Kumamoto monthly weather averages

Average daytime temperature

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

Kumamoto average temperature chart (Celsius) Kumamoto average temperature chart (Fahrenheit)
Average monthly temperatures in Kumamoto (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.9 11.2 15.1 20.9 24.8 27.5 31.2 32.4 28.9 23.8 18 12.4
°F 49.8 52.1 59.2 69.7 76.7 81.5 88.1 90.4 84.1 74.8 64.4 54.3

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.

Kumamoto monthly rainfall chart (mm) Kumamoto monthly rainfall chart (inches)
Average monthly rainfall in Kumamoto (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 63 80 126 168 209 396 389 197 169 96 74 51
inches 2.5 3.2 4.9 6.6 8.2 15.6 15.3 7.7 6.7 3.8 2.9 2
Rainy days 17 17 18 17 16 19 20 18 17 13 13 16

Average daily sunshine

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

Kumamoto average daily sunshine chart
Average daily sunshine Kumamoto
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.5 4.8 5.5 5.7 6.1 4.9 6.2 7.1 5.7 6.1 5.3 4.7

Day / night temperatures

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

Kumamoto average minimum / maximum temperatures (Celsius) Kumamoto average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Kumamoto (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 0.5 1.6 4.5 10.2 14.5 19.1 23.7 24 20.1 13.2 7.4 2.4
Max °C 10.1 11.4 15.4 21.2 25.1 27.7 31.4 32.7 29.2 24.1 18.3 12.7
Min °F 32.9 34.9 40 50.4 58.1 66.4 74.6 75.1 68.1 55.7 45.2 36.2
Max °F 41.5 43.7 49.8 60.3 67.6 74.1 81.5 82.9 76.3 65.5 55 45.5

Sea temperature

The graph below shows the average sea temperature.

Kumamoto average sea temperature chart (Celsius) Kumamoto average sea temperature chart (Fahrenheit)
Average sea temperature around Kumamoto in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 18.7 17.8 18.1 19 20.9 23.3 26.5 28.3 27.2 25.1 23.1 20.7
°F 65.6 64 64.5 66.2 69.6 74 79.6 82.9 80.9 77.2 73.5 69.2

Wind speed

The graph below shows the average wind speed.

Kumamoto average winspeed by month (km/h) Kumamoto average winspeed by month (mph)
Average wind speed in Kumamoto (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 7 7 7 7 7 7 7 7 7 7 6 6
mph 4 5 5 5 4 4 5 4 4 4 4 4

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.

Kumamoto relative humidity averages
Average relative humidity in Kumamoto
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
72% 71% 69% 71% 73% 78% 80% 77% 77% 74% 75% 75%

Other monthly averages

UV index Best time to go?

Kumamoto weather stats

Kumamoto weather statistics
Hottest month: August 32.4°C 90.3°F
Driest month: December 51mm 2ins
Sunniest month: August 7.1hrs
Coldest month: January 9.9°C 49.8°F
Wettest month: June 396mm 15.6ins
Warmest sea: August 28.3°C 82.9°F
Map showing location of Kumamoto (32.78972, 130.74167)

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