South Island Weather Forecast

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

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    Partly cloudy

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    Sunny

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    Partly cloudy

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    Shower

Today 16 Sep Capricornia

Partly cloudy. The chance of fog early this morning. Slight chance of a shower near the coast, near zero chance elsewhere. Winds east to northeasterly 15 to 20 km/h becoming light in the late evening. Daytime maximum temperatures around 30.

Mackay Costal Waters

Bowen to St Lawrence
Wind
East to southeasterly 10 to 15 knots, reaching up to 20 knots north of Hamilton Island during the day.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore north of Hamilton Island.
1st Swell
Easterly below 1 metre.
Weather
Partly cloudy.
Weather Situation
A ridge extends over the northern Queensland waters from a high [1027 hPa] in the Tasman Sea. The ridge will remain in place over coming days as the high slowly drifts east.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

South Island Temperature Statistics View More

September Temperature

Middle Percy Island (12km)

  • Lowest 1 September, 2025

    15.2 °C

  • Average September

    20 °C

  • Highest 9 September, 2025

    24.4 °C

Climate (2020–Present)

Middle Percy Island (12km)

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  • Average Low 2020–2025

    20.7 °C

  • Average 2020–2025

    22.6 °C

  • Average High 2020–2025

    25.4 °C
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