Onion Creek Entrance Weather Forecast

    • 8
    • 24

    Sunny

    • 11
    • 27

    Mostly sunny

    • 14
    • 25

    Partly cloudy

    • 13
    • 17

    Shower or two

    • 13
    • 21

    Showers

    • 12
    • 22

    Showers increasing

    • 12
    • 22

    Shower or two

Today 16 Dec St Helens

Sunny. Light winds becoming northwest to northeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening.

Upper East Coastal Waters

St Helens Point to Wineglass Bay
Wind
Westerly 10 to 15 knots shifting north to northeasterly in the late morning. Winds reaching up to 20 knots offshore during the morning and again in the late evening.
Seas
1 to 1.5 metres, decreasing to 1 metre during the morning.
1st Swell
Southerly 1 to 1.5 metres inshore, increasing to 2 to 3 metres offshore.
Weather
Mostly sunny.
Weather Situation
A high pressure system to the northwest will cross through Bass Strait on Tuesday and will continue to extend a ridge over the state as the high settles in the Tasman Sea on Wednesday. A trough will cross over the state on Thursday with broad area of low pressure developing off the west coast on Friday.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Onion Creek Entrance Temperature Statistics View More

December Temperature

St Helens Aerodrome (3km)

  • Lowest 2 December, 2025

    6.6 °C

  • Average December

    15.4 °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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