Mount Isa in March
March in Mount Isa is peak autumn, and the weather reflects it. You're looking at average daily highs of 31.9 degrees.
Daytime highs average 31.9 degrees, dropping to 23.0 degrees overnight. That's a 9-degree swing between day and night. Warm days and warm nights. It doesn't cool down much, even after sunset.
March's temperature is very close to the annual average for Mount Isa.
You're looking at 113mm of rain across 9 days in a typical March. Moderate, often falling in a few good dumps rather than constant drizzle.
Solar exposure averages 20.4 MJ/m2 per day in March, with UV levels in the extreme range. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
At 4.5/10 on the Comfort Score, March is middle of the road.
Packing tip: bring loose cotton or linen gear, a rain jacket or compact umbrella, and serious sun protection.
The full data breakdown is below. You can also see how other Australian cities compare in March.
March at a Glance
Temperature Range
Daily temperature range in March. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- Cotton or linen fabrics to stay cool
- A light rain jacket just in case
- High SPF sunscreen (50+), sunglasses, and UV-protective clothing
Coming From Overseas?
How March in Mount Isa stacks up against major cities around the world.
About 20 degrees warmer and considerably wetter.
About 22 degrees warmer and considerably wetter.
About 18 degrees warmer and considerably drier.
How March Compares
Mount Isa's monthly climate at a glance. March is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 34.3 | 24.9 | 176mm | 2.1 |
| Feb | 31.2 | 23.1 | 132mm | 4.6 |
| Mar | 31.9 | 23.0 | 113mm | 4.5 |
| Apr | 30.0 | 18.6 | 1mm | 7.1 |
| May | 28.1 | 16.9 | 8mm | 7.9 |
| Jun | 24.6 | 12.0 | 4mm | 10.0 |
| Jul | 23.3 | 11.2 | 15mm | 10.0 |
| Aug | 29.5 | 16.1 | 0mm | 7.5 |
| Sep | 32.0 | 19.6 | 0mm | 5.9 |
| Oct | 36.3 | 23.2 | 11mm | 2.1 |
| Nov | 36.4 | 25.0 | 75mm | 1.2 |
| Dec | 37.7 | 25.2 | 16mm | 1.0 |