August · Australia
Best time to visit Blue Mountains in August Weather, crowds & prices
Weather in Blue Mountains in August
Average temperature 9°C, 36 mm of rain, about 9 days with 6+ hours of sunshine and 78% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
7.0/10
Ranked #8 of 12 months
- Avg temp
- 9°C
- Rainfall
- 36 mm
- Humidity
- 78%
- Days with 6h+ sun
- 9
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
August in Blue Mountains scores 7.0/10 for nature and wildlife travel - ranked #8 of 12. Expect around 9°C, 36 mm of rain, and roughly 9 days with 6+ hours of sunshine this month.
The Blue Mountains' eucalyptus haze, cliffs and Three Sisters rise west of Sydney.
August in Blue Mountains — reliably good (8th best month)
Expect 9°C (48°F) in August. A good month for city streets, viewpoints and long meals; leave swimming for another season.
With around 36 mm of rain, any showers tend to pass through rather than settle in; about 9 days with 6+ hours of sunshine and 10.7 hours of daylight fill the rest.
That is 7/10 on the same scale — 8th 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 mid-season pricing, and crowds are moderate.
If your dates are flexible, December is materially better in Blue Mountains — 2.5 points higher on the same scale.
Frequently asked
- What is the weather like in Blue Mountains in August?
- In August, Blue Mountains averages 9°C, 36 mm of rain, and about 9 days with 6+ hours of sunshine. Its climate-comfort score is 7.0/10.
- Is August a good time to visit Blue Mountains?
- August earns a 7.0/10 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 August?
- Expect about 36 mm of rain in August. Average humidity is 78% and there are about 9 days with 6+ hours of sunshine.
Curated in Blue Mountains
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Blue Mountains, Australia. Live activities and tours from GetYourGuide, matched to this destination.