August · Japan
Best time to visit Naoshima in August Weather, crowds & prices
Weather in Naoshima in August
Average temperature 29°C, 182 mm of rain, about 24 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
4.0/10
Ranked #12 of 12 months
- Avg temp
- 29°C
- Rainfall
- 182 mm
- Humidity
- 81%
- Days with 6h+ sun
- 24
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
August in Naoshima scores 4.0/10 for sightseeing and cultural travel - ranked #12 of 12. Expect around 29°C, 182 mm of rain, and roughly 24 days with 6+ hours of sunshine this month.
Naoshima is the Seto Inland Sea art island of Yayoi Kusama pumpkins, Tadao Ando museums, and slow ferry rhythms. Best window: late spring through early autumn.
August in Naoshima — the hardest end of the year
August averages 29°C (83°F) and humidity near 81%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Monthly rainfall reaches 182 mm — wet for this destination — but about 24 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 4/10 here, 12th of 12 months, against 7/10 in the destination's best month.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Figure on low-season pricing, with crowds are light for this destination.
Flexible dates? October scores 3 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Naoshima in August?
- In August, Naoshima averages 29°C, 182 mm of rain, and about 24 days with 6+ hours of sunshine. Its climate-comfort score is 4.0/10.
- Is August a good time to visit Naoshima?
- August earns a 4.0/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Naoshima in August?
- Expect about 182 mm of rain in August. Average humidity is 81% and there are about 24 days with 6+ hours of sunshine.
Curated in Naoshima
Tickets & experiences
Things to do in Naoshima
Naoshima, Japan. Live activities and tours from GetYourGuide, matched to this destination.