Weather in Iwamachō in September

General weather information about Iwamachō

Average annual temperature is 16.8 °C

Absolute maximum temperature: 36.7 °C

Absolute minimum temperature: -4.7 °C

Number of sunny days: 174 days

Number of rainy days: 189 days

Number of snow days: 2 days

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

Iwamachō air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)14.918.323.122.728.630.736.735.433.728.925.622.3
Average daytime temperature (°C)9.110.816.119.521.925.732.032.329.722.418.313.4
Average temperature (°C)4.66.412.015.417.922.327.628.426.118.013.68.4
Average night temperature (°C)0.82.77.911.814.419.524.225.423.413.89.64.0
Absolute minimum temperature (°C)-4.7-1.32.25.29.114.921.323.817.49.53.3-1.4

Iwamachō 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)6.97.17.48.68.57.410.711.39.08.77.37.7
Precipitation (mm)2344141129178279451271801205938
Sunny days1716151316111569181622
Rainy days13111617151916252113149
Snow days110000000000

Iwamachō - weather forecast by months

Iwamachō weather in januaryIwamachō weather in februaryIwamachō weather in marchIwamachō weather in aprilIwamachō weather in mayIwamachō weather in juneIwamachō weather in julyIwamachō weather in augustIwamachō weather in septemberIwamachō weather in octoberIwamachō weather in novemberIwamachō weather in december

Best time to visit Iwamachō:

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

  • July — 10.7(h)
  • August — 11.3(h)

The largest precipitation sum in Iwamachō is at

  • May — 178(mm)
  • June — 279(mm)
  • September — 180(mm)

    • Weather forecast in the closest to Iwamachō admin centers

    Weather forecast in the closest towns to Iwamachō

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    Frequently asked questions

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