Cairns in May
May in Cairns is peak autumn, and the weather reflects it. You're looking at average daily highs of 26.1 degrees.
The average daily maximum is 26.1 degrees with overnight lows of 20.6 degrees. Comfortable during the day, with evenings that invite a light layer.
May is 2.2 degrees cooler than Cairns's yearly average.
The rain data says 82mm over 21 days. A decent amount, but not relentless.
Sunshine-wise, May delivers around 14.8 MJ/m2 of daily solar radiation. UV sits in the very high category. You'll want SPF 50+ and a decent hat.
May scores a respectable 6.9/10 for overall comfort.
Packing tip: bring t-shirts with a light layer for evenings, waterproof gear, and serious sun protection.
Scroll down for the detailed climate data, or explore what nearby cities are like in May.
May at a Glance
Temperature Range
Daily temperature range in May. 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
Coming From Overseas?
How May in Cairns stacks up against major cities around the world.
About 8 degrees warmer and considerably wetter.
About 3 degrees warmer and considerably drier.
About 2 degrees warmer and considerably drier.
How May Compares
Cairns's monthly climate at a glance. May 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 |