Grannys Gut Weather Forecast

    • 10
    • 15

    Mostly clear

    • 4
    • 15

    Sunny

    • 3
    • 17

    Sunny

    • 4
    • 21

    Partly cloudy

    • 12
    • 23

    Shower or two

    • 12
    • 21

    Showers

    • 11
    • 19

    Shower or two

Today 26 Sep St Helens

Mostly clear. Slight chance of a shower early this evening. Winds southerly 20 to 25 km/h tending southwesterly 15 to 20 km/h in the late evening.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Southerly 15 to 25 knots, reaching up to 30 knots offshore in the late afternoon.
Seas
1.5 to 2.5 metres.
1st Swell
Southerly around 1 metre inshore, increasing to 1 to 2 metres offshore.
Weather
Cloudy. 80% chance of showers.
Weather Situation
A high pressure system centred well to the west of Tasmania extends a ridge over the state. The high centre is forecast to move across the state during Sunday and Monday before moving over the Tasman Sea during Tuesday. Northerly flow is expected to build during Tuesday over Tasmania ahead of an approaching trough, forecast to cross during early Wednesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grannys Gut Temperature Statistics View More

September Temperature

St Helens Aerodrome (1km)

  • Lowest 22 September, 2026

    1.7 °C

  • Average September

    12.4 °C

  • Highest 20 September, 2026

    23.6 °C

Climate (2021–2026)

St Helens Aerodrome (1km)

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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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