August · Japan
Best time to visit Ishigaki in August Weather, crowds & prices
Weather in Ishigaki in August
Average temperature 29°C, 163 mm of rain, about 29 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
7.7/10
Ranked #2 of 12 months
- Avg temp
- 29°C
- Rainfall
- 163 mm
- Humidity
- 81%
- Days with 6h+ sun
- 29
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Ishigaki scores 7.7/10 for beach and coastal travel - one of the top 12-month picks (#2). Expect around 29°C, 163 mm of rain, and roughly 29 days with 6+ hours of sunshine this month.
Ishigaki's coral reefs and beaches sit at the southern end of the Japanese archipelago.
August in Ishigaki: strong conditions, 2nd of 12
Days in August average 29°C (84°F) and humidity near 81% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
163 mm of rain makes this a wet month here, though with about 29 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.7/10 on the same scale — 2nd of 12 months, versus 7.9/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Budget for peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Ishigaki in August?
- In August, Ishigaki averages 29°C, 163 mm of rain, and about 29 days with 6+ hours of sunshine. Its climate-comfort score is 7.7/10.
- Is August a good time to visit Ishigaki?
- August earns a 7.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Ishigaki in August?
- Expect about 163 mm of rain in August. Average humidity is 81% and there are about 29 days with 6+ hours of sunshine.
Curated in Ishigaki
Tickets & experiences
Things to do in Ishigaki
Ishigaki, Japan. Live activities and tours from GetYourGuide, matched to this destination.