Cairns in August
August in Cairns is peak winter, and the weather reflects it. You're looking at average daily highs of 25.6 degrees.
Daytime highs average 25.6 degrees, dropping to 17.8 degrees overnight. That's a 8-degree swing between day and night. Comfortable during the day, with evenings that invite a light layer.
August is 2.7 degrees cooler than Cairns's yearly average.
Rainfall in August averages 61mm over about 12 days. That means roughly a 40% chance of rain on any given day, pack a compact umbrella just in case.
Solar exposure averages 17.5 MJ/m2 per day in August, with UV levels in the very high range. You'll want SPF 50+ and a decent hat.
August earns a 8.6/10 on our Comfort Score. This is prime time.
Packing tip: bring t-shirts with a light layer for evenings, waterproof gear, and serious sun protection.
Check the data table below for the full picture, or compare Cairns in August with another destination.
August at a Glance
Temperature Range
Daily temperature range in August. 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
- Sunscreen (SPF 30+) and sunglasses for UV protection
Coming From Overseas?
How August in Cairns stacks up against major cities around the world.
About 2 degrees warmer and considerably wetter.
About 4 degrees cooler and considerably drier.
About 5 degrees cooler and considerably drier.
How August Compares
Cairns's monthly climate at a glance. August is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 31.2 | 24.5 | 689mm | 2.9 |
| Feb | 30.5 | 24.3 | 316mm | 3.4 |
| Mar | 29.5 | 23.8 | 514mm | 3.7 |
| Apr | 28.6 | 22.1 | 121mm | 5.4 |
| May | 26.1 | 20.6 | 82mm | 6.9 |
| Jun | 25.9 | 16.7 | 18mm | 9.0 |
| Jul | 24.6 | 16.9 | 66mm | 9.2 |
| Aug | 25.6 | 17.8 | 61mm | 8.6 |
| Sep | 27.1 | 19.1 | 60mm | 7.9 |
| Oct | 29.1 | 20.5 | 25mm | 7.3 |
| Nov | 30.2 | 21.7 | 61mm | 6.1 |
| Dec | 30.9 | 23.6 | 379mm | 3.5 |