Dunsborough in December
Planning a trip to Dunsborough in December? Here's the honest weather briefing for what summer looks like on the ground.
The average daily maximum is 26.1 degrees with overnight lows of 14.9 degrees. That's solidly pleasant territory. Great for being outdoors.
At 26.1 degrees, December runs 3.9 degrees above Dunsborough's annual average of 22.2 degrees.
Rainfall in December averages 8mm over about 2 days. That means roughly a 7% chance of rain on any given day, so you can leave the umbrella at the hotel.
Sunshine-wise, December delivers around 28.8 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.
Our Comfort Score rates December at 9.9/10. That's about as good as it gets.
Packing tip: bring a mix of short and long sleeves, and SPF 50+ sunscreen and a hat.
The full data breakdown is below. You can also see how other Australian cities compare 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
- High SPF sunscreen (50+), sunglasses, and UV-protective clothing
Coming From Overseas?
How December in Dunsborough stacks up against major cities around the world.
About 18 degrees warmer and considerably drier.
About 20 degrees warmer and considerably drier.
About 14 degrees warmer and considerably drier.
How December Compares
Dunsborough's monthly climate at a glance. December is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 28.2 | 17.4 | 2mm | 8.5 |
| Feb | 29.7 | 18.1 | 3mm | 7.4 |
| Mar | 26.5 | 16.1 | 12mm | 9.4 |
| Apr | 24.6 | 14.7 | 6mm | 10.0 |
| May | 21.2 | 15.1 | 111mm | 7.0 |
| Jun | 17.4 | 12.3 | 114mm | 3.6 |
| Jul | 16.5 | 12.1 | 176mm | 2.2 |
| Aug | 16.8 | 13.1 | 165mm | 2.8 |
| Sep | 17.8 | 11.2 | 29mm | 5.8 |
| Oct | 19.9 | 12.9 | 53mm | 7.5 |
| Nov | 21.8 | 13.1 | 15mm | 9.7 |
| Dec | 26.1 | 14.9 | 8mm | 9.9 |