Iwamizawa monthly weather averages

Contents

Average daytime temperature

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

Iwamizawa average temperature chart (Celsius) Iwamizawa average temperature chart (Fahrenheit)
Average monthly temperatures in Iwamizawa (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -2.7 -2 2.5 10.4 16.9 20.8 24.4 25.7 21.4 15 7.3 0.7
°F 27.2 28.5 36.5 50.7 62.4 69.5 75.9 78.3 70.6 58.9 45.1 33.3

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.

Iwamizawa monthly rainfall chart (mm) Iwamizawa monthly rainfall chart (inches)
Average monthly rainfall in Iwamizawa (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 109 85 61 63 68 74 92 154 133 113 115 122
inches 4.3 3.4 2.4 2.5 2.7 2.9 3.6 6.1 5.2 4.4 4.5 4.8
Rainy days 27 24 24 17 17 16 17 18 18 21 24 28

Average annual rainfall in Iwamizawa: 1374mm (540.9 inches)

Average daily sunshine

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

Iwamizawa average daily sunshine chart
Average daily sunshine Iwamizawa
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.3 4.4 5.7 6.4 6.8 6.3 5.6 5.5 6 5.3 3.3 2.7

Day / night temperatures

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

Iwamizawa average minimum / maximum temperatures (Celsius) Iwamizawa average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Iwamizawa (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -10.5 -10.3 -5.5 1.2 6.7 11.8 16.4 17.7 12.2 5.4 -0.5 -6.3
Max °C -2.5 -1.8 2.7 10.6 17.2 21.1 24.6 25.9 21.7 15.2 7.5 0.9
Min °F 13.1 13.6 22.1 34.2 44 53.2 61.5 63.9 53.9 41.7 31.2 20.7
Max °F 20.3 21.2 29.5 42.6 53.4 61.5 68.9 71.2 62.4 50.5 38.3 27.1

Sea temperature

The graph below shows the average sea temperature.

Iwamizawa average sea temperature chart (Celsius) Iwamizawa average sea temperature chart (Fahrenheit)
Average sea temperature around Iwamizawa in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 5.4 4 4.4 6.2 9.3 13.5 17.9 21.1 20.4 16.6 12.2 8.4
°F 41.8 39.2 40 43.1 48.7 56.3 64.2 70 68.8 61.9 54 47.2

Wind speed

The graph below shows the average wind speed.

Iwamizawa average winspeed by month (km/h) Iwamizawa average winspeed by month (mph)
Average wind speed in Iwamizawa (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 11 11 11 12 12 10 10 10 10 12 12 11
mph 7 7 7 8 7 7 6 6 6 7 7 7

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.

Iwamizawa relative humidity averages
Average relative humidity in Iwamizawa
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
78% 76% 74% 70% 71% 78% 81% 81% 78% 74% 75% 77%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Iwamizawa weather stats

Iwamizawa weather statistics
Hottest month: August 25.7°C 78.3°F
Driest month: March 61mm 2.4ins
Sunniest month: April 6.4hrs
Coldest month: January -2.7°C 27.1°F
Wettest month: August 154mm 6.1ins
Warmest sea: August 21.1°C 70°F
Map showing location of Iwamizawa (43.20028, 141.75972) Iwamizawa map pin © Google

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