Nishi-Tokyo monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Nishi-Tokyo

Nishi-Tokyo average temperature chart (Celsius) Nishi-Tokyo average temperature chart (Fahrenheit)
Average monthly temperatures in Nishi-Tokyo (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.3 9.6 12.6 18.3 22.7 25.1 28.6 30.7 26.2 20.9 16.2 11.8
°F 48.8 49.2 54.6 65 72.9 77.2 83.5 87.3 79.2 69.6 61.2 53.3

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.

Nishi-Tokyo monthly rainfall chart (mm) Nishi-Tokyo monthly rainfall chart (inches)
Average monthly rainfall in Nishi-Tokyo (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 40 53 89 114 135 187 137 163 188 157 78 42
inches 1.6 2.1 3.5 4.5 5.3 7.4 5.4 6.4 7.4 6.2 3.1 1.6
Rainy days 8 11 16 16 16 20 19 16 19 16 12 8

Average annual rainfall in Nishi-Tokyo: 1558.233mm (613.5 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Nishi-Tokyo

Nishi-Tokyo average daily sunshine chart
Average daily sunshine Nishi-Tokyo
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.5 6.1 6 5.8 6.3 4.4 4.8 6.2 4.2 4.7 5.3 6.3

Day / night temperatures

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

Nishi-Tokyo average minimum / maximum temperatures (Celsius) Nishi-Tokyo average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Nishi-Tokyo (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -0.4 0.4 3.2 9.1 13.9 18.1 21.8 23.3 19.4 13.1 7.4 2.2
Max °C 9.6 9.8 12.8 18.6 23 25.3 28.8 30.9 26.4 21.1 16.5 12.1
Min °F 31.4 32.7 37.8 48.3 56.9 64.6 71.2 73.9 66.9 55.6 45.2 35.9
Max °F 40.3 41.2 46.4 56.8 65.1 71.1 77.5 80.8 73.2 62.8 53.4 44.8

Sea temperature

The graph below shows the average sea temperature.

Nishi-Tokyo average sea temperature chart (Celsius) Nishi-Tokyo average sea temperature chart (Fahrenheit)
Average sea temperature around Nishi-Tokyo in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 16.7 15.7 15.9 17.3 19.9 22.2 24.5 26.3 25.3 22.9 20.9 18.6
°F 62.1 60.3 60.6 63.1 67.8 72 76.1 79.4 77.6 73.2 69.6 65.5

Wind speed

The graph below shows the average wind speed.

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

Nishi-Tokyo relative humidity averages
Average relative humidity in Nishi-Tokyo
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
55% 56% 59% 66% 69% 76% 79% 76% 77% 72% 66% 59%

Other monthly averages

UV index Best time to go?

Nishi-Tokyo weather stats

Nishi-Tokyo weather statistics
Hottest month: August 30.7°C 87.3°F
Driest month: January 40mm 1.6ins
Sunniest month: January 6.5hrs
Coldest month: January 9.3°C 48.7°F
Wettest month: September 188mm 7.4ins
Warmest sea: August 26.3°C 79.3°F
Map showing location of Nishi-Tokyo (35.72526, 139.5383) Nishi-Tokyo map pin © Google

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