Ishigaki Island Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Ishigaki Island.
Climate overview of Ishigaki Island
Ishigaki Island, Okinawa islands, Japan, experiences moderate temperature changes through the seasons. July is the warmest month with daytime highs of 30°C (86°F), while January is the coolest at 22°C (72°F).
The city receives considerable rainfall, with around 2026 mm (80 in) annually. August is the wettest month. The sunniest month is July, with 8.7 hours of sunshine per day on average.
Ishigaki Island Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ishigaki Island — and find the best time to visit.
Monthly Temperature in Ishigaki Island
The weather in Ishigaki Island changes moderately throughout the year, offering enough variation to appreciate each season. Typically, average maximum daytime temperatures range from a very warm 30°C (86°F) in July to a comfortable 22°C (72°F) in the coolest month, January.
Nights vary from 28°C (82°F) in July to around 19°C (66°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Ishigaki Island
Ishigaki Island has a relatively rainy climate with high precipitation levels, averaging 2026 mm (80 in) of rainfall annually. Ishigaki Island offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month August (242 mm (9.5 in)) and the driest month March (135 mm (5.3 in)) is not too significant. For more details, please visit our Ishigaki Island Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Ishigaki Island
For those who appreciate different seasons, Ishigaki Island serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 8.7 hours of sunshine daily, and embrace the darker days in January, offering only 2.8 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Ishigaki Island by Month
The relative humidity is high throughout the year in Ishigaki Island.
The city experiences its highest humidity in June, reaching 81%. In December, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Ishigaki Island
Rainfall during this time ranges from 135 mm (5.3 in) in March to 148 mm (5.8 in) in October. This means you can expect a mix of sunny days and occasional showers.
The rainy season falls during January, April, May, June, August, September and December, bringing heavy precipitation. Ready to plan your travels but need destination ideas? Our smart tool recommends places based on the climate conditions you prefer. Start planning with our destination weather tool.
Frequently asked questions about the climate in Ishigaki Island
What is the best time to visit Ishigaki Island?
January, February, March, April, May, June, October, November and December typically offer the most optimal weather in Ishigaki Island. In contrast, August tends to have less optimal conditions.
What temperatures can I expect in Ishigaki Island?
Daytime highs range from 22°C (72°F) in January to 30°C (86°F) in July. Nighttime lows range from 19°C (66°F) to 28°C (82°F).
How much rain does Ishigaki Island get?
Annual rainfall is around 2026 mm (80 in). August is the wettest month with 242 mm (9.5 in), while March is the driest with 135 mm (5.3 in).
How sunny is Ishigaki Island?
Ishigaki Island receives around 1,849 hours of sunshine per year. July is the sunniest month with 262 hours, while January is the cloudiest with just 83 hours.
Ishigaki Island 3-Day Forecast
Ishigaki Island 3-Day Forecast
Ishigaki Island on the map
Ishigaki Island is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Osaka
32°C (90°F) Tokyo30°C (86°F) Naha
30°C (86°F) Kyoto31°C (88°F) Hakone28°C (82°F) Hakuba26°C (79°F) Sapporo24°C (75°F) Niseko24°C (75°F) 
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