Irkutsk weather by month & the best time to visit
🇷🇺 Russia · city break · continental climate
The best time to visit Irkutsk is June — its sunniest month (Sunshine Score 83/100), with July and August close behind. Irkutsk averages about 2,466 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 57 mm of rain in June.
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- Sun hours / year
- 2,466
- Sunniest month
- June
- Peak score
- 83/100
- Rain / year
- 419 mm
- Snow / year
- ≈90 cm
- Midday UV at peak
- 5 (moderate)
- Population
- 624k
- Elevation
- 498 m
When is the best time to visit Irkutsk?
For sunshine, the best time to visit Irkutsk is June, then July and August. The dullest month is January (0/100, 11 mm of rain). The full month-by-month picture is in the table below.
How sunny is Irkutsk?
Irkutsk gets a moderate 2,466 hours of sunshine a year. 83 Sunshine Score points separate June (83) from January (0), so the month you pick matters. It ranks #8 of 145 destinations in Russia for annual sunshine, above the national median of 2,004 hours. Rain has a clear season: the wettest stretch, around July, carries about 53% of the annual 419 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -17° / 1°F | -25° / -13°F | 11 mm | 0 |
| February | 0 | -12° / 10°F | -23° / -9°F | 9 mm | 1 |
| March | 0 | -2° / 28°F | -13° / 9°F | 13 mm | 2 |
| April | 7 | 9° / 48°F | -3° / 27°F | 22 mm | 3 |
| May | 64 | 17° / 63°F | 3° / 37°F | 41 mm | 4 |
| June | 83 | 24° / 75°F | 12° / 54°F | 57 mm | 5 |
| July | 78 | 27° / 81°F | 15° / 59°F | 85 mm | 5 |
| August | 78 | 23° / 73°F | 12° / 54°F | 82 mm | 4 |
| September | 56 | 16° / 61°F | 4° / 39°F | 47 mm | 3 |
| October | 0 | 6° / 43°F | -4° / 25°F | 21 mm | 1 |
| November | 0 | -5° / 23°F | -13° / 9°F | 15 mm | 1 |
| December | 0 | -14° / 7°F | -22° / -8°F | 16 mm | 0 |
See Irkutsk on the interactive sunshine globe →
Nearby places for sunshine
- Ulan Ude Russia · 214 km · best in Jun · 2,485 h sun/yr
- Ulaanbaatar (Sergelen) Mongolia · 542 km · best in Jun · 3,261 h sun/yr
- Chita Russia · 608 km · best in Jun · 2,733 h sun/yr
- Abakan Russia · 885 km · best in Aug · 2,235 h sun/yr
- Krasnoyarsk Russia · 886 km · best in Aug · 1,955 h sun/yr
- Hailar China · 1,135 km · best in Jun · 3,019 h sun/yr
Nearest destinations
- Bulgan Mongolia · 385 km · 3,101 h sun/yr · best in Jun
- Mörön Mongolia · 417 km · 3,015 h sun/yr · best in Jun
- Bratsk Russia · 488 km · 2,075 h sun/yr · best in Jul
- Ust-Kut Russia · 518 km · 2,034 h sun/yr · best in Jun
- Nizhneangarsk Russia · 519 km · 2,041 h sun/yr · best in Aug
Head-to-head
How Irkutsk compares month by month: Irkutsk vs Ulaanbaatar (Sergelen) · Irkutsk vs Ulan Ude · Irkutsk vs Chita · all comparisons
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