Warrnambool in December
December is right in the heart of summer for Warrnambool, and the weather has a definite personality this time of year.
The average daily maximum is 22.2 degrees with overnight lows of 13.5 degrees. That's solidly pleasant territory. Great for being outdoors.
At 22.2 degrees, December runs 4.2 degrees above Warrnambool's annual average of 18.0 degrees.
You're looking at 49mm of rain across 13 days in a typical December. Light enough that it won't ruin your plans.
Solar exposure averages 23.5 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 earns a 9.3/10 on our Comfort Score. This is prime time.
Packing tip: bring a mix of short and long sleeves, and SPF 50+ sunscreen and a hat.
Check the data table below for the full picture, or compare Warrnambool 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
- 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 Warrnambool stacks up against major cities around the world.
About 14 degrees warmer and considerably drier.
About 16 degrees warmer and considerably drier.
About 10 degrees warmer and considerably drier.
How December Compares
Warrnambool's monthly climate at a glance. December is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 21.6 | 14.7 | 58mm | 8.7 |
| Feb | 21.8 | 13.8 | 10mm | 9.8 |
| Mar | 21.9 | 13.8 | 15mm | 9.2 |
| Apr | 16.7 | 11.3 | 63mm | 3.6 |
| May | 15.9 | 9.4 | 29mm | 3.5 |
| Jun | 13.1 | 7.3 | 37mm | 1.5 |
| Jul | 13.1 | 7.2 | 98mm | 1.0 |
| Aug | 16.5 | 9.2 | 77mm | 3.7 |
| Sep | 14.9 | 9.8 | 84mm | 2.4 |
| Oct | 17.8 | 10.3 | 71mm | 5.5 |
| Nov | 20.7 | 12.0 | 85mm | 7.9 |
| Dec | 22.2 | 13.5 | 49mm | 9.3 |