Arnold Islets Weather Forecast

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Today 21 Dec Peninsula

Partly cloudy. High chance of showers, most likely from the late morning. The chance of a thunderstorm. Winds east to northeasterly 15 to 20 km/h tending north to northeasterly in the late afternoon then becoming light in the late evening. Overnight temperatures falling to the low to mid 20s with daytime temperatures reaching 32 to 38.

Peninsula Coastal Waters

Sharp Point to Cape Melville
Wind
Easterly 10 to 15 knots decreasing to about 10 knots before dawn then increasing to 10 to 15 knots in the morning. Winds reaching up to 20 knots inshore in the late afternoon.
Seas
Below 1 metre.
1st Swell
East to southeasterly below 1 metre.
Weather
Partly cloudy. 60% chance of showers. The chance of a thunderstorm in the morning and afternoon.
Graph Plots Open in Graphs

  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Arnold Islets Temperature Statistics View More

December Temperature

Horn Island (89km)

  • Lowest 9 December, 2025

    22 °C

  • Average December

    28.3 °C

  • Highest 2 December, 2025

    33.5 °C

Climate (2020–Present)

Horn Island (89km)

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  • Average Low 2020–2025

    25.1 °C

  • Average 2020–2025

    27.5 °C

  • Average High 2020–2025

    30.9 °C
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