If you're looking for summer vibes, the best time to travel to St Johns is in June, July and August, when the average temperature reaches 24.83 °C, while June, May and April are the 3 sunniest months of the year, with an average of 204.62 hours.
However, if you prefer colder temperatures, make sure you visit St Johns during January, December or February to experience an average of -3.78 °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, January and February, when the average precipitation in St Johns is 2.82 mm, while the months of January, February and March are drier, with an average of 0 mm.