SeasonMapKatoomba (Blue Mountains) weather in August
Australia
August in Katoomba: cold, a little rain, with clean air — an excellent time to visit.
#7 of 12 months in Katoomba · #582 of 1383 destinations to visit in August · comfort 82/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Katoomba in August
Other months in Katoomba
Katoomba's forum calls November good, reliable spring weather for exploring the Blue Mountains — regulars flag that the altitude keeps it noticeably cooler than Sydney, by as much as 10°C on a given day, so it's worth packing a layer even on a warm-looking Sydney forecast.
Add your own note from Katoomba's card on the map.
Katoomba climate normals — August
| Daytime high | 12°C / 54°F | 🧥 cold |
|---|---|---|
| Nighttime low | 3°C / 38°F | |
| Feels like (high) | 8°C / 46°F | |
| Rainfall | 71 mm / 2.8 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 2°C / 35°F | |
| Sunshine | 8.7 h/day | |
| Daylight | 10.9 h | |
| Wind | 16 km/h / 10 mph | |
| Snowfall | 0.9 cm / 0.4 in | |
| Air quality (US AQI) | 25 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Katoomba in August
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.
BusyYulefest, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Katoomba's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherKatoomba's weather doesn't swing hard through the year — comfort stays fairly steady in every month.
What's on in Katoomba in August
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Cloud in the valley
1 May – 31 Aug · usuallyFog seasonCold air pools in the Jamison Valley and the Three Sisters disappear for hours at a time, sometimes for a whole day. When it burns off from below it is the best view of the year.
- Festival
Yulefest
1 Jun – 31 AugChristmas & New YearCrowdedBook earlyChristmas in July, invented here in 1980 and now most of the winter: roaring fires, roast dinners and carols at the old guesthouses in Katoomba, Leura and Blackheath. Weekends book out. Source ↗
Nearby, and something's on
Within 300 km of Katoomba — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Katoomba?
Katoomba in August — FAQ
- Is August a good time to visit Katoomba?
- August in Katoomba: cold, a little rain, with clean air — an excellent time to visit. It ranks #7 of 12 months for Katoomba on SeasonMap's comfort score (82/100).
- What is the weather like in Katoomba in August?
- In August, Katoomba averages a daily high of 12°C and a low of 3.4°C, with about 71.2 mm of rain over roughly 9.8 rainy days.
- What is the air quality in Katoomba in August?
- Katoomba has a mean US Air Quality Index of about 25 in August.
Other months in Katoomba
Compare Katoomba in August
Warmer or cooler than Katoomba in August
Similar destinations in Oceania — August
Within 300 km: Sydney's Humpback migration around 15 May – 15 Nov, and Canberra's Frost and morning fog around 15 May – 31 Aug.