Irkutsk weather in August 2025

Expect 21°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Irkutsk in August. Check more long-term weather averages for Irkutsk in August before you book your next holiday to Russia (Central Asia) in 2025/2026.

  • 21°C maximum daytime temperature in August in Irkutsk21
    21°C max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in August in Irkutsk14
    14 days with some rainfall
  • 9°C minimum night-time temperature in August in Irkutsk9
    9°C min night temperature
  • 15 hours of daylight per day in August in Irkutsk15
    15 hours of daylight per day
  • No heat & humidity in August in Irkutsk0
    No heat & humidity
  • 90 mm monthly rainfall in August in Irkutsk90
    90 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in Irkutsk6
    6 (High) UV index

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The August weather guide for Russia (Central Asia) (Irkutsk) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Irkutsk in August?

Daytime temperatures usually reach 21°C in Irkutsk in August, falling to 9°C at night.

How sunny is it in Irkutsk in August?

There are normally 7 hours of bright sunshine each day in Irkutsk in August - that's 49% of daylight hours.

Does it rain in Irkutsk in August?

There are usually 14 days with some rain in Irkutsk in August and the average monthly rainfall is 90mm.

Irkutsk August sunrise & sunset times

Browse the sunrise and sunset times for Irkutsk in August 2025. Select a month to view Irkutsk sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:23 20:54
Saturday, 16th August 2025 05:48 20:26
Sunday, 31st August 2025 06:12 19:53

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