Best year time to visit Iwaishima

General weather information about Iwaishima

Average annual temperature is 17.3 °C

Absolute maximum temperature: 29.7 °C

Absolute minimum temperature: -1.0 °C

Number of sunny days: 175 days

Number of rainy days: 189 days

Number of snow days: 1 day

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

Iwaishima air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)16.113.615.717.820.425.028.029.728.925.523.319.7
Average daytime temperature (°C)10.210.313.015.618.521.825.827.826.922.218.013.1
Average temperature (°C)8.68.611.514.217.320.725.026.825.820.416.311.5
Average night temperature (°C)6.86.59.712.616.119.824.125.924.718.914.19.7
Absolute minimum temperature (°C)-1.02.95.710.413.317.520.823.622.815.56.83.4

Iwaishima monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.211.012.013.013.914.414.113.412.411.310.410.0
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)7.47.28.88.39.17.59.310.59.68.68.26.9
Precipitation (mm)87611172252412811687768247891
Sunny days12141919161315131320147
Rainy days191412111517161817111623
Snow days000000000001

Iwaishima - weather forecast by months

Iwaishima weather in januaryIwaishima weather in februaryIwaishima weather in marchIwaishima weather in aprilIwaishima weather in mayIwaishima weather in juneIwaishima weather in julyIwaishima weather in augustIwaishima weather in septemberIwaishima weather in octoberIwaishima weather in novemberIwaishima weather in december

Best time to visit Iwaishima:

The largest precipitation sum in Iwaishima is at

  • April — 225(mm)
  • May — 241(mm)
  • June — 281(mm)
  • July — 168(mm)

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    Frequently asked questions

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