St. Johns, where it's located

The climate of St. John's is moderately continental, characterized by cold winters, with temperatures often below freezing (0 °C or 32 °F), and mild summers.
The city is located on the east coast of the island of Newfoundland, on the Avalon peninsula, and is the capital of the province of Newfoundland and Labrador. We are in the easternmost part of Canada, where the clash between sea and air currents (the Gulf Stream and the mild currents from the south-west on one side, the Labrador current and the cold currents from the north on the other) gives rise to frequent rains (and snowfalls in winter) but also to frequent fogs. In fact, St. John's is the foggiest city in Canada. Between fog, rain and snow, there can still be wintery days in spring, especially in April, but also in May, and sometimes even in June.
In addition, the clash between air masses makes the city windy.
From August to October, the island of Newfoundland can occasionally be hit by hurricanes of the Atlantic, which, after affecting the Caribbean, turn north-east. They generally arrive weakened because they have to cross a cold sea, however they can still bring abundant rains and strong winds.
On the coldest days of the year, the temperature can drop to -15 °C (5 °F) or even below. In February 1994, it dropped to -22.5 °C (8.5 °F). On the warmest days of the year, it can reach 27/28 °C (81/82 °F), or even higher.
The average temperature of the coldest month (February) is of -4.9 °C (23 °F), that of the warmest month (August) is of 16.1 °C (61 °F). Here are the average temperatures.
St. Johns - Average temperatures
Min (°C)-8-9-6-2261112840-5
Max (°C)-1-11611162120161162
Min (°F)181621283643525446393223
Max (°F)303034435261706861524336

Precipitation amounts to 1,535 millimeters (60.4 inches) per year: it is therefore abundant. It ranges from 90 mm (3.5 in) in the driest month (July) to 165 mm (6.5 in) in the wettest (December). On average, 335 cm (11 feet) of snow fall per year, from November to April (but sometimes it can snow even in May and October). Here is the average precipitation.
St. Johns - Average precipitation

On average, there are around 1,635 sunshine hours per year. Here are the average sunshine hours per day.
St. Johns - Sunshine

The sea temperature ranges between 0 °C (32 °F) and 14 °C (57 °F). So, it is cold all year round.
From March to May, the Labrador current pushes icebergs off the north and east coast of the island of Newfoundland. Some of them run aground given the shallow seabed (we are in the area of the Great Banks of Newfoundland) and remain stationary for a few months. In general, to see them you need to embark, but sometimes they pass so close and are so large that they can also be seen from the coast. Here are the average sea temperatures.
St. Johns - Sea temperature
Temp (°C)100136111413963
Temp (°F)343232343743525755484337

St. Johns

Best Time

The best months to visit St. John's are July and August, as they are the mildest of the year.