St Marys Weather Forecast

    • 5
    • 14

    Showers increasing

    • 8
    • 13

    Rain

    • 6
    • 13

    Shower or two

    • 5
    • 13

    Shower or two

    • 3
    • 15

    Partly cloudy

    • 4
    • 15

    Partly cloudy

    • 3
    • 13

    Partly cloudy

Today 9 Aug East Coast

Partly cloudy. Medium chance of showers, most likely in the evening. Light winds becoming north to northeasterly 20 to 30 km/h in the morning then becoming light in the late evening. Overnight temperatures falling to between 2 and 6 with daytime temperatures reaching between 12 and 16.

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St Marys Temperature Statistics View More

August Temperature

St Helens Aerodrome (28km)

  • Lowest 1 August, 2026

    3 °C

  • Average August

    8.6 °C

  • Highest 6 August, 2026

    16.3 °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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