Sun Island Weather Forecast

    • 21
    • 24

    Clear

    • 22
    • 24

    Partly cloudy

    • 18
    • 24

    Sunny

    • 16
    • 23

    Sunny

    • 17
    • 23

    Sunny

    • 18
    • 23

    Sunny

    • 19
    • 23

    Partly cloudy

Today 18 May Capricornia

Partly cloudy. Slight chance of a shower in the southwest, near zero chance elsewhere. Light winds.

Capricornia Coastal Waters

St Lawrence to Burnett Heads
Wind
Northeast to southeasterly about 10 knots, reaching up to 20 knots offshore south of Cape Capricorn in the late afternoon.
Seas
Below 0.5 metres, increasing to around 1 metre south of Cape Capricorn.
1st Swell
Easterly around 1 metre inshore, increasing to 1.5 to 2.5 metres offshore.
Weather
Partly cloudy. 50% chance of showers offshore south of Cape Capricorn, near zero chance elsewhere.
Weather Situation
A trough lies along the along the far southeastern Queensland coast. A more substantial trough and westerly change will push through the southern and central Queensland waters on Tuesday. The trough will deepen into a low on Wednesday as it shifts into the Tasman Sea. A firm ridge will develop in the wake of the trough during Wednesday as a high [1027 hPa] moves east across southern Australia.
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  • Temperature Forecast Bureau of Meteorology

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Sun Island Temperature Statistics View More

May Temperature

Williamson Airfield (18km)

  • Lowest 9 May, 2026

    10.2 °C
  • Average May

    21.1 °C
  • Highest 4 May, 2026

    29.5 °C

Climate (2021–Present)

Williamson Airfield (18km)

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  • Average Low 2021–2026

    17.5 °C
  • Average 2021–2026

    22.7 °C
  • Average High 2021–2026

    28.7 °C
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