Granite Rock Point Weather Forecast

    • 15
    • 27

    Possible afternoon storm

    • 13
    • 20

    Becoming windy. Partly cloudy

    • 8
    • 20

    Partly cloudy

    • 8
    • 21

    Sunny

    • 10
    • 24

    Mostly sunny

    • 12
    • 26

    Sunny

    • 13
    • 19

    Shower or two

Today 13 Dec St Helens

Partly cloudy. Slight chance of a shower. The chance of a thunderstorm in the afternoon. Winds northerly 15 to 20 km/h tending northeasterly in the late afternoon then turning north to northwesterly 15 to 25 km/h in the evening.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Northerly 15 to 20 knots turning northwesterly in the early afternoon.
Seas
1 to 1.5 metres.
1st Swell
Northeasterly 1.5 to 2 metres, decreasing to 1.5 metres during the afternoon.
Weather
Partly cloudy. The chance of a thunderstorm.
Weather Situation
A weak cold front is crosses Tasmania today, ahead of a second stronger cold front to cross early tomorrow. The next high pressure system in the Bight is then forecast to move eastwards over Tasmania by late Monday and into the Tasman Sea on Tuesday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Granite Rock Point Temperature Statistics View More

December Temperature

St Helens Aerodrome (8km)

  • Lowest 2 December, 2025

    6.6 °C

  • Average December

    15.3 °C

  • Highest 4 December, 2025

    27.3 °C

Climate (2020–Present)

St Helens Aerodrome (8km)

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  • Average Low 2020–2025

    9.3 °C

  • Average 2020–2025

    13.3 °C

  • Average High 2020–2025

    18.2 °C
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