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Irkutsk
Church of Our Lady of the Assumption, Irkutsk
Church of Our Lady of the Assumption, Irkutsk
Cathedral of the Theotokos of Kazan
Cathedral of the Theotokos of Kazan
Irkutsk academic drama theatre N. P. Okhlopkov
Irkutsk academic drama theatre N. P. Okhlopkov
White House, Irkutsk
White House, Irkutsk
Irkutsk Oblast, Russia

Irkutsk

Irkutsk is a city in Irkutsk Oblast, Russia, 415 m above sea level. It has a population of about 605,708 (2025). The climate is classified as monsoon-influenced warm-summer continental (Köppen Dwb), with dry, cold winters and wet summers.

Now0°C
Best timeMay–Jun · Aug
Population605,708
Local time22:26
52.30° N, 104.29° EElevation 415 mUTC+8 · Irkutsk Standard Time
Postal codes664000–664003, 664005–664007 …
The year in Irkutskweather score
JanFebMarAprMayJunJulAugSepOctNovDec40October
October: high / low7° / -1°
Rain this month20mm
Best timeMay–Jun · Aug

Best: May–Jun · Aug. Warmth, sunshine and dry days, month by month.

Irkutsk at a glance

Best time to visitMay–Jun · Aug

The months with the highest weather score

Warmest month24°C

Average high in July

Coolest month-24°C

Average low in January

Wettest monthJuly

106 mm of rain

Driest monthFebruary

8 mm of rain

Monuments nearby10+

within 2.4 km

How Irkutsk has grown

People living in the built-up area (100 km² today), every five years since 1975; 2030 is the projection.

-7%467k in 1975 → 435k in 2025
75
80
85
90
95
00
05
10
15
20
25
30

Weather in Irkutsk

Now and the next ten days. The 14 and 30-day outlooks are one click away.

14-day forecast
0°C

Cloudy · wind 15 km/h · humidity 87%

Today hour by hour
Today22 Oct1°-2°3.5 mm
Fri23 Oct4°-3°0.6 mm
Sat24 Oct0°-3°
Sun25 Oct1°-8°
Mon26 Oct-3°-6°0.6 mm
Tue27 Oct1°-5°1.4 mm
Wed28 Oct4°-1°1.5 mm
Thu29 Oct-4°-11°0.5 mm
Fri30 Oct-8°-15°
Sat31 Oct-1°-5°1 mm

When to go to Irkutsk

Each month's weather score (warmth, sun, dry days) with its temperatures and rain.

Climate month by month
JanFebMarAprMayJunJulAugSepOctNovDec
Score474944396665626557404141
High-14°-8°0°8°17°22°24°21°15°7°-3°-11°
Low-24°-21°-13°-3°4°10°14°12°6°-1°-11°-20°
Rain (mm)128111734721068648201814
Wet days32461012141310655

What's on in Irkutsk

Concerts, football matches, the public holidays ahead and the town's festivals through the year.

Monuments and museums in Irkutsk

All monuments

More museums: Geologial Museum · Городской Выставочный Центр им. В.С.Рогаля · Irkutsk Regional Historical and Memorial Museum of the Decembrist Trubetskoi's Manor · Иркутск - Окно в Азию · Иркутский областной художественный музей им. В. П. Сукачёва · Музей · Музей "На свалке" · Музей В.Г. Распутина · Музей Мусора · Museum of Urban Life · Museum of the history of the city of Irkutsk · Museum of Vintage motorcycles and Antiques of USSR

Outdoors around Irkutsk

Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.

Things to do
Главная обзорная площадка ИркутскаViewpoints
0.8 km
вид на церковь Казанской БогоматериViewpoints
1.6 km
Любо-ГородTheme parks
2.4 km
НерпинарийZoos
3.3 km
Контактный детский зоопаркZoos
4.7 km
Спорт-парк "Поляна"Theme parks
5.1 km

Nature around Irkutsk

Nature in Russia

Wildlife in October

The birds and mammals of Russia seen most this month, compared with the rest of their year.

The sky over Irkutsk

Eclipses and meteor showers

Earthquakes around Irkutsk

The last 30 days within 300 km, and the record since 1950.

Earthquakes

Strongest nearby since 1950

6.3Baykalsk 10 km ↑2008 · 77 km
5.9Tankhoy 19 km ←1999 · 86 km
5.8Tunka 46 km ↗1995 · 89 km
5.7Tvorogovo 36 km ←1970 · 115 km

Universities and research institutes

Irkutsk State UniversityUniversity or college · founded 1918
Irkutsk State Medical UniversityUniversity or college · founded 1919
Baikal State UniversityUniversity or college · founded 1930
Irkutsk National Research Technical UniversityUniversity or college · founded 1930
Military InstituteUniversity or college · founded 1931
Irkutsk State Agrarian University named after A.A. EzhevskyUniversity or college · founded 1934
East-Siberian Institute of the Ministry of Internal Affairs of the Russian FederationUniversity or college · founded 1962
Irkutsk State Transport UniversityUniversity or college · founded 1975
East Siberian University of Economics and LawUniversity or college · founded 1993
Siberian Academy of Law, Economics and ManagementUniversity or college · founded 1994
Limnological InstituteResearch institute · founded 1928
Irkutsk Antiplague Research Institute of Siberia and Far EastResearch institute · founded 1934
УрангеологоразведкаResearch institute · founded 1945
Institute of the Earth’s CrustResearch institute · founded 1949
A.E. Favorsky Irkutsk Institute of ChemistryResearch institute · founded 1957
V. B. Sochava Institute of GeographyResearch institute · founded 1957
Vinogradov Institute of GeochemistryResearch institute · founded 1957
Irkutsk Research Institute of the Forestry IndustryResearch institute · founded 1959
Siberian Research, Design and Design Institute of Aluminum and Electrode IndustryResearch institute · founded 1959
Institute of Solar-Terrestrial PhysicsResearch institute · founded 1960
Siberian Institute of Plant Physiology and BiochemistryResearch institute · founded 1961
Institute for System Dynamics and Control TheoryResearch institute · founded 1980
Scientific Center of Family Health Problems and Human ReproductionResearch institute · founded 1987
Melentiev Energy Systems InstituteResearch institute · founded 1997
Baikal Research CentreResearch institute · founded 2003

Towns and villages around Irkutsk

Each with its own page: weather, climate and the best time to visit.

Irkutsk from above

Postal codes

664000–664003664005–664007664009664011664013–664014664017664019–664020664022–664025664027664029664031664033664035664037–664040664042–664050664053664055–664059664073–664076664078–664082

Getting to Irkutsk

Irkutsk International AirportIKT
7.8 km
Baikal International AirportUUD
222 km
Иркутск-ПассажирскийRailway station
2.5 km
ЮностьRailway station
3.1 km
РодникиRailway station
3.6 km
Иркутск-БратскFerry port
1.4 km
Пристань Иркутская ФорельFerry port
4.8 km

Places near Irkutsk

Places with a climate like Irkutsk

Matched month by month on temperature, rain and sunshine.

Frequently asked questions

When is the best time to visit Irkutsk?
Based on 30-year climate normals, May, June and August offer the best balance of comfortable temperatures, low rainfall and sunshine in Irkutsk.
What is the hottest month in Irkutsk?
July is the warmest month, with average highs of 24°C and lows of 14°C.
What is the coldest month in Irkutsk?
January is the coldest month, with average highs of -14°C and lows of -24°C.
What is the rainiest month in Irkutsk?
July is the wettest month with about 106 mm of precipitation on 14 wet days.
What is the postal code of Irkutsk?
Irkutsk has 51 postal codes: 664000–664003, 664005–664007, 664009, 664011, 664013–664014, 664017, 664019–664020, 664022–664025, 664027, 664029, 664031, 664033 ….