St Marys Weather Forecast

    • 2
    • 18

    Sunny

    • 4
    • 20

    Partly cloudy

    • 11
    • 24

    Shower or two

    • 10
    • 15

    Showers

    • 3
    • 14

    Partly cloudy

    • 3
    • 16

    Partly cloudy

    • 7
    • 22

    Possible shower

Today 23 Sep East Coast

Sunny. Areas of morning frost about higher ground. Light winds becoming west to northwesterly 15 to 20 km/h in the middle of the day then becoming light in the evening. Daytime maximum temperatures between 15 and 19.

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  • Temperature Forecast Bureau of Meteorology

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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

    12.2 °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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