Melbourne in December
December in Melbourne is peak summer, and the weather reflects it. You're looking at average daily highs of 26.0 degrees.
The average daily maximum is 26.0 degrees with overnight lows of 14.7 degrees. Comfortable during the day, with evenings that invite a light layer.
At 26.0 degrees, December runs 6.1 degrees above Melbourne's annual average of 19.9 degrees.
The rain data says 46mm over 10 days. Nothing dramatic.
Sunshine-wise, December delivers around 27.0 MJ/m2 of daily solar radiation. UV sits in the extreme category. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
Our Comfort Score rates December at 9.3/10. That's about as good as it gets.
For your suitcase: t-shirts with a light layer for evenings, and SPF 50+ sunscreen and a hat.
Scroll down for the detailed climate data, or explore what nearby cities are like in December.
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
- T-shirts and shorts for daytime
- A waterproof jacket or compact umbrella
- High SPF sunscreen (50+), sunglasses, and UV-protective clothing
Coming From Overseas?
How December in Melbourne stacks up against major cities around the world.
About 18 degrees warmer and considerably drier.
About 20 degrees warmer and considerably drier.
About 14 degrees warmer and considerably drier.
How December Compares
Melbourne's monthly climate at a glance. December is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 24.5 | 14.8 | 141mm | 9.8 |
| Feb | 26.3 | 14.5 | 10mm | 9.7 |
| Mar | 24.8 | 13.9 | 20mm | 10.0 |
| Apr | 18.0 | 10.2 | 93mm | 4.8 |
| May | 16.3 | 7.7 | 40mm | 3.7 |
| Jun | 13.1 | 5.8 | 36mm | 1.4 |
| Jul | 12.3 | 6.1 | 99mm | 1.0 |
| Aug | 16.9 | 8.5 | 38mm | 4.7 |
| Sep | 16.9 | 8.8 | 62mm | 4.7 |
| Oct | 19.8 | 9.9 | 65mm | 7.5 |
| Nov | 23.5 | 13.0 | 76mm | 10.0 |
| Dec | 26.0 | 14.7 | 46mm | 9.3 |