If you're looking for summer vibes, the best time to travel to Langley is in July, August and June, when the average temperature reaches 20.13 °C, while July, August and June are the 3 sunniest months of the year, with an average of 81.95 hours.
However, if you prefer colder temperatures, make sure you visit Langley during January, December or February to experience an average of 2.22 °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 April, May and June, when the average precipitation in Langley is 8.25 mm, while the months of January, February and March are drier, with an average of 0 mm.