The Barway Weather Forecast

    • 8
    • 16

    Shower or two

    • 5
    • 15

    Cloudy

    • 3
    • 19

    Sunny

    • 6
    • 19

    Mostly sunny

    • 13
    • 23

    Mostly sunny

    • 13
    • 23

    Shower or two

    • 10
    • 18

    Possible shower

Today 15 Sep St Helens

Partly cloudy. High chance of showers, most likely in the late morning and afternoon. The chance of a thunderstorm in the late morning and afternoon. Winds northwesterly 15 to 20 km/h tending westerly in the early morning then tending southwesterly 15 to 25 km/h in the middle of the day.

East of Flinders Island Coastal Waters

North Flinders Island to St Helens Point
Wind
Westerly 20 to 30 knots turning southwesterly in the late afternoon.
Seas
1 to 2 metres, increasing to 2 to 3 metres offshore.
1st Swell
Southerly below 1 metre inshore, increasing to 1 to 1.5 metres offshore during the afternoon.
Weather
Partly cloudy. 80% chance of showers. The chance of a thunderstorm from late this morning. Possible small hail offshore.
Weather Situation
A southwesterly flow is expected to develop over Tasmania during today in the wake of a cold front, as a high in the Bight is forecast to extend a ridge over the state on Wednesday. Flow is expected to turn westerly Thursday as the high moves over Victoria. Strong northwesterly winds are expected on Friday ahead of an approaching trough.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

The Barway Temperature Statistics View More

September Temperature

St Helens Aerodrome (8km)

  • Lowest 8 September, 2026

    3.5 °C

  • Average September

    12.3 °C

  • Highest 10 September, 2026

    22.2 °C

Climate (2021–2026)

St Helens Aerodrome (8km)

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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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