St Marys Weather Forecast

    • 9
    • 14

    Shower or two clearing

    • 2
    • 15

    Sunny

    • 2
    • 16

    Sunny

    • 3
    • 19

    Partly cloudy

    • 10
    • 22

    Possible shower

    • 10
    • 21

    Showers

    • 11
    • 18

    Shower or two

Today 26 Sep East Coast

Cloudy. Medium chance of showers, most likely during the morning and afternoon. Snow possible above 900 metres. Possible small hail in the south. Winds west to southwesterly 15 to 20 km/h tending south to southwesterly 20 to 30 km/h during the morning. Daytime maximum temperatures between 9 and 14.

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St Marys Temperature Statistics View More

September Temperature

St Helens Aerodrome (28km)

  • Lowest 22 September, 2026

    1.7 °C

  • Average September

    12.4 °C

  • Highest 20 September, 2026

    23.6 °C

Climate (2021–2026)

St Helens Aerodrome (28km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    13.4 °C

  • Average High 2021–2026

    18.4 °C
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