May · Australia
Best time to visit Blue Mountains in May Weather, crowds & prices
Weather in Blue Mountains in May
Average temperature 9°C, 42 mm of rain, about 5 days with 6+ hours of sunshine and 82% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
6.3/10
Ranked #10 of 12 months
- Avg temp
- 9°C
- Rainfall
- 42 mm
- Humidity
- 82%
- Days with 6h+ sun
- 5
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
May in Blue Mountains scores 6.3/10 for nature and wildlife travel - ranked #10 of 12. Expect around 9°C, 42 mm of rain, and roughly 5 days with 6+ hours of sunshine this month.
The Blue Mountains' eucalyptus haze, cliffs and Three Sisters rise west of Sydney.
May in Blue Mountains — workable with trade-offs
Expect 9°C (48°F) in May. A good month for city streets, viewpoints and long meals; leave swimming for another season.
With around 42 mm of rain, any showers tend to pass through rather than settle in; about 5 days with 6+ hours of sunshine and 10.3 hours of daylight fill the rest.
That is 6.3/10 on the same scale — 10th of 12 months, versus 9.5/10 for the best month here.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, footwear you can get muddy.
Expect low-season pricing, and crowds are light for this destination.
If your dates are flexible, December is materially better in Blue Mountains — 3.2 points higher on the same scale.
Frequently asked
- What is the weather like in Blue Mountains in May?
- In May, Blue Mountains averages 9°C, 42 mm of rain, and about 5 days with 6+ hours of sunshine. Its climate-comfort score is 6.3/10.
- Is May a good time to visit Blue Mountains?
- May earns a 6.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Blue Mountains in May?
- Expect about 42 mm of rain in May. Average humidity is 82% and there are about 5 days with 6+ hours of sunshine.
Curated in Blue Mountains
Tickets & experiences
Things to do in Blue Mountains
Blue Mountains, Australia. Live activities and tours from GetYourGuide, matched to this destination.