Caloundra in December
December in Caloundra is peak summer, and the weather reflects it. You're looking at average daily highs of 28.0 degrees.
Daytime highs average 28.0 degrees, dropping to 21.1 degrees overnight. That's a 7-degree swing between day and night. Comfortable during the day, with evenings that invite a light layer.
At 28.0 degrees, December runs 2.9 degrees above Caloundra's annual average of 25.1 degrees.
The rain data says 245mm over 18 days. When it rains here, it means it.
Sunshine-wise, December delivers around 23.5 MJ/m2 of daily solar radiation. UV sits in the extreme category. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
At 5.8/10 on the Comfort Score, December is middle of the road.
For your suitcase: t-shirts with a light layer for evenings, a rain jacket or compact umbrella, and SPF 50+ sunscreen and a hat.
Scroll down for the detailed climate data, or explore what nearby cities are like in December.
December at a Glance
Temperature Range
Daily temperature range in December. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- T-shirts and shorts for daytime
- A waterproof jacket or compact umbrella
- High SPF sunscreen (50+), sunglasses, and UV-protective clothing
Coming From Overseas?
How December in Caloundra stacks up against major cities around the world.
About 20 degrees warmer and considerably wetter.
About 22 degrees warmer and considerably wetter.
About 16 degrees warmer and considerably wetter.
How December Compares
Caloundra's monthly climate at a glance. December is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 28.4 | 22.5 | 376mm | 4.8 |
| Feb | 28.5 | 21.6 | 208mm | 5.3 |
| Mar | 26.5 | 20.7 | 253mm | 6.1 |
| Apr | 25.1 | 17.6 | 155mm | 7.6 |
| May | 22.3 | 14.8 | 74mm | 7.4 |
| Jun | 21.6 | 11.0 | 20mm | 8.5 |
| Jul | 20.1 | 11.3 | 70mm | 6.8 |
| Aug | 23.3 | 13.8 | 102mm | 8.9 |
| Sep | 24.7 | 14.5 | 31mm | 10.0 |
| Oct | 25.6 | 17.0 | 96mm | 8.8 |
| Nov | 27.1 | 20.0 | 230mm | 6.3 |
| Dec | 28.0 | 21.1 | 245mm | 5.8 |