Partly cloudy

    • 8
    • 22

    Mostly sunny

    • 10
    • 23

    Mostly sunny

    • 12
    • 22

    Possible shower

Today 24 Dec East Coast

Partly cloudy. Medium chance of showers, most likely in the morning and afternoon. Winds northwesterly 20 to 30 km/h turning westerly 35 to 50 km/h early in the morning then decreasing to 25 to 40 km/h in the evening. Overnight temperatures falling to between 6 and 11 with daytime temperatures reaching between 14 and 19.

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Cornwall Temperature Statistics View More

December Temperature

St Helens Aerodrome (27km)

  • Lowest 2 December, 2025

    6.6 °C

  • Average December

    16 °C

  • Highest 17 December, 2025

    29.5 °C

Climate (2020–Present)

St Helens Aerodrome (27km)

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  • Average Low 2020–2025

    9.3 °C

  • Average 2020–2025

    13.3 °C

  • Average High 2020–2025

    18.2 °C
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