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.
The rain data says 157mm over 18 days. That's serious rainfall.
Sunshine-wise, January delivers around 19.8 MJ/m2 of daily solar radiation. UV sits in the very high category. You'll want SPF 50+ and a decent hat.
January earns a 8.7/10 on our Comfort Score. This is prime time.
Packing tip: bring t-shirts with a light layer for evenings, a rain jacket or compact umbrella, and serious sun protection.
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
- Comfortable casual wear suitable for warm days
- 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 |