Kōya monthly weather averages

Average daytime temperature

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

Kōya average temperature chart (Celsius) Kōya average temperature chart (Fahrenheit)
Average monthly temperatures in Kōya (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.2 6.8 10.2 16.3 20.4 23.4 27.1 28.4 24.8 19.4 14.3 9
°F 43.2 44.3 50.3 61.3 68.7 74.1 80.8 83.2 76.6 66.8 57.7 48.2

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.

Kōya monthly rainfall chart (mm) Kōya monthly rainfall chart (inches)
Average monthly rainfall in Kōya (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 51 73 124 191 198 295 248 211 272 164 108 42
inches 2 2.9 4.9 7.5 7.8 11.6 9.7 8.3 10.7 6.5 4.2 1.7
Rainy days 17 17 18 16 16 19 19 17 18 15 13 14

Average annual rainfall in Kōya: 2146.433mm (845.1 inches)

Average daily sunshine

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

Kōya average daily sunshine chart
Average daily sunshine Kōya
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5 5.1 5.7 6 6.4 4.9 5.7 6.5 5 5.3 5.2 5.1

Day / night temperatures

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

Kōya average minimum / maximum temperatures (Celsius) Kōya average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Kōya (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -1.2 -1 1.4 7.3 11.8 16.3 20.5 21.2 17.7 11.5 6.1 1.2
Max °C 6.4 7 10.4 16.5 20.6 23.6 27.3 28.6 25 19.6 14.5 9.2
Min °F 29.8 30.2 34.5 45.1 53.2 61.3 68.9 70.2 63.8 52.6 43 34.2
Max °F 36.7 37.4 42.6 53.4 61.2 67.8 75 76.8 70.3 59.9 50.5 41.4

Sea temperature

The graph below shows the average sea temperature.

Kōya average sea temperature chart (Celsius) Kōya average sea temperature chart (Fahrenheit)
Average sea temperature around Kōya in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 16.5 15.5 15.5 16.8 19.4 22.5 25.7 27.7 26.4 23.7 21.3 18.7
°F 61.8 59.9 59.9 62.3 66.9 72.6 78.3 81.8 79.5 74.7 70.3 65.6

Wind speed

The graph below shows the average wind speed.

Kōya average winspeed by month (km/h) Kōya average winspeed by month (mph)
Average wind speed in Kōya (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 16 16 15 15 13 13 12 13 12 13 13 14
mph 10 10 9 9 8 8 7 8 8 8 8 9

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.

Kōya relative humidity averages
Average relative humidity in Kōya
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
66% 67% 67% 70% 72% 79% 82% 80% 79% 74% 72% 68%

Other monthly averages

UV index Best time to go?

Kōya weather stats

Kōya weather statistics
Hottest month: August 28.4°C 83.1°F
Driest month: December 42mm 1.7ins
Sunniest month: December 5.1hrs
Coldest month: January 6.2°C 43.2°F
Wettest month: June 295mm 11.6ins
Warmest sea: August 27.7°C 81.9°F
Map showing location of Kōya (34.21294, 135.62244) Kōya map pin © Google

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