Weather in Cairns for December 2025
Until now, December 2025 in Cairns has been nearly identical to the historical average, with a temperature of 29.3 °C (showing only a slight deviation of -0.3 °C).
The forecast for the upcoming days in Cairns predicts a temperature of 30.5 °C, which is slightly above the historical average.
In general, the average temperature in Cairns at the beginning of December is 29.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 30.4 °C by the end of December.
Cairns experiences heavy rainfall in December, with over 20 rainy days and an average total precipitation 542.9 mm.
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Cairns Weather December
Temperatures trend during December in Cairns
December weather in Cairns day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Dec. |  Patchy rain possible | 31° /23° | 4.6 mm | 9 | |
| 2 Dec. | Patchy rain possible | 31° /23° | 1.8 mm | 9 | |
| 3 Dec. | Light rain shower | 30° /23° | 4.4 mm | 9 | |
| 4 Dec. | Patchy rain possible | 27° /23° | 16.3 mm | 8 | |
| 5 Dec. | Patchy rain possible | 28° /23° | 4.6 mm | 8 | |
| 6 Dec. | Patchy rain possible | 30° /23° | 0.7 mm | 8 | |
| 7 Dec. | Patchy rain possible | 29° /21° | 0.9 mm | 8 | |
| 8 Dec. | Patchy rain possible | 30° /23° | 0.2 mm | 8 | |
| 9 Dec. |  Sunny | 30° /23° | 0.2 mm | 9 | |
| 10 Dec. |  Partly cloudy | 30° /22° | 0.3 mm | 9 | |
| 11 Dec. |  Overcast | 30° /22° | 0.1 mm | 9 | |
| 12 Dec. | Light rain shower | 30° /23° | 9 mm | 9 | |
| 13 Dec. | Light rain shower | 29° /23° | 96.1 mm | 9 | |
| 14 Dec. |  Moderate or heavy rain shower | 29° /24° | 38.8 mm | 9 | |
| 15 Dec. | Moderate or heavy rain shower | 28° /24° | 61.4 mm | 8 | |
| 16 Dec. | Patchy rain possible | 31° /24° | 1.4 mm | 3.6 | |
| 17 Dec. |  Moderate rain | 29° /24° | 11.5 mm | 3.3 | |
| 18 Dec. | Patchy rain possible | 30° /24° | 4.6 mm | 3.5 | |
| 19 Dec. | Patchy rain possible | 30° /24° | 4.4 mm | 3.3 | |
| 20 Dec. | Patchy rain possible | 30° /24° | 0.3 mm | 9 | |
| 21 Dec. | Patchy rain possible | 31° /24° | 0.3 mm | 9 | |
| 22 Dec. | Patchy rain possible | 30° /23° | 0.1 mm | 9 | |
| 23 Dec. | Patchy rain possible | 31° /24° | 0.9 mm | 9 | |
| 24 Dec. | Patchy rain possible | 31° /24° | 0.4 mm | 9 | |
| 25 Dec. | Patchy rain possible | 30° /23° | 0.3 mm | 9 | |
| 26 Dec. | Patchy rain possible | 31° /24° | 0.4 mm | 9 | |
| 27 Dec. | Patchy rain possible | 30° /24° | 0.4 mm | 9 | |
| 28 Dec. | Patchy rain possible | 32° /22° | 0.1 mm | 9 | |
| 29 Dec. | Patchy rain possible | 30° /23° | 1.1 mm | 8 | |
| 30 Dec. | Moderate or heavy rain shower | 30° /24° | 6.8 mm | 8 | |
| 31 Dec. | Patchy rain possible | 30° /24° | 5.2 mm | 8 | |
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Cairns in December - FAQ
Cairns water temperatures in December
The average water temperature of the Pacific Ocean near Cairns in December is 28.3 °C. Temperatures remain fairly consistent throughout the month.
- What is the water temperature in Cairns in December?
- The average water temperature in Cairns in December is 28.3 °C.
- Can you swim in Cairns in December?
- The sea feels almost bath-like – perfect for floating, paddle-boarding or spending hours snorkeling without a wetsuit.
December rainfall patterns in Cairns
UV exposure in Cairns during December
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Where is Cairns?Get accurate weather forecasts for Cairns, located at latitude -16.924 and longitude 145.766. Stay updated with localized weather information tailored for Cairns.