Grassy Island Weather Forecast

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    Rain

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    Rain

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    Shower

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    Shower

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    Shower

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    Shower

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    Shower

Today 2 Jan Central Coast and Whitsundays

Cloudy. High chance of rain. The chance of a thunderstorm in the north in the afternoon and evening. Thunderstorms possibly severe with heavy rain which may lead to flash flooding near the coast in the afternoon and evening. Winds easterly 20 to 30 km/h. Daytime maximum temperatures in the mid to high 20s.

Mackay Costal Waters

Bowen to St Lawrence
Wind
Easterly 15 to 20 knots, reaching up to 25 knots north of Hamilton Island during the afternoon and evening.
Seas
Around 1 metre, increasing to 1 to 1.5 metres offshore south of Mackay.
1st Swell
Easterly below 1 metre.
Weather
Cloudy. 70% chance of rain. The chance of a thunderstorm north of Hamilton Island.
Weather Situation
Onshore winds will continue converging over the coast between Cairns and Mackay for several days.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Grassy Island Temperature Statistics View More

January Temperature

Proserpine Airport (39km)

  • Lowest 1 January, 2026

    21.8 °C

  • Average January

    25.1 °C

  • Highest

    –

Climate (2021–Present)

Proserpine Airport (39km)

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  • Average Low 2021–2026

    18.1 °C

  • Average 2021–2026

    22.9 °C

  • Average High 2021–2026

    29.2 °C
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