If you're looking for summer vibes, the best time to travel to Castlegar is in July, August and June, when the average temperature reaches 19.39 °C, while July, August and June are the 3 sunniest months of the year, with an average of 63.14 hours.
However, if you prefer colder temperatures, make sure you visit Castlegar during January, December or February to experience an average of -7.13 °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, July and August, when the average precipitation in Castlegar is 3.23 mm, while the months of January, February and March are drier, with an average of 0 mm.