Granite Rock Point Weather Forecast

    • 5
    • 17

    Mostly sunny

    • 5
    • 17

    Sunny

    • 7
    • 18

    Showers

    • 13
    • 18

    Showers

    • 11
    • 17

    Shower or two

    • 9
    • 16

    Showers

    • 8
    • 13

    Possible shower

Today 21 May St Helens

Mostly sunny. Light winds.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Variable about 10 knots.
Seas
Around 1 metre.
1st Swell
Northeasterly below 1 metre inshore, increasing to 1 to 1.5 metres offshore during the afternoon.
Weather
Partly cloudy.
Weather Situation
A high pressure system over the Tasman Sea, directs a light north to northwesterly flow over the state ahead of a slowly approaching trough. The trough will brush the southwest of the state late today, with a high pressure ridge from the east forecast to build over Tasmania on Thursday. The high is expected to maintain a ridge over Tasmania during Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Granite Rock Point Temperature Statistics View More

May Temperature

St Helens Aerodrome (8km)

  • Lowest 19 May, 2025

    0.2 °C

  • Average May

    12.1 °C

  • Highest 5 May, 2025

    22 °C

Climate (2020–Present)

St Helens Aerodrome (8km)

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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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