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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australian Insight Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for the most accurate day-by-day outlook, but expect Cairns’ typical December pattern: warm, humid days around 31–33°C with a high chance of afternoon storms or showers. Pack light clothing and an umbrella, and plan outdoor activities for the morning when conditions are generally clearer.
What’s the typical December weather pattern in Cairns?
December is the start of Cairns’ wet season, so you’ll see a mix of hot, sticky mornings and sudden tropical downpours. Humidity sits above 70% most days, and the Bureau of Meteorology often records rainfall on 10–15 days this month. Sea breezes help, but the heat can feel intense by midday, making early starts the smart move for any hiking or reef trips.
Should I change my plans if rain is forecast?
Not necessarily. Storms in Cairns tend to be brief and localised, often clearing within an hour. The live forecast above will show you the likely timing, but even on “rainy” days you’ll get long sunny spells. If you’re chasing the driest window, the weather cairns forecast 14 days and weather cairns forecast 21 days models from the BOM can help you spot a longer dry stretch.
Is the weather in cairns 10 days reliable for planning a holiday?
Yes, but treat it as a trend rather than a minute-by-minute guarantee. Tropical systems can shift quickly; the bom cairns 14 day forecast will give you a better sense of any evolving troughs or cyclone risks.
What should I pack for a 10-day trip to Cairns in December?
Light, breathable clothing, a rain jacket or compact umbrella, reef-safe sunscreen, insect repellent, and a hat. Comfortable sandals that can handle wet pavement are more practical than sneakers.
Are there any cyclone warnings I should be aware of?
Cyclone season runs from November to April. Check our Severe Weather Warning page and the BOM’s latest advice. The live forecast above will flag any immediate tropical lows in the Coral Sea.
Sources
- Bureau of Meteorology – Cairns Forecast
- Weatherzone – Cairns 10-Day Outlook
- Elders Weather – Cairns Weather
For broader Australian conditions, see our Australia weather hub or check specifics for Brisbane Weather and Sydney Weather.