Stack Island Weather Forecast

    • 15
    • 20

    Shower or two

    • 15
    • 21

    Shower or two

    • 15
    • 21

    Partly cloudy

    • 14
    • 23

    Partly cloudy

    • 13
    • 23

    Mostly sunny

    • 15
    • 24

    Mostly sunny

    • 15
    • 23

    Possible shower

Today 21 Apr Illawarra

Cloudy. The chance of fog about higher ground in the early morning. Medium chance of showers, most likely in the late morning and afternoon. Winds south to southwesterly 15 to 25 km/h tending south to southeasterly in the middle of the day then becoming light in the evening. Overnight temperatures falling to between 6 and 14 with daytime temperatures reaching between 16 and 21.

Illawarra Coastal Waters

Port Hacking to Ulladulla
Wind
Southerly 15 to 20 knots.
Seas
1 to 1.5 metres.
1st Swell
Southerly 2.5 metres, tending southeasterly 2 to 2.5 metres during the morning.
Weather
Partly cloudy. 60% chance of showers.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Stack Island Temperature Statistics View More

April Temperature

Kiama (Bombo Headland) (3km)

  • Lowest 18 April, 2026

    10.4 °C

  • Average April

    19.1 °C

  • Highest 10 April, 2026

    30 °C

Climate (2021–Present)

Kiama (Bombo Headland) (3km)

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  • Average Low 2021–2026

    14.8 °C

  • Average 2021–2026

    17.8 °C

  • Average High 2021–2026

    21.4 °C
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