If you're looking for summer vibes, the best time to travel to Barnaul is in June, July and August, when the average temperature reaches 17.39 °C, while March, April and May are the 3 sunniest months of the year, with an average of 139.71 hours.
However, if you prefer colder temperatures, make sure you visit Barnaul during January, February or December to experience an average of -10.95 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during January, February and September, when the average precipitation in Barnaul is 2.2 mm, while the months of January, February and March are drier, with an average of 0 mm.