Ideal weather days in Irkutsk
The best time to visit Irkutsk for warm, dry weather is June, July and August, with 19 to 22 such days a month.
How many days here suit you?
Set your ideal day. Each day measured at Irkutsk's weather station in 2023–2025 is checked against it.
They're most common in June, July and August.
This station doesn't record cloud cover, so the sky setting is left out here.
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Your ideal days in Irkutsk, month by month
Why the other days don't count
- Too cold241
- Too wet73
- Too windy17
- Too hot1
A day can fail more than one test.
Warm and dry, beach and mild days
With the Warm & dry preset (a high of 18–33 °C, no more than 1 mm of rain, wind under 20 km/h), Irkutsk averaged 94 days a year in 2023–2025. Every number here is counted from real measured days in Russia, not from climate averages.
Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in July (up to 13 a month, 36 a year). Mild, still days (16–26 °C, light wind) are most common in September (up to 13 a month, 52 a year).
What spoils the other days
Most of the days that don't count are too cold (a high under 18 °C): 241 a year, mostly in October to April. Another 73 are wet (more than 1 mm of rain), mostly in April to September. A day can fail more than one test.
Irkutsk weather, month by month
| Month | Typical high | Rain days | Windy days | Clear days | Warm & dry days |
|---|---|---|---|---|---|
| January | -9 °C 15 °F | 6 | 1 | 14 | 0 of 31 |
| February | -8 °C 18 °F | 3 | 0 | 15 | 0 of 28 |
| March | 2 °C 36 °F | 4 | 3 | 13 | 1 of 31 |
| April | 10 °C 50 °F | 8 | 5 | 11 | 3 of 30 |
| May | 19 °C 65 °F | 8 | 2 | 7 | 14 of 31 |
| June | 25 °C 76 °F | 11 | 0 | 9 | 19 of 30 |
| July | 27 °C 81 °F | 13 | 1 | 7 | 20 of 31 |
| August | 25 °C 77 °F | 11 | 0 | 10 | 22 of 31 |
| September | 18 °C 64 °F | 10 | 0 | 7 | 11 of 30 |
| October | 11 °C 51 °F | 6 | 2 | 13 | 3 of 31 |
| November | -1 °C 29 °F | 6 | 2 | 6 | 0 of 30 |
| December | -10 °C 14 °F | 9 | 1 | 12 | 0 of 31 |
| Year | 94 | 17 | 124 | 94 of 365 |
Typical high is the median daily maximum. A rain day has 1 mm or more; a windy day a mean wind above 20 km/h; a clear day a daytime cloud cover of 2/8 or less on average (9:00–17:00). Days are averaged over 2023–2025 and scaled to the length of each month.
Year by year
- 2023 93 warm, dry days
- 2024 94 warm, dry days
- 2025 incomplete (8 of 12 months)
Questions
When is the best time to visit Irkutsk for good weather?
The best time to visit Irkutsk for warm, dry weather is June, July and August, with 19 to 22 such days a month. Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are most common in July (up to 13 a month, 36 a year). Counted from measured days at Irkutsk station, 2023–2025.
Does it rain a lot in Irkutsk?
On average 94 days a year had 1 mm of rain or more in 2023–2025. The wettest month was July (13 rain days), the driest February (3).
How many sunny days does Irkutsk get a year?
About 124 days a year had mostly clear skies (daytime cloud cover of 2/8 or less on average, 9:00–17:00), most of them in February (15).
How warm does Irkutsk get?
The median daily high ranged from -10 °C (14 °F) in December to 27 °C (81 °F) in July.
Nearby
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- Harbin1780 km, China119 days
- Shenyang1860 km, China142 days
- Omsk2060 km88 days
- Norilsk2090 km40 days
More cities in Russia
Where is the best climate in Russia?
Open Irkutsk on the map Set your own temperature, rain and wind limits.
Source: Irkutsk weather station (30710099999), 8 km from the centre of Irkutsk, 511 m above sea level. Daily records from NOAA's Global Surface Summary of the Day, 2023–2025; 87% of days have a complete record. A single station may not represent every part of a city, and three years is a short record.