Katoomba in January
January in Katoomba is peak summer, and the weather reflects it. You're looking at average daily highs of 23.2 degrees.
The average daily maximum is 23.2 degrees with overnight lows of 12.9 degrees. That's solidly pleasant territory. Great for being outdoors.
At 23.2 degrees, January runs 5.9 degrees above Katoomba's annual average of 17.3 degrees.
Rainfall in January averages 157mm over about 18 days. That means roughly a 60% chance of rain on any given day, so definitely bring rain gear.
Solar exposure averages 19.8 MJ/m2 per day in January, with UV levels in the very high range. You'll want SPF 50+ and a decent hat.
Our Comfort Score rates January at 8.7/10. That's about as good as it gets.
Packing tip: bring a mix of short and long sleeves, a rain jacket or compact umbrella, and SPF 50+ sunscreen and a hat.
Scroll down for the detailed climate data, or explore what nearby cities are like in January.
January at a Glance
Temperature Range
Daily temperature range in January. 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
- Sunscreen (SPF 30+) and sunglasses for UV protection
Coming From Overseas?
How January in Katoomba stacks up against major cities around the world.
About 15 degrees warmer and considerably wetter.
About 19 degrees warmer and considerably wetter.
About 13 degrees warmer and considerably wetter.
How January Compares
Katoomba's monthly climate at a glance. January is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 23.2 | 12.9 | 157mm | 8.7 |
| Feb | 23.0 | 12.5 | 97mm | 8.9 |
| Mar | 21.3 | 10.5 | 53mm | 8.1 |
| Apr | 16.6 | 6.2 | 218mm | 3.6 |
| May | 12.9 | 4.3 | 103mm | 1.0 |
| Jun | 9.6 | 0.8 | 123mm | 1.0 |
| Jul | 8.9 | 1.8 | 37mm | 1.0 |
| Aug | 13.2 | 3.6 | 44mm | 1.9 |
| Sep | 15.0 | 4.2 | 44mm | 3.9 |
| Oct | 17.3 | 5.9 | 53mm | 5.6 |
| Nov | 21.5 | 10.7 | 116mm | 8.0 |
| Dec | 25.0 | 12.0 | 41mm | 10.0 |