Port Lincoln in December
December in Port Lincoln is peak summer, and the weather reflects it. You're looking at average daily highs of 24.2 degrees.
Daytime highs average 24.2 degrees, dropping to 15.4 degrees overnight. That's a 9-degree swing between day and night. That's solidly pleasant territory. Great for being outdoors.
December is 3.9 degrees warmer than the yearly average here.
Rainfall in December averages 24mm over about 3 days. That means roughly a 10% chance of rain on any given day, so you can leave the umbrella at the hotel.
Solar exposure averages 26.9 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 10.0/10 on our Comfort Score. This is prime time.
For your suitcase: t-shirts with a light layer for evenings, and SPF 50+ sunscreen and a hat.
Check the data table below for the full picture, or compare Port Lincoln 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
- Strong sun protection including a hat and SPF 50+
Coming From Overseas?
How December in Port Lincoln stacks up against major cities around the world.
About 16 degrees warmer and considerably drier.
About 18 degrees warmer and considerably drier.
About 12 degrees warmer and considerably drier.
How December Compares
Port Lincoln's monthly climate at a glance. December is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 24.0 | 15.9 | 54mm | 10.0 |
| Feb | 25.1 | 16.5 | 1mm | 10.0 |
| Mar | 24.8 | 16.7 | 4mm | 10.0 |
| Apr | 19.1 | 12.4 | 12mm | 6.8 |
| May | 18.4 | 11.3 | 8mm | 6.3 |
| Jun | 15.5 | 10.2 | 52mm | 3.0 |
| Jul | 14.9 | 9.6 | 42mm | 2.8 |
| Aug | 17.7 | 10.6 | 39mm | 5.3 |
| Sep | 17.6 | 11.0 | 42mm | 5.7 |
| Oct | 20.5 | 12.9 | 22mm | 8.6 |
| Nov | 22.3 | 14.1 | 34mm | 9.7 |
| Dec | 24.2 | 15.4 | 24mm | 10.0 |