Irkutsk weather in September 2025

Expect 59°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Irkutsk in September. Check more long-term weather averages for Irkutsk in September before you book your next holiday to Russia (Central Asia) in 2025/2026.

  • 59°F maximum daytime temperature in September in Irkutsk59
    59°F max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in September in Irkutsk11
    11 days with some rainfall
  • 37°F minimum night-time temperature in September in Irkutsk37
    37°F min night temperature
  • 13 hours of daylight per day in September in Irkutsk13
    13 hours of daylight per day
  • No heat & humidity in September in Irkutsk0
    No heat & humidity
  • 2.2 inches monthly rainfall in September in Irkutsk2.2
    2.2 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Irkutsk3
    3 (Moderate) UV index

More about Irkutsk

Irkutsk by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Russia (Central Asia)

  • Compare car hire with popular rental companies
  • Book with no credit card fees & free cancellation policy
  • Find low prices based on destination & travel dates

The September 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)  |  Imperial (°F)

Back to top

How warm is it in Irkutsk in September?

Daytime temperatures usually reach 59°F in Irkutsk in September, falling to 37°F at night.

How sunny is it in Irkutsk in September?

There are normally 6 hours of bright sunshine each day in Irkutsk in September - that's 50% of daylight hours.

Does it rain in Irkutsk in September?

There are usually 11 days with some rain in Irkutsk in September and the average monthly rainfall is 2.2 inches.

Irkutsk September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:14 19:51
Monday, 15th September 2025 06:37 19:18
Tuesday, 30th September 2025 07:02 18:43

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^