Cornwall Weather Forecast

    • 13
    • 22

    Partly cloudy

    • 9
    • 15

    Shower or two

    • 9
    • 15

    Shower or two

    • 9
    • 16

    Shower or two

    • 10
    • 18

    Shower or two

    • 9
    • 21

    Shower or two

    • 7
    • 19

    Shower or two

Today 29 Mar East Coast

Partly cloudy. The chance of fog in the north early this morning. Medium chance of showers, most likely this afternoon. Winds west to northwesterly 15 to 20 km/h shifting southerly 25 to 40 km/h in the late morning. Daytime maximum temperatures between 19 and 23.

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Cornwall Temperature Statistics View More

March Temperature

St Helens Aerodrome (27km)

  • Lowest 17 March, 2025

    6.8 °C

  • Average March

    17.2 °C

  • Highest 10 March, 2025

    32.4 °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

    18.1 °C
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