Nagasaki monthly weather averages

Average daytime temperature

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

Nagasaki average temperature chart (Celsius) Nagasaki average temperature chart (Fahrenheit)
Average monthly temperatures in Nagasaki (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.2 10 13.7 18.9 22.7 25.4 29.2 30.6 27.4 22.6 17.2 11.7
°F 48.5 50.1 56.6 66.1 72.9 77.8 84.6 87.1 81.4 72.7 63 53

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.

Nagasaki monthly rainfall chart (mm) Nagasaki monthly rainfall chart (inches)
Average monthly rainfall in Nagasaki (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 86 94 142 191 214 362 361 205 201 103 92 71
inches 3.4 3.7 5.6 7.5 8.4 14.3 14.2 8.1 7.9 4.1 3.6 2.8
Rainy days 21 19 19 17 16 19 20 17 17 13 15 20

Average daily sunshine

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

Nagasaki average daily sunshine chart
Average daily sunshine Nagasaki
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.5 4.1 5.3 5.7 6.2 5 6 7.3 5.9 6.2 5 3.8

Day / night temperatures

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

Nagasaki average minimum / maximum temperatures (Celsius) Nagasaki average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Nagasaki (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 2.5 3 5.8 10.7 14.7 18.8 23.5 24 20.4 14.6 9.4 4.6
Max °C 9.4 10.2 13.9 19.2 22.9 25.6 29.4 30.8 27.6 22.8 17.4 11.9
Min °F 36.4 37.4 42.4 51.2 58.5 65.8 74.2 75.2 68.7 58.3 48.9 40.2
Max °F 42.6 43.9 49.6 58.8 65.8 72 79.5 81.3 75.2 65.7 56.1 46.8

Sea temperature

The graph below shows the average sea temperature.

Nagasaki average sea temperature chart (Celsius) Nagasaki average sea temperature chart (Fahrenheit)
Average sea temperature around Nagasaki in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 18.3 17.4 17.6 18.6 20.4 22.8 26.1 28.1 27 24.9 22.7 20.4
°F 65 63.3 63.7 65.5 68.7 73 78.9 82.7 80.6 76.7 72.9 68.6

Wind speed

The graph below shows the average wind speed.

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

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.

Nagasaki relative humidity averages
Average relative humidity in Nagasaki
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
69% 69% 68% 72% 73% 80% 82% 78% 76% 70% 70% 70%

Other monthly averages

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Nagasaki weather stats

Nagasaki weather statistics
Hottest month: August 30.6°C 87.1°F
Driest month: December 71mm 2.8ins
Sunniest month: August 7.3hrs
Coldest month: January 9.2°C 48.6°F
Wettest month: June 362mm 14.3ins
Warmest sea: August 28.1°C 82.6°F
Map showing location of Nagasaki (32.74472, 129.87361)

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