When is the best time to go to Ishigaki-jima?

When is the best time to go to Ishigaki-jima? Here's some information to help you in your decision:

  • The best months for good weather in Ishigaki-jima are April, May and June
  • On average, the warmest months are June, July, August and September
  • August is the rainiest month
  • The best months for swimming are May, June, July, August, September, October and November

For full information about the climate and weather in Ishigaki-jima a specific month, click on the corresponding line below:

January 68°F/72°F
February 70°F/72°F
March 72°F/74°F
April 76°F/79°F
May 81°F/83°F
June 85°F/88°F
July 86°F/90°F
August 86°F/90°F
September 85°F/88°F
October 81°F/83°F
November 77°F/79°F
December 72°F/74°F

Weather and climate in Ishigaki-jima

  • Between january and march the climate is passable, but still OK. By early evening, the temperature averages 72°F and it rains about 3.8in each month.
  • In april the climate is beautiful. In average, on the morning it is 74°F and, in april, 13 days of rain are expected.
  • Between the months of may and june the climate is just OK. At lunchtime, it's 86°F in average and you can expect to have 8in of rainfall/month during this period.
  • Between july and august the climate is bad. By early evening, the temperature averages 88°F and it rains about 62% of the time in august.
  • Between the months of september and december the climate is not good, but still OK. In average, on the morning it is 70°F and it rains about 6in each month.

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Charts: temperature and rainfall in Ishigaki-jima

In the charts below, you can see the following seasonal norms for the city of Ishigaki-jima: the minimum and maximum outdoor temperature, the risk and amount of monthly rainfall, daily average sunshine, sea temperature, and relative humidity for each month of the year.

Outside temperature

Precipitation (rainfall)

Daily sunshine hours

Sea temperature


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