Best year time to visit Irisa

General weather information about Irisa

Average annual temperature is 14.6 °C

Absolute maximum temperature: 33.0 °C

Absolute minimum temperature: -8.3 °C

Number of sunny days: 127 days

Number of rainy days: 234 days

Number of snow days: 4 days

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

Irisa air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.216.821.524.627.329.033.032.431.826.023.718.9
Average daytime temperature (°C)7.510.615.518.522.424.828.629.727.820.415.29.8
Average temperature (°C)3.35.710.213.117.320.624.425.123.215.410.65.7
Average night temperature (°C)-0.21.85.78.713.117.221.522.119.911.46.92.4
Absolute minimum temperature (°C)-8.3-3.6-2.52.77.112.018.720.517.17.0-0.2-4.4

Irisa 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)10.311.012.013.013.814.314.113.312.411.410.510.0
Daylight minimum duration (h)10.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)6.06.77.77.58.76.18.89.39.48.77.56.0
Precipitation (mm)106136164255269363267268685991113
Sunny days11141717136114171511
Rainy days181414131824303026141518
Snow days200000000002

Irisa - weather forecast by months

Irisa weather in januaryIrisa weather in februaryIrisa weather in marchIrisa weather in aprilIrisa weather in mayIrisa weather in juneIrisa weather in julyIrisa weather in augustIrisa weather in septemberIrisa weather in octoberIrisa weather in novemberIrisa weather in december

Best time to visit Irisa:

The largest precipitation sum in Irisa is at

  • April — 255(mm)
  • May — 269(mm)
  • June — 363(mm)
  • July — 267(mm)
  • August — 268(mm)

    • Weather forecast in the closest to Irisa admin centers

    Weather forecast in the closest towns to Irisa

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    Frequently asked questions

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