St Marys Weather Forecast

    • 2
    • 15

    Mostly sunny

    • 3
    • 18

    Sunny

    • 6
    • 19

    Partly cloudy

    • 11
    • 25

    Shower or two

    • 11
    • 17

    Shower or two

    • 5
    • 13

    Partly cloudy

    • 6
    • 18

    Possible shower

Today 22 Sep East Coast

Mostly sunny. Areas of frost about higher ground in the early morning. Winds westerly 20 to 30 km/h shifting east to northeasterly 15 to 20 km/h in the late morning and early afternoon then becoming light in the evening. Overnight temperatures falling to between 1 and 7 with daytime temperatures reaching between 13 and 17.

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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

St Marys Temperature Statistics View More

September Temperature

St Helens Aerodrome (28km)

  • Lowest 17 September, 2026

    2.2 °C

  • Average September

    12.5 °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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