Onagawa Chō monthly weather averages

Average daytime temperature

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

Onagawa Chō average temperature chart (Celsius) Onagawa Chō average temperature chart (Fahrenheit)
Average monthly temperatures in Onagawa Chō (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3.9 4.3 7.5 13.2 17.9 21 24.4 26.8 23 17.8 12.4 7
°F 39.1 39.7 45.5 55.8 64.3 69.8 75.8 80.3 73.4 64.1 54.3 44.5

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.

Onagawa Chō monthly rainfall chart (mm) Onagawa Chō monthly rainfall chart (inches)
Average monthly rainfall in Onagawa Chō (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 37 49 72 103 111 123 135 143 157 116 69 30
inches 1.4 1.9 2.8 4 4.4 4.8 5.3 5.6 6.2 4.6 2.7 1.2
Rainy days 19 18 18 16 16 18 20 18 19 16 16 18

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Onagawa Chō

Onagawa Chō average daily sunshine chart
Average daily sunshine Onagawa Chō
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.8 6 6.4 6.6 7 5.4 5 5.9 4.6 5.3 5.2 5.3

Day / night temperatures

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

Onagawa Chō average minimum / maximum temperatures (Celsius) Onagawa Chō average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Onagawa Chō (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -3.5 -3.3 -0.7 4.6 9.7 14.3 18.3 20.4 16.1 9.4 3.8 -0.8
Max °C 4.1 4.5 7.7 13.5 18.2 21.2 24.5 27 23.2 18.1 12.6 7.2
Min °F 25.7 26.2 30.7 40.2 49.4 57.7 64.9 68.7 60.9 48.8 38.8 30.7
Max °F 32.5 33.1 38.3 48.2 57 63.9 70.5 74.7 67.3 56.7 46.8 37.8

Sea temperature

The graph below shows the average sea temperature.

Onagawa Chō average sea temperature chart (Celsius) Onagawa Chō average sea temperature chart (Fahrenheit)
Average sea temperature around Onagawa Chō in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 12.4 10.5 10.4 12.3 15.5 19.1 21.6 24.3 23.2 20.2 17.7 15.1
°F 54.2 51 50.7 54.1 59.9 66.4 70.9 75.7 73.8 68.3 63.8 59.3

Wind speed

The graph below shows the average wind speed.

Onagawa Chō average winspeed by month (km/h) Onagawa Chō average winspeed by month (mph)
Average wind speed in Onagawa Chō (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 10 10 11 11 10 9 8 9 8 9 10 10
mph 6 6 7 7 6 5 5 5 5 6 6 6

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.

Onagawa Chō relative humidity averages
Average relative humidity in Onagawa Chō
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
68% 69% 67% 69% 73% 82% 85% 83% 81% 76% 71% 69%

Other monthly averages

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Onagawa Chō weather stats

Onagawa Chō weather statistics
Hottest month: August 26.8°C 80.2°F
Driest month: December 30mm 1.2ins
Sunniest month: January 5.8hrs
Coldest month: January 3.9°C 39°F
Wettest month: September 157mm 6.2ins
Warmest sea: August 24.3°C 75.7°F
Map showing location of Onagawa Chō (38.44491, 141.43269)

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