Mackay in September
September in Mackay is peak spring, and the weather reflects it. You're looking at average daily highs of 25.5 degrees.
Expect the mercury to hit around 25.5 degrees during the day and settle at 18.7 degrees after dark. The temperature stays pretty consistent through the day. That's solidly pleasant territory. Great for being outdoors.
September's temperature is very close to the annual average for Mackay.
Rainfall in September averages 11mm over about 3 days. That means roughly a 10% chance of rain on any given day, so you can leave the umbrella at the hotel.
Solar exposure averages 21.1 MJ/m2 per day in September, with UV levels in the extreme range. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
September earns a 10.0/10 on our Comfort Score. This is prime time.
For your suitcase: t-shirts with a light layer for evenings, and serious sun protection.
The full data breakdown is below. You can also see how other Australian cities compare in September.
September at a Glance
Temperature Range
Daily temperature range in September. 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 September in Mackay stacks up against major cities around the world.
About 6 degrees warmer and considerably drier.
About 0 degrees cooler and considerably drier.
About 2 degrees cooler and considerably drier.
How September Compares
Mackay's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 30.2 | 25.4 | 172mm | 4.4 |
| Feb | 29.3 | 24.4 | 260mm | 4.6 |
| Mar | 28.1 | 24.3 | 142mm | 5.4 |
| Apr | 26.7 | 21.7 | 117mm | 6.9 |
| May | 23.9 | 19.7 | 70mm | 8.5 |
| Jun | 22.7 | 14.0 | 53mm | 9.1 |
| Jul | 21.6 | 14.6 | 20mm | 8.6 |
| Aug | 23.2 | 16.5 | 35mm | 9.4 |
| Sep | 25.5 | 18.7 | 11mm | 10.0 |
| Oct | 27.1 | 21.0 | 28mm | 8.8 |
| Nov | 28.6 | 23.7 | 136mm | 6.8 |
| Dec | 29.0 | 24.1 | 230mm | 5.1 |