SeasonMapKatoomba (Blue Mountains) weather by month
Australia
The best time to visit Katoomba (Blue Mountains) is April, September and October — 92/100 in October, 19°C and 12 rainy days. The best season is spring, September to November (89/100 on average).
The worst month is July at 76/100 — cold, rainy, clean air. See July →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Australia →
Katoomba, month by month
Comfort score out of 100 for the kind of trip Katoomba is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 79 | B | 25°C | 17 d | 10 h | Peak | 3 |
| FebFebruary | 81 | A | 24°C | 15 d | 10 h | Shoulder | 2 |
| MarMarch | 79 | B | 21°C | 16 d | 9 h | Quiet | 2 |
| AprApril | 90 | S | 18°C | 9 d | 9 h | Busy | — |
| MayMay | 85 | A | 14°C | 10 d | 8 h | Shoulder | 1 |
| JunJune | 78 | B | 10°C | 11 d | 8 h | Peak | 2 |
| JulJuly | 76 | B | 10°C | 10 d | 8 h | Peak | 2 |
| AugAugust | 82 | A | 12°C | 10 d | 9 h | Busy | 2 |
| SepSeptember | 88 | A | 16°C | 8 d | 10 h | Busy | 1 |
| OctOctober | 92 | S | 19°C | 12 d | 10 h | Busy | 2 |
| NovNovember | 88 | A | 21°C | 12 d | 11 h | Shoulder | 3 |
| DecDecember | 86 | A | 24°C | 11 d | 11 h | Peak | 3 |
What's on in Katoomba through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
- May
- Cloud in the valley1 May – 31 Aug (usually)Season
- June
- Yulefest1 Jun – 31 AugFestival
- September
- Waratahs and heath in flower15 Sep – 15 Nov (usually)Nature
- October
- Bushfire season1 Oct – 1 Mar (usually)Hazard
- November
- Canyoning season1 Nov – 31 MarSeason
- December
- New South Wales summer holidays18 Dec – 27 Jan (usually)Holiday
Crowds in Katoomba in October
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySpring break in Australia, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet