Ishigaki monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Ishigaki

Ishigaki average temperature chart (Celsius) Ishigaki average temperature chart (Fahrenheit)
Average monthly temperatures in Ishigaki (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 20.2 20.7 22.5 25.4 27.9 29.8 31.5 31.3 30.3 28 24.8 21.9
°F 68.3 69.2 72.6 77.8 82.3 85.7 88.8 88.3 86.6 82.4 76.7 71.4

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Ishigaki monthly rainfall chart (mm) Ishigaki monthly rainfall chart (inches)
Average monthly rainfall in Ishigaki (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 153 140 143 162 215 207 172 235 238 202 197 146
inches 6 5.5 5.6 6.4 8.5 8.2 6.8 9.3 9.4 7.9 7.8 5.8
Rainy days 24 22 23 20 22 20 20 22 22 22 24 24

Average annual rainfall in Ishigaki: 2358.6mm (928.6 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Ishigaki

Ishigaki average daily sunshine chart
Average daily sunshine Ishigaki
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2.7 2.8 3.5 4.8 5.1 6.7 8.7 7.7 6.8 5.3 3.5 3.1

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Ishigaki average minimum / maximum temperatures (Celsius) Ishigaki average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Ishigaki (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 15.3 15.8 17.6 20.5 23.2 25.5 26.8 26.2 25.2 22.9 20.1 17
Max °C 20.3 20.8 22.7 25.6 28.1 30 31.7 31.4 30.5 28.1 25 22
Min °F 59.5 60.4 63.6 68.8 73.7 77.8 80.2 79.2 77.3 73.2 68.1 62.6
Max °F 64 64.9 68.2 73.4 78.1 81.9 84.6 83.8 82 77.9 72.5 67.1

Sea temperature

The graph below shows the average sea temperature.

Ishigaki average sea temperature chart (Celsius) Ishigaki average sea temperature chart (Fahrenheit)
Average sea temperature around Ishigaki in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 23.8 23.4 23.9 25 26.6 28.2 29.3 29.2 28.6 27.6 26.3 24.8
°F 74.8 74.2 74.9 76.9 80 82.7 84.7 84.6 83.5 81.6 79.3 76.6

Wind speed

The graph below shows the average wind speed.

Ishigaki average winspeed by month (km/h) Ishigaki average winspeed by month (mph)
Average wind speed in Ishigaki (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 18 18 17 16 15 17 16 16 15 17 20 19
mph 11 11 11 10 9 11 10 10 9 11 12 12

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Ishigaki relative humidity averages
Average relative humidity in Ishigaki
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
75% 78% 79% 81% 84% 85% 81% 82% 81% 76% 76% 74%
Ishigaki

Other monthly averages

UV index Best time to go?

Ishigaki weather stats

Ishigaki weather statistics
Hottest month: July 31.5°C 88.7°F
Driest month: February 140mm 5.5ins
Sunniest month: July 8.7hrs
Coldest month: January 20.2°C 68.4°F
Wettest month: September 238mm 9.4ins
Warmest sea: July 29.3°C 84.7°F
Map showing location of Ishigaki (24.34478, 124.15717) Ishigaki map pin © Google

Top Japan locations