St Marys Weather Forecast

    • 2
    • 17

    Sunny

    • 5
    • 18

    Mostly sunny

    • 11
    • 23

    Sunny

    • 9
    • 23

    Becoming windy. Partly cloudy

    • 7
    • 15

    Partly cloudy

    • 4
    • 15

    Partly cloudy

    • 5
    • 18

    Cloudy

Today 17 Sep East Coast

Partly cloudy. Areas of morning frost about higher ground. Winds westerly 20 to 30 km/h. Overnight temperatures falling to between 1 and 7 with daytime temperatures reaching between 14 and 18.

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St Marys Temperature Statistics View More

September Temperature

St Helens Aerodrome (28km)

  • Lowest 8 September, 2026

    3.5 °C

  • Average September

    12 °C

  • Highest 10 September, 2026

    22.2 °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

    18.3 °C
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