The weather in St. John’s, Newfoundland is always pleasant and travelling to the city is possible throughout the year. However, summers tend to be more habitable with the climate being warm along with the minimum annual rainfall. The winters tend to be very cold with a significant drop in the temperature, sometimes even below zero degree Celsius.
To conclude, the best time ti visit depends on the purpose of your trip. Spring and summer seasons are best for sightseeing and trekking, fall for camping and winters for winter sports.
On an average, the best time to visit would be the summers, as the weather is pleasant, with less rainfall and there are various activities hosted by the town one can indulge into and many summer music festivals and cultural events one can take part in.