Climate in Nagasaki (Nagasaki), Japan

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Nagasaki, Japan

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Nagasaki, Japan

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Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year

Average monthly percentage of sunshine in Nagasaki, Japan

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Average water temperature

The mean water temperature over the year.

Average monthly water temperature in Nagasaki, Japan

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Monthly precipitation

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

Average monthly rainfall, snow, precipitation in Nagasaki, Japan

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Nagasaki, Japan

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Nagasaki, Japan

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Average wind speed

The mean monthly wind speed over the year (in meters per second)

Average monthly wind speed in Nagasaki, Japan

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Weather Forecasts for Nagasaki

Sun   Feb 25
15°C | 7°C
N 14 km/h
4.2 mm
partly cloudy and slight rain

partly cloudy and slight rain

Mon   Feb 26
13°C | 6°C
N 18 km/h
partly cloudy and no rain

partly cloudy and no rain

Tue   Feb 27
12°C | 5°C
NE 18 km/h
almost clear and no rain

almost clear and no 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.