Old Man Rocks Weather Forecast

    • 8
    • 16

    Cloudy

    • 8
    • 21

    Partly cloudy

    • 6
    • 21

    Sunny

    • 9
    • 19

    Partly cloudy

    • 10
    • 20

    Partly cloudy

    • 8
    • 17

    Partly cloudy

    • 7
    • 17

    Mostly sunny

Today 12 Apr St Helens

Cloudy. Winds west to southwesterly 20 to 30 km/h decreasing to 15 to 20 km/h in the late afternoon.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
West to southwesterly 15 to 20 knots, reaching up to 30 knots offshore during the day.
Seas
1 to 2 metres, increasing to 2 to 3 metres offshore.
1st Swell
Northwest to southwesterly below 1 metre inshore, increasing to 1.5 to 2.5 metres offshore.
Weather
Partly cloudy.
Weather Situation
A high pressure system build over the Bight during Sunday, maintaining a cold southwesterly stream over Tasmania during the day. The high is expected to move to the north of Tasmania later Monday, extending and ridge over the state as it passes. A cold front approaches from the west on Tuesday and is expected to cross later in the day, with another front approaching from the west later Wednesday. These systems will maintain cooler weather over the state early next week.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Old Man Rocks Temperature Statistics View More

April Temperature

St Helens Aerodrome (12km)

  • Lowest 4 April, 2026

    6.5 °C

  • Average April

    14.4 °C

  • Highest 1 April, 2026

    26 °C

Climate (2021–Present)

St Helens Aerodrome (12km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    13.3 °C

  • Average High 2021–2026

    18.2 °C
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