Saint Helens Marina Weather Forecast

    • 7
    • 13

    Showers developing. Windy

    • 5
    • 14

    Sunny

    • 3
    • 15

    Mostly sunny

    • 8
    • 17

    Showers increasing

    • 7
    • 14

    Shower or two

    • 3
    • 14

    Mostly sunny

    • 3
    • 15

    Shower or two

Today 19 Jul St Helens

Partly cloudy. High chance of showers, most likely during this afternoon and evening. Damaging winds possible, easing in the evening. Winds northwesterly 35 to 50 km/h.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Northwesterly 20 to 30 knots, reaching up to 35 knots in the late afternoon. Winds turning westerly 25 to 30 knots in the late evening.
Seas
2 to 3 metres, increasing to 2 to 4 metres near Eddystone Point.
1st Swell
Southerly 1 to 1.5 metres offshore.
Weather
Mostly sunny morning. 60% chance of showers in the late afternoon and evening.
Weather Situation
A northwesterly airstream persists over Tasmania ahead of a strong cold front, expected to cross the state from the west on Saturday. A high pressure system over mainland Australia extends a weak ridge over the Tasmania on Sunday, before moving into the Tasman Sea during Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Saint Helens Marina Temperature Statistics View More

July Temperature

St Helens Aerodrome (2km)

  • Lowest 12 July, 2025

    0 °C

  • Average July

    8.9 °C

  • Highest 7 July, 2025

    16.6 °C

Climate (2020–Present)

St Helens Aerodrome (2km)

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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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