Grants Point Weather Forecast

    • 12
    • 21

    Rain

    • 12
    • 22

    Possible early shower

    • 12
    • 21

    Possible shower

    • 11
    • 21

    Mostly sunny

    • 9
    • 19

    Partly cloudy

    • 8
    • 20

    Partly cloudy

    • 9
    • 20

    Partly cloudy

Today 21 Dec St Helens

Cloudy. Very high chance of rain, most likely in the late afternoon and evening. Light winds.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Variable about 10 knots becoming northeast to southeasterly 10 to 15 knots in the early afternoon then tending southwesterly in the late evening. Winds reaching up to 30 knots offshore in the late evening.
Seas
Below 1 metre, increasing to 1 to 1.5 metres offshore by early evening.
1st Swell
Southerly below 1 metre.
Weather
Cloudy. 90% chance of rain. The chance of a thunderstorm in the late afternoon and evening.
Weather Situation
A broad low pressure system south of Tasmania will clear to the southeast this morning before a second, more intense, low pressure system is forecast to move across Bass Strait this evening and clear to the east tomorrow morning. A ridge of high pressure is expected to extend across the southern mainland, forecast to direct a westerly flow over Tasmania from tomorrow. Cold fronts embedded in the flow are expected to cross Tasmania late tomorrow and again Wednesday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grants Point Temperature Statistics View More

December Temperature

St Helens Aerodrome (10km)

  • Lowest 2 December, 2025

    6.6 °C
  • Average December

    16 °C
  • Highest 17 December, 2025

    29.5 °C

Climate (2020–Present)

St Helens Aerodrome (10km)

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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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