Kalgoorlie in December
Planning a trip to Kalgoorlie in December? Here's the honest weather briefing for what summer looks like on the ground.
Daytime highs average 34.2 degrees, dropping to 18.3 degrees overnight. That's a 16-degree swing between day and night. Comfortable during the day, with evenings that invite a light layer.
At 34.2 degrees, December runs 8.2 degrees above Kalgoorlie's annual average of 26.0 degrees.
You're looking at 65mm of rain across 5 days in a typical December. Moderate, often falling in a few good dumps rather than constant drizzle.
Solar exposure averages 30.0 MJ/m2 per day in December, with UV levels in the extreme range. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
December scores 3.7/10 on our Comfort Score. It's the tough end of the year weather-wise.
Packing tip: bring light, breathable clothing, something warmer for mornings and evenings, a rain jacket or compact umbrella, and serious sun protection.
Check the data table below for the full picture, or compare Kalgoorlie in December with another destination.
December at a Glance
Temperature Range
Daily temperature range in December. 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
- Strong sun protection including a hat and SPF 50+
- Extra layers for large temperature swings between day and night
Coming From Overseas?
How December in Kalgoorlie stacks up against major cities around the world.
About 26 degrees warmer and considerably wetter.
About 28 degrees warmer and considerably drier.
About 22 degrees warmer and considerably wetter.
How December Compares
Kalgoorlie's monthly climate at a glance. December is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 34.5 | 19.2 | 15mm | 3.8 |
| Feb | 35.1 | 19.8 | 15mm | 3.5 |
| Mar | 26.1 | 15.7 | 45mm | 8.9 |
| Apr | 23.3 | 12.0 | 20mm | 10.0 |
| May | 23.5 | 11.4 | 10mm | 10.0 |
| Jun | 17.0 | 8.8 | 83mm | 4.1 |
| Jul | 16.5 | 6.2 | 39mm | 4.7 |
| Aug | 20.4 | 8.6 | 15mm | 7.9 |
| Sep | 23.6 | 9.7 | 8mm | 10.0 |
| Oct | 29.7 | 14.1 | 5mm | 7.3 |
| Nov | 28.7 | 14.7 | 64mm | 7.5 |
| Dec | 34.2 | 18.3 | 65mm | 3.7 |