Alnwick Island Weather Forecast

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    Shower

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Today 31 Dec Capricornia

Partly cloudy. Light winds becoming north to northeasterly 15 to 20 km/h in the late afternoon then becoming light in the evening. Daytime maximum temperatures in the low to mid 30s.

Mackay Costal Waters

Bowen to St Lawrence
Wind
East to northeasterly 10 to 15 knots.
Seas
Below 1 metre.
1st Swell
Easterly around 1 metre offshore.
Weather
Partly cloudy. The chance of a thunderstorm north of Hamilton Island later tonight.
Weather Situation
A trough lies through northern Queensland waters, with enhanced onshore wind convergence in the area of the trough. The position of the trough will fluctuate over coming days, but will most likely be located between Cooktown and Townsville.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Alnwick Island Temperature Statistics View More

December Temperature

Middle Percy Island (40km)

  • Lowest 12 December, 2025

    21.1 °C

  • Average December

    25.8 °C

  • Highest 9 December, 2025

    30.2 °C

Climate (2020–Present)

Middle Percy Island (40km)

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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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