Alnwick Island Weather Forecast

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Today 23 Apr Capricornia

Mostly sunny. Slight chance of a shower near the coast, near zero chance elsewhere. Winds southeasterly 15 to 25 km/h. Daytime maximum temperatures in the mid to high 20s.

Mackay Costal Waters

Bowen to St Lawrence
Wind
Southeasterly 15 to 20 knots, reaching up to 25 knots offshore in the late evening.
Seas
1 to 1.5 metres, increasing to 1.5 to 2 metres offshore north of Hamilton Island.
1st Swell
Easterly around 1 metre offshore.
Weather
Partly cloudy. 70% chance of showers.
Weather Situation
A firm ridge extends over the north Queensland waters and will persist for several days.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Alnwick Island Temperature Statistics View More

April Temperature

Middle Percy Island (40km)

  • Lowest 16 April, 2026

    20.6 °C

  • Average April

    23.8 °C

  • Highest 12 April, 2026

    27.6 °C

Climate (2021–Present)

Middle Percy Island (40km)

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  • Average Low 2021–2026

    20.7 °C

  • Average 2021–2026

    22.6 °C

  • Average High 2021–2026

    25.5 °C
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