Best year time to visit Irkutsk

General weather information about Irkutsk

Average annual temperature is 1.1 °C

Absolute maximum temperature: 31.3 °C

Absolute minimum temperature: -42.3 °C

Number of sunny days: 195 days

Number of rainy days: 107 days

Number of snow days: 63 days

Look at detailed online map of Irkutsk

* Weather data for Irkutsk Russia is based on climate observations for 2026 year

Irkutsk air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)-4.3-2.313.519.222.830.731.328.126.719.64.30.5
Average daytime temperature (°C)-16.1-9.70.76.114.623.024.623.117.210.7-4.9-15.4
Average temperature (°C)-20.0-14.4-5.10.08.016.719.218.012.15.4-8.4-18.8
Average night temperature (°C)-24.8-18.8-11.3-5.81.610.514.013.57.70.9-12.6-23.2
Absolute minimum temperature (°C)-42.3-24.9-20.1-13.8-4.54.210.38.82.4-7.0-23.8-37.8

Irkutsk monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.016.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.39.911.913.915.716.716.214.612.710.68.87.8
Daylight minimum duration (h)7.09.010.012.014.016.015.013.011.09.08.07.0
Sunshine mean duration (h)5.47.18.910.010.311.010.610.18.77.95.54.3
Precipitation (mm)89155640881189480171211
Sunny days211518171413131315191819
Rainy days204617171818151000
Snow days813970000021212

Irkutsk - weather forecast by months

Irkutsk weather in januaryIrkutsk weather in februaryIrkutsk weather in marchIrkutsk weather in aprilIrkutsk weather in mayIrkutsk weather in juneIrkutsk weather in julyIrkutsk weather in augustIrkutsk weather in septemberIrkutsk weather in octoberIrkutsk weather in novemberIrkutsk weather in december

Best time to visit Irkutsk:

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

  • June — 11.0(h)
  • July — 10.6(h)

Months with the longest average daylight duration in Irkutsk:

  • May — 15.7(h)
  • June — 16.7(h)
  • July — 16.2(h)

The largest precipitation sum in Irkutsk is at

  • June — 88(mm)
  • July — 118(mm)
  • August — 94(mm)
  • September — 80(mm)

    • Weather forecast in the closest to Irkutsk admin centers

    Weather forecast in the closest towns to Irkutsk

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    Frequently asked questions

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