Irkutsk

What is the climate like in Irkutsk?

The best time to visit Irkutsk is typically May – June, with trip comfort peaking in June (7.2/10). Irkutsk is warmest in July, when daily highs average 75°F (24°C), and coolest in January, when lows fall to about -11°F (-24°C). The wettest month is typically August and the driest is February; the year sees roughly 19 in (475 mm) of precipitation.

• Best time to visitMay – June — comfort peaks in June (7.2/10)
• Warmest monthJuly — average high 75°F (24°C)
• Coolest monthJanuary — average low -11°F (-24°C)
• Wettest monthAugust (4.1 in (104 mm))
• Driest monthFebruary (0.4 in (11 mm))
• Annual precipitation19 in (475 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromIrkutsk, 5 km away (1887-2025)