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Nagasaki Climate by Month

The graphs below provide an overview of the climate in Nagasaki (Nagasaki), Japan. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Forecast for Nagasaki

Sat   Jul 27
34°C | 28°C
SW 14 km/h
0.1 mm
partly cloudy and  chance of slight rain

partly cloudy and chance of slight rain

Sun   Jul 28
34°C | 27°C
SW 14 km/h
almost clear and no rain

almost clear and no rain

Mon   Jul 29
34°C | 27°C
W 14 km/h
0.3 mm
partly cloudy and small chance of slight rain

partly cloudy and small chance of slight rain

The best time of year to visit Nagasaki in Japan

During the months of May, June and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • When is summer in Nagasaki?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Nagasaki?
    August has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Nagasaki?
    The coldest month is January with an average maximum temperature of 12°C.
  • Which is the wettest month in Nagasaki?
    June tops the wettest month list with 451 mm of rainfall.
  • Which is the driest month in Nagasaki?
    January is the driest month with 91 mm of precipitation.
  • Which is the sunniest month in Nagasaki?
    August is the sunniest month with an average of 209 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.