Best year time to visit Unzen

General weather information about Unzen

Average annual temperature is 17.9 °C

Absolute maximum temperature: 35.1 °C

Absolute minimum temperature: -3.8 °C

Number of sunny days: 157 days

Number of rainy days: 206 days

Number of snow days: 2 days

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

Unzen air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)19.518.824.724.829.130.633.335.132.426.825.622.2
Average daytime temperature (°C)9.911.816.920.123.626.630.332.029.722.718.012.7
Average temperature (°C)7.08.612.815.919.723.327.428.626.619.614.810.1
Average night temperature (°C)4.35.79.512.516.620.725.326.224.217.011.97.5
Absolute minimum temperature (°C)-3.82.02.38.411.115.623.024.321.513.46.60.2

Unzen 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)10.311.012.013.013.814.314.113.312.411.410.510.0
Daylight minimum duration (h)10.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)6.66.57.57.88.56.78.210.99.49.38.16.4
Precipitation (mm)100101157236361449187196101495568
Sunny days17121817166469182014
Rainy days131613131524272521131016
Snow days100000000001

Unzen - weather forecast by months

Unzen weather in januaryUnzen weather in februaryUnzen weather in marchUnzen weather in aprilUnzen weather in mayUnzen weather in juneUnzen weather in julyUnzen weather in augustUnzen weather in septemberUnzen weather in octoberUnzen weather in novemberUnzen weather in december

Best time to visit Unzen:

The best time to visit Unzen during the most sunny months:

  • August — 10.9(h)

The largest precipitation sum in Unzen is at

  • April — 236(mm)
  • May — 361(mm)
  • June — 449(mm)

    • Weather forecast in the closest to Unzen admin centers

    Weather forecast in the closest towns to Unzen

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    Frequently asked questions

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