SeasonMapKatoomba (Blue Mountains) weather in May
Australia
May in Katoomba: cool, a little rain, with clean air — an excellent time to visit.
#6 of 12 months in Katoomba · #436 of 1383 destinations to visit in May · comfort 85/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Katoomba in May
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 — May
| Daytime high | 14°C / 57°F | 🙂 cool |
|---|---|---|
| Nighttime low | 6°C / 43°F | |
| Feels like (high) | 12°C / 54°F | |
| Rainfall | 58 mm / 2.3 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 5°C / 40°F | |
| Sunshine | 8.2 h/day | |
| Daylight | 10.4 h | |
| Wind | 13 km/h / 8 mph | |
| Snowfall | 0.3 cm / 0.1 in | |
| Air quality (US AQI) | 21 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Katoomba in May
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.
Shoulder seasonan ordinary month(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 May
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.
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 May — FAQ
- Is May a good time to visit Katoomba?
- May in Katoomba: cool, a little rain, with clean air — an excellent time to visit. It ranks #6 of 12 months for Katoomba on SeasonMap's comfort score (85/100).
- What is the weather like in Katoomba in May?
- In May, Katoomba averages a daily high of 13.8°C and a low of 5.9°C, with about 57.6 mm of rain over roughly 9.5 rainy days.
- What is the air quality in Katoomba in May?
- Katoomba has a mean US Air Quality Index of about 21 in May.
Other months in Katoomba
Compare Katoomba in May
Warmer or cooler than Katoomba in May
Similar destinations in Oceania — May
Within 300 km: Sydney's Humpback migration around 15 May – 15 Nov, and Canberra's Autumn colour around 15 Apr – 20 May.