Best year time to visit Itoizawa

General weather information about Itoizawa

Average annual temperature is 8.2 °C

Absolute maximum temperature: 34.0 °C

Absolute minimum temperature: -21.6 °C

Number of sunny days: 160 days

Number of rainy days: 171 days

Number of snow days: 34 days

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

Itoizawa air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)5.26.213.416.222.324.934.031.427.722.817.111.0
Average daytime temperature (°C)-2.8-1.86.711.015.919.024.926.023.415.99.91.5
Average temperature (°C)-8.4-6.61.76.710.615.320.422.619.712.06.3-2.7
Average night temperature (°C)-13.6-12.2-3.02.96.812.617.220.117.08.52.9-6.4
Absolute minimum temperature (°C)-20.6-21.6-14.6-5.50.87.312.314.511.83.2-6.3-12.5

Itoizawa monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.715.315.013.912.511.09.79.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)7.47.58.18.29.86.78.97.47.27.66.46.1
Precipitation (mm)2441911765792691061791007647
Sunny days2013188111016612141616
Rainy days111122202015251817147
Snow days10142000000008

Itoizawa - weather forecast by months

Itoizawa weather in januaryItoizawa weather in februaryItoizawa weather in marchItoizawa weather in aprilItoizawa weather in mayItoizawa weather in juneItoizawa weather in julyItoizawa weather in augustItoizawa weather in septemberItoizawa weather in octoberItoizawa weather in novemberItoizawa weather in december

Best time to visit Itoizawa:

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

  • May — 9.8(h)

Months with the longest average daylight duration in Itoizawa:

  • June — 15.3(h)

The largest precipitation sum in Itoizawa is at

  • April — 176(mm)
  • September — 179(mm)

    • Weather forecast in the closest to Itoizawa admin centers

    Weather forecast in the closest towns to Itoizawa

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    Frequently asked questions

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