St Helens Weather Forecast

    • 13
    • 24

    Partly cloudy

    • 13
    • 18

    Shower or two

    • 14
    • 26

    Morning shower or two

    • 12
    • 21

    Showers increasing

    • 13
    • 23

    Shower or two

    • 11
    • 20

    Shower or two

    • 10
    • 21

    Partly cloudy

Today 18 Dec St Helens

Partly cloudy. Slight chance of a light shower in the afternoon and early evening. Light winds becoming southerly 15 to 25 km/h in the late evening.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Variable about 10 knots.
Seas
Below 1 metre.
1st Swell
Northeasterly below 1 metre.
Weather
Partly cloudy.
Weather Situation
A trough approaches from the southwest today and is forecast to cross the state during this afternoon. A weak ridge is then expected to pass to the south on Friday, before a low pressure system moves over the state on Saturday, lingering about the east coast on Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

St Helens Temperature Statistics View More

December Temperature

St Helens Aerodrome (3km)

  • Lowest 2 December, 2025

    6.6 °C

  • Average December

    15.7 °C

  • Highest 4 December, 2025

    27.3 °C

Climate (2020–Present)

St Helens Aerodrome (3km)

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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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