St Helens Weather Forecast

    • 4
    • 13

    Mostly clear

    • 4
    • 14

    Partly cloudy

    • 3
    • 15

    Mostly sunny

    • 3
    • 15

    Mostly sunny

    • 6
    • 16

    Partly cloudy

    • 6
    • 15

    Showers

    • 6
    • 15

    Possible shower

Today 29 Jul St Helens

Mostly clear. Winds southwesterly 15 to 25 km/h becoming light in the late evening.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Southwesterly 15 to 20 knots, reaching up to 30 knots offshore during the afternoon and evening.
Seas
1 to 1.5 metres, increasing to 2 to 2.5 metres offshore.
1st Swell
South to southwesterly 1 to 1.5 metres, increasing to 1.5 to 2.5 metres by early evening.
Weather
Partly cloudy. 60% chance of showers offshore, near zero chance elsewhere. Possible small hail offshore.
Weather Situation
A cold southwesterly airstream persists over Tasmania, tending more westerly during Thursday and Friday as a large high pressure centre establishes over the South Australian coast. The high centre will then slowly cross the southeastern mainland later Friday and during Saturday as a low centre and associated cold front approach Tasmania from the west and cross on Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

St Helens Temperature Statistics View More

July Temperature

St Helens Aerodrome (3km)

  • Lowest 24 July, 2026

    1.3 °C

  • Average July

    10.1 °C

  • Highest 19 July, 2026

    17.3 °C

Climate (2021–2026)

St Helens Aerodrome (3km)

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  • Average Low 2021–2026

    9.4 °C

  • Average 2021–2026

    13.4 °C

  • Average High 2021–2026

    18.3 °C
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