Port Arthur in December
If December is your window for visiting Port Arthur, here's what the climate data says you can expect.
The average daily maximum is 20.1 degrees with overnight lows of 11.9 degrees. Comfortable during the day, with evenings that invite a light layer.
At 20.1 degrees, December runs 3.6 degrees above Port Arthur's annual average of 16.5 degrees.
The rain data says 122mm over 17 days. When it rains here, it means it.
Solar exposure averages 23.9 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 scores a respectable 7.1/10 for overall comfort.
For your suitcase: a decent jumper or fleece, waterproof gear, and serious sun protection.
Check the data table below for the full picture, or compare Port Arthur 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
- Layered clothing for mild to cool conditions
- A waterproof jacket or compact umbrella
- High SPF sunscreen (50+), sunglasses, and UV-protective clothing
Coming From Overseas?
How December in Port Arthur stacks up against major cities around the world.
About 12 degrees warmer and considerably wetter.
About 14 degrees warmer and considerably wetter.
About 8 degrees warmer and considerably wetter.
How December Compares
Port Arthur's monthly climate at a glance. December is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 20.7 | 13.0 | 99mm | 7.8 |
| Feb | 21.5 | 13.2 | 23mm | 9.0 |
| Mar | 19.6 | 12.1 | 29mm | 6.9 |
| Apr | 16.4 | 10.4 | 77mm | 3.8 |
| May | 14.1 | 9.2 | 36mm | 1.9 |
| Jun | 11.7 | 7.7 | 37mm | 1.0 |
| Jul | 11.7 | 6.7 | 72mm | 1.0 |
| Aug | 14.1 | 8.1 | 89mm | 1.5 |
| Sep | 14.1 | 7.4 | 54mm | 2.6 |
| Oct | 15.8 | 8.4 | 73mm | 4.1 |
| Nov | 18.2 | 10.4 | 64mm | 6.3 |
| Dec | 20.1 | 11.9 | 122mm | 7.1 |