Best year time to visit Iwanuma

General weather information about Iwanuma

Average annual temperature is 17.2 °C

Absolute maximum temperature: 34.6 °C

Absolute minimum temperature: -3.4 °C

Number of sunny days: 146 days

Number of rainy days: 218 days

Number of snow days: 1 day

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

Iwanuma air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.719.524.123.928.631.234.634.632.231.925.623.3
Average daytime temperature (°C)9.811.316.019.321.125.130.230.929.122.519.113.9
Average temperature (°C)5.97.712.615.818.122.126.627.626.018.715.29.9
Average night temperature (°C)2.54.29.613.015.519.723.725.223.915.212.16.2
Absolute minimum temperature (°C)-3.4-0.82.46.911.116.320.921.320.011.76.40.2

Iwanuma 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)10.110.912.013.114.014.514.313.512.411.310.39.8
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.09.09.0
Sunshine mean duration (h)6.56.67.48.98.57.010.911.68.88.77.27.4
Precipitation (mm)568814115113726345841901397744
Sunny days181310121281833131719
Rainy days131421181922132827181312
Snow days010000000000

Iwanuma - weather forecast by months

Iwanuma weather in januaryIwanuma weather in februaryIwanuma weather in marchIwanuma weather in aprilIwanuma weather in mayIwanuma weather in juneIwanuma weather in julyIwanuma weather in augustIwanuma weather in septemberIwanuma weather in octoberIwanuma weather in novemberIwanuma weather in december

Best time to visit Iwanuma:

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

  • July — 10.9(h)
  • August — 11.6(h)

The largest precipitation sum in Iwanuma is at

  • April — 151(mm)
  • June — 263(mm)
  • September — 190(mm)

    • Weather forecast in the closest to Iwanuma admin centers

    Weather forecast in the closest towns to Iwanuma

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    Frequently asked questions

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