Best year time to visit Iwama

General weather information about Iwama

Average annual temperature is 15.8 °C

Absolute maximum temperature: 37.2 °C

Absolute minimum temperature: -6.5 °C

Number of sunny days: 140 days

Number of rainy days: 222 days

Number of snow days: 3 days

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

Iwama air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)13.816.523.327.231.831.937.235.834.426.224.318.6
Average daytime temperature (°C)8.410.316.219.722.526.231.932.829.421.617.312.4
Average temperature (°C)3.34.911.014.217.121.626.727.825.116.812.47.3
Average night temperature (°C)-0.40.76.89.612.718.022.624.222.013.28.63.5
Absolute minimum temperature (°C)-6.5-4.20.93.16.512.519.223.016.38.83.1-2.7

Iwama monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.09.0
Daylight mean duration (h)10.010.912.013.114.114.614.413.512.411.310.39.7
Daylight minimum duration (h)9.010.011.012.013.014.014.012.011.010.09.09.0
Sunshine mean duration (h)7.37.77.98.89.17.410.211.08.48.17.27.3
Precipitation (mm)28381189815634465852541285735
Sunny days18161315125842131519
Rainy days111118151925232728181512
Snow days210000000000

Iwama - weather forecast by months

Iwama weather in januaryIwama weather in februaryIwama weather in marchIwama weather in aprilIwama weather in mayIwama weather in juneIwama weather in julyIwama weather in augustIwama weather in septemberIwama weather in octoberIwama weather in novemberIwama weather in december

Best time to visit Iwama:

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

  • August — 11.0(h)

The largest precipitation sum in Iwama is at

  • May — 156(mm)
  • June — 344(mm)
  • September — 254(mm)

    • Weather forecast in the closest to Iwama admin centers

    Weather forecast in the closest towns to Iwama

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    Frequently asked questions

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