Best year time to visit Nagasaki Prefecture

General weather information about Nagasaki Prefecture

Average annual temperature is 17.5 °C

Absolute maximum temperature: 36.9 °C

Absolute minimum temperature: -2.9 °C

Number of sunny days: 137 days

Number of rainy days: 225 days

Number of snow days: 3 days

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* Weather data for Nagasaki Prefecture Japan is based on climate observations for 2026 year

Nagasaki Prefecture air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)17.116.423.623.426.728.733.536.931.325.826.921.5
Average daytime temperature (°C)9.911.816.118.422.225.629.931.928.722.617.512.7
Average temperature (°C)7.68.912.515.418.822.726.728.125.519.014.39.8
Average night temperature (°C)5.36.39.712.416.420.324.525.223.116.111.47.1
Absolute minimum temperature (°C)-2.92.31.78.210.017.022.122.519.912.25.31.0

Nagasaki Prefecture monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.211.012.013.013.914.314.113.412.411.410.510.0
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)6.26.47.98.18.47.98.911.09.38.87.35.5
Precipitation (mm)1121331272192642372682161873311289
Sunny days149161611733722218
Rainy days1519151420232828239922
Snow days200000000001

Nagasaki Prefecture - weather forecast by months

Nagasaki Prefecture weather in januaryNagasaki Prefecture weather in februaryNagasaki Prefecture weather in marchNagasaki Prefecture weather in aprilNagasaki Prefecture weather in mayNagasaki Prefecture weather in juneNagasaki Prefecture weather in julyNagasaki Prefecture weather in augustNagasaki Prefecture weather in septemberNagasaki Prefecture weather in octoberNagasaki Prefecture weather in novemberNagasaki Prefecture weather in december

Best time to visit Nagasaki Prefecture:

The best time to visit Nagasaki Prefecture during the most sunny months:

  • August — 11.0(h)

The largest precipitation sum in Nagasaki Prefecture is at

  • April — 219(mm)
  • May — 264(mm)
  • June — 237(mm)
  • July — 268(mm)
  • August — 216(mm)

    • Weather forecast in the closest to Nagasaki Prefecture admin centers

    Weather forecast in the closest towns to Nagasaki Prefecture

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    Frequently asked questions

    When is the best time to visit Nagasaki Prefecture?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Nagasaki Prefecture.
    What is the weather like in Nagasaki Prefecture?
    See average temperature, rainfall and daylight hours for Nagasaki Prefecture by month in the table above.
    How many sunny days does Nagasaki Prefecture have?
    The monthly weather statistics above show sunshine and rainfall patterns for Nagasaki Prefecture throughout the year.