Onion Creek Entrance Weather Forecast

    • 8
    • 17

    Mostly sunny

    • 7
    • 14

    Partly cloudy

    • 4
    • 15

    Partly cloudy

    • 5
    • 15

    Possible shower

    • 5
    • 16

    Shower or two

    • 9
    • 16

    Shower or two

    • 9
    • 17

    Shower or two

Today 14 Aug St Helens

Mostly sunny day. Slight chance of a light shower late this afternoon and evening. Light winds becoming southerly 15 to 20 km/h in the late evening.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
West to northwesterly 15 to 20 knots shifting southerly in the late afternoon.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore.
1st Swell
Southerly 1 to 1.5 metres inshore, increasing to 1.5 to 2 metres offshore.
Weather
Becoming cloudy. 50% chance of showers.
Weather Situation
A high pressure system over the mainland is forecast to direct a westerly flow over Tasmania overnight and during Friday, with a weak cold front expected to brush the south of the state during Friday morning. The high will moves over Tasmania on Saturday and Sunday, then is expected to move to the east of the state during Monday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Onion Creek Entrance Temperature Statistics View More

August Temperature

St Helens Aerodrome (3km)

  • Lowest 1 August, 2026

    3 °C

  • Average August

    9.8 °C

  • Highest 6 August, 2026

    16.3 °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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