Irkutsk Weather in May 2026: what to expect (7.3/10)

The month in detail

What to expect in May

Spring marks the start of the good season in Irkutsk. Temperatures rise (16.0°C) and tourists have not yet arrived en masse. Expect rain on 28.0% of days — a light raincoat in the bag is recommended. Not the best window, but acceptable if dates are constrained. June (8.1/10) is significantly better if possible.

May ranks 4 out of 12 months in Irkutsk. Compared to April: +6°C daytime, 8 pts more rainy days, +0.6h of sun per day.

This month's conditions

What it's like in May

Feels like

dry air

-0°

Daylight

15.5h of daylight

Compare

Is May the right month?

The best month in Irkutsk is June (8.1/10), 0.8 pt higher than May.

See June →See all 12 months →

Context

Our verdict

Irkutsk, Siberian town on the Angara river 70 km from Lake Baikal : 620,000 inhabitants 5000 km east of Moscow. Nicknamed the "Paris of Siberia" in the 19th century (preserved characteristic carved wood architecture, theatres).

Read Gilles' full review →

Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

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Stay

Hotels & rentals · Irkutsk

Expedia →

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Activities

Tours, tickets, experiences

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Flights

Multi-airline comparator

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🎟️ Activities & tours · Irkutsk

GetYourGuide selection · free cancellation

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Affiliate link · GetYourGuide

Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a city break.

Country · Russia

🗣️LanguageRussian

💶CurrencyRouble russe (₽)

🚗DrivingRight-hand

🛡️Safety ⓘAt risk · 4/5

💰Cost of living ⓘCheap · 2/5

🌡️ Climate

🌍Climate typeTemperate

📈Climate trend ⓘStable

🔥Hottest monthJuly · 25°C

❄️Coolest monthJanuary · -14°C

🌧️Rainiest month ⓘJuly · 40%

🏛️ City break

📅Tourist peak seasonJune → August

☔Indoor sights ⓘYear-round

🚇Public transportGood

Explore

Other destinations in May

If May doesn't convince you for this destination, compare with others.

Similar climate

Nearby

NovosibirskRussia1435 km

Other top picks

Hawaii / MauiUnited States7.8

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Location

Where is Irkutsk ?

Global position + regional geographic context.

🌍 World

🔍 Geographic context

Russia

Temperate climate with a 8.1 → 1.1 gap between best and worst month. 10 years of ERA5 data to choose by project.

52.29°N · 104.30°E

Questions

Frequently asked questions

What is the best time to visit Irkutsk?

June is the best month with 23.0°C highs, 11.0°C lows, 9.2h of sunshine and 33.0% rainy days. The months of June & July offer comparable conditions.

How many hours of sunshine does Irkutsk get in June?

Irkutsk averages 9.2 sunshine hours per day in June. It is the sunniest month with a climate score of 7.6/10.

What is the rainiest month in Irkutsk?

December is the most unfavourable month with December has the lowest climate score of the year and the lowest climate score of the year.

What are the temperatures at night in Irkutsk in June?

In June, overnight lows reach 11.0°C, while afternoon highs average 23.0°C.

Is Irkutsk good in winter?

In winter (December-February), Irkutsk scores 3.0/10 on average — Difficult period — prefer the peak season.. The best month overall remains June with a score of 7.6/10.

When should you avoid Irkutsk?

December is the most difficult month to visit Irkutsk, with December has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.