Best year time to visit Iwai

General weather information about Iwai

Average annual temperature is 15.1 °C

Absolute maximum temperature: 36.2 °C

Absolute minimum temperature: -4.8 °C

Number of sunny days: 104 days

Number of rainy days: 251 days

Number of snow days: 10 days

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

Iwai air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.014.421.423.326.030.533.536.231.923.924.819.8
Average daytime temperature (°C)6.47.213.916.520.825.229.731.727.319.815.610.2
Average temperature (°C)3.64.19.512.816.921.426.027.723.816.011.76.7
Average night temperature (°C)1.21.35.49.213.418.222.824.321.212.88.33.9
Absolute minimum temperature (°C)-4.8-4.2-0.62.86.012.818.921.716.67.61.7-1.5

Iwai 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)5.45.68.27.89.27.99.310.18.18.66.86.0
Precipitation (mm)274147136261228201175247139110185209
Sunny days5517141589231385
Rainy days231814161622222927182224
Snow days350000000002

Iwai - weather forecast by months

Iwai weather in januaryIwai weather in februaryIwai weather in marchIwai weather in aprilIwai weather in mayIwai weather in juneIwai weather in julyIwai weather in augustIwai weather in septemberIwai weather in octoberIwai weather in novemberIwai weather in december

Best time to visit Iwai:

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

  • August — 10.1(h)

The largest precipitation sum in Iwai is at

  • January — 274(mm)
  • April — 261(mm)
  • August — 247(mm)

    • Weather forecast in the closest to Iwai admin centers

    Weather forecast in the closest towns to Iwai

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    Frequently asked questions

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