Grannys Gut Weather Forecast

    • 12
    • 20

    Shower or two

    • 11
    • 16

    Showers easing

    • 8
    • 15

    Partly cloudy

    • 5
    • 16

    Partly cloudy

    • 9
    • 16

    Showers

    • 5
    • 14

    Shower or two

    • 6
    • 16

    Shower or two

Today 15 Sep St Helens

Partly cloudy. Medium chance of showers, most likely later tonight. Winds northerly 20 to 25 km/h tending northwesterly 25 to 30 km/h in the late evening.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Northerly 20 to 25 knots, reaching up to 30 knots in the late evening.
Seas
1.5 to 2 metres.
1st Swell
Southeast to southwesterly below 1 metre.
Weather
Partly cloudy.
Weather Situation
A series of cold fronts will cross Tasmania overnight and on Tuesday, as a low slowly makes it's way south of the state. The low will quickly move away to the southeast on Wednesday morning, with a high pressure system over mainland Australia to direct a westerly airstream over Tasmania during Wednesday. A northwesterly airstream is expected to develop on Thursday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grannys Gut Temperature Statistics View More

September Temperature

St Helens Aerodrome (1km)

  • Lowest 5 September, 2025

    1 °C

  • Average September

    10.6 °C

  • Highest 12 September, 2025

    18.8 °C

Climate (2020–Present)

St Helens Aerodrome (1km)

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  • Average Low 2020–2025

    9.4 °C

  • Average 2020–2025

    13.3 °C

  • Average High 2020–2025

    18.2 °C
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