Katanning in December
December in Katanning is peak summer, and the weather reflects it. You're looking at average daily highs of 29.2 degrees.
The average daily maximum is 29.2 degrees with overnight lows of 13.4 degrees. Comfortable during the day, with evenings that invite a light layer.
December is 6.6 degrees warmer than the yearly average here.
The rain data says 8mm over 1 days. That's barely a sprinkle.
Sunshine-wise, December delivers around 28.6 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.
The Comfort Score for December comes in at 7.8/10, solidly pleasant.
For your suitcase: t-shirts with a light layer for evenings, something warmer for mornings and evenings, and serious sun protection.
The full data breakdown is below. You can also see how other Australian cities compare 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
- High SPF sunscreen (50+), sunglasses, and UV-protective clothing
- Extra layers for large temperature swings between day and night
Coming From Overseas?
How December in Katanning stacks up against major cities around the world.
About 21 degrees warmer and considerably drier.
About 23 degrees warmer and considerably drier.
About 17 degrees warmer and considerably drier.
How December Compares
Katanning's monthly climate at a glance. December is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 29.4 | 14.9 | 29mm | 7.4 |
| Feb | 31.7 | 16.0 | 6mm | 6.0 |
| Mar | 25.9 | 13.7 | 11mm | 9.6 |
| Apr | 23.0 | 11.2 | 1mm | 10.0 |
| May | 20.7 | 10.8 | 25mm | 7.5 |
| Jun | 15.8 | 7.6 | 37mm | 3.6 |
| Jul | 15.3 | 7.2 | 80mm | 2.8 |
| Aug | 15.7 | 7.7 | 70mm | 3.1 |
| Sep | 17.5 | 7.1 | 19mm | 6.0 |
| Oct | 22.5 | 9.7 | 16mm | 10.0 |
| Nov | 24.3 | 10.7 | 20mm | 10.0 |
| Dec | 29.2 | 13.4 | 8mm | 7.8 |