Karratha in May
May in Karratha is peak autumn, and the weather reflects it. You're looking at average daily highs of 31.5 degrees.
The average daily maximum is 31.5 degrees with overnight lows of 20.1 degrees. Warm days and warm nights. It doesn't cool down much, even after sunset.
At 31.5 degrees, May sits 2.5 degrees below the annual average of 34.0 degrees.
You're looking at 7mm of rain across 1 days in a typical May. Dry as a bone, really.
Solar exposure averages 17.7 MJ/m2 per day in May, with UV levels in the very high range. You'll want SPF 50+ and a decent hat.
At 5.6/10 on the Comfort Score, May is middle of the road.
Packing tip: bring loose cotton or linen gear, and SPF 50+ sunscreen and a hat.
Check the data table below for the full picture, or compare Karratha in May with another destination.
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
- Cotton or linen fabrics to stay cool
- Sunscreen (SPF 30+) and sunglasses for UV protection
Coming From Overseas?
How May in Karratha stacks up against major cities around the world.
About 14 degrees warmer and considerably drier.
About 8 degrees warmer and considerably drier.
About 8 degrees warmer and considerably drier.
How May Compares
Karratha's monthly climate at a glance. May is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 37.3 | 26.6 | 0mm | 1.0 |
| Feb | 38.8 | 27.4 | 6mm | 1.0 |
| Mar | 36.1 | 26.8 | 20mm | 2.1 |
| Apr | 34.0 | 23.1 | 61mm | 3.7 |
| May | 31.5 | 20.1 | 7mm | 5.6 |
| Jun | 27.1 | 16.7 | 28mm | 8.3 |
| Jul | 27.6 | 15.7 | 0mm | 8.4 |
| Aug | 29.8 | 17.4 | 13mm | 6.9 |
| Sep | 32.7 | 22.1 | 33mm | 5.0 |
| Oct | 36.6 | 23.8 | 0mm | 1.9 |
| Nov | 38.2 | 26.9 | 3mm | 1.0 |
| Dec | 38.7 | 27.8 | 10mm | 1.0 |