December · Japan
Best time to visit Ishigaki in December Weather, crowds & prices
Weather in Ishigaki in December
Average temperature 21°C, 137 mm of rain, about 17 days with 6+ hours of sunshine and 72% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
6.2/10
Ranked #11 of 12 months
- Avg temp
- 21°C
- Rainfall
- 137 mm
- Humidity
- 72%
- Days with 6h+ sun
- 17
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $$ · Moderate Cost ($$)
December in Ishigaki scores 6.2/10 for beach and coastal travel - ranked #11 of 12. Expect around 21°C, 137 mm of rain, and roughly 17 days with 6+ hours of sunshine this month.
Ishigaki's coral reefs and beaches sit at the southern end of the Japanese archipelago.
December in Ishigaki — workable with trade-offs
With 21°C (69°F) on average, December delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
137 mm of rain signals a properly wet month, with only about 17 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 6.2/10 on the same scale — 11th of 12 months, versus 7.9/10 for the best month here.
Pack light clothing, swimwear and real sun protection, a proper rain shell rather than an umbrella.
Expect mid-season pricing, and crowds are light for this destination.
If your dates are flexible, April is materially better in Ishigaki — 1.7 points higher on the same scale.
Frequently asked
- What is the weather like in Ishigaki in December?
- In December, Ishigaki averages 21°C, 137 mm of rain, and about 17 days with 6+ hours of sunshine. Its climate-comfort score is 6.2/10.
- Is December a good time to visit Ishigaki?
- December earns a 6.2/10 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 December?
- Expect about 137 mm of rain in December. Average humidity is 72% and there are about 17 days with 6+ hours of sunshine.
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Ishigaki, Japan. Live activities and tours from GetYourGuide, matched to this destination.