The climate of St. John's is
, 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
(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
, there can still be wintery days in spring, especially in April, but also in May, and sometimes even in June.
of the year, the temperature can drop to -15 °C (5 °F) or even below. The coldest record is -23.8 °C (-10.8 °F) and was set in February 1990 and in March 1986.
fall per year, from November to April (but sometimes it can snow even in May and October).
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.
of the year, it can reach 27/28 °C (81/82 °F), or even higher. The highest record is 31.5 °C (88.7 °F) and was set in July 1983.
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.
The best months to visit St. John's are July and August, as they are the mildest of the year.
. Here are the average temperatures.
January is generally a very cold month. The average temperature is of
-4.2 °C, with a minimum of
-7.8 °C and a maximum of
-0.7 °C.
On the coldest nights of the month, the temperature usually drops to around
-15.5 °C. However, it dropped to
-19.5 °C in January 1993.
On the warmest days of the month, the temperature usually reaches around
9.5 °C. However, it reached
15.7 °C in January 2006.
Precipitation amounts to
153 mm, distributed over 17 days.
The day lasts on average 9 hours and 0 minutes.
There are on average 2 hours of sunshine per day. So, the sun shines 23% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
29 kph.
The average sea temperature is of
1 °C. Therefore, the sea is very cold for swimming.
February, the coldest month of the year, is generally a very cold month. The average temperature is of
-4.7 °C, with a minimum of
-8.4 °C and a maximum of
-1 °C.
On the coldest nights of the month, the temperature usually drops to around
-16 °C. However, it dropped to
-22.4 °C in February 1994.
On the warmest days of the month, the temperature usually reaches around
8 °C. However, it reached
16 °C in February 1996.
Precipitation amounts to
122.8 mm, distributed over 14 days.
The day lasts on average 10 hours and 20 minutes.
There are on average 3 hours of sunshine per day. So, the sun shines 31% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
28 kph.
The average sea temperature is of
0.3 °C. Therefore, the sea is very cold for swimming.
March is generally a very cold month. The average temperature is of
-2.2 °C, with a minimum of
-5.7 °C and a maximum of
1.2 °C.
On the coldest nights of the month, the temperature usually drops to around
-13.5 °C. However, it dropped to
-19.8 °C in March 2003.
On the warmest days of the month, the temperature usually reaches around
10 °C. However, it reached
16.8 °C in March 1999.
Precipitation amounts to
140.1 mm, distributed over 14 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 29% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
27 kph.
The average sea temperature is of
0.3 °C. Therefore, the sea is very cold for swimming.
April is generally a cold month. The average temperature is of
1.8 °C, with a minimum of
-1.9 °C and a maximum of
5.6 °C.
On the coldest nights of the month, the temperature usually drops to around
-7.5 °C. However, it dropped to
-14.1 °C in April 2008.
On the warmest days of the month, the temperature usually reaches around
15 °C. However, it reached
21 °C in April 2018.
Precipitation amounts to
121.6 mm, distributed over 13 days.
The day lasts on average 13 hours and 40 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
25 kph.
The average sea temperature is of
0.9 °C. Therefore, the sea is very cold for swimming.
May is generally a quite cold month. The average temperature is of
6.3 °C, with a minimum of
1.6 °C and a maximum of
11 °C.
On the coldest nights of the month, the temperature usually drops to around
-3 °C. However, it dropped to
-6.7 °C in May 1993.
On the warmest days of the month, the temperature usually reaches around
21 °C. However, it reached
27.6 °C in May 2020.
Precipitation amounts to
98.1 mm, distributed over 12 days.
The day lasts on average 15 hours and 10 minutes. So the days are long.
There are on average 5.5 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
22 kph.
The average sea temperature is of
2.8 °C. Therefore, the sea is very cold for swimming.
June is generally a mild month. The average temperature is of
10.8 °C, with a minimum of
5.9 °C and a maximum of
15.7 °C.
On the coldest nights of the month, the temperature usually drops to around
0 °C. However, it dropped to
-2.3 °C in June 2012.
On the warmest days of the month, the temperature usually reaches around
24.5 °C. However, it reached
27.8 °C in June 1999.
Precipitation amounts to
88.2 mm, distributed over 11 days.
The day lasts on average 15 hours and 55 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 6.5 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
22 kph.
The average sea temperature is of
6 °C. Therefore, the sea is very cold for swimming.
July is generally a very mild month. The average temperature is of
16 °C, with a minimum of
11.2 °C and a maximum of
20.9 °C.
On the coldest nights of the month, the temperature usually drops to around
5 °C. However, it dropped to
1.1 °C in July 2012.
On the warmest days of the month, the temperature usually reaches around
27.5 °C. However, it reached
31.2 °C in July 2013.
Precipitation amounts to
100.1 mm, distributed over 10 days.
The day lasts on average 15 hours and 30 minutes. So the days are long.
There are on average 7 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
21 kph.
The average sea temperature is of
10.8 °C. Therefore, the sea is very cold for swimming.
August, the warmest month of the year, is generally a very mild month. The average temperature is of
16.4 °C, with a minimum of
12.1 °C and a maximum of
20.8 °C.
On the coldest nights of the month, the temperature usually drops to around
6 °C. However, it dropped to
2.3 °C in August 2002.
On the warmest days of the month, the temperature usually reaches around
27.5 °C. However, it reached
31 °C in August 1996.
Precipitation amounts to
99.8 mm, distributed over 10 days.
The day lasts on average 14 hours and 10 minutes. So the days are long.
There are on average 6.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
21 kph.
The average sea temperature is of
14.2 °C. Therefore, the sea is very cold for swimming.
September is generally a mild month. The average temperature is of
12.8 °C, with a minimum of
8.5 °C and a maximum of
17 °C.
On the coldest nights of the month, the temperature usually drops to around
2.5 °C. However, it dropped to
0.6 °C in September 1995.
On the warmest days of the month, the temperature usually reaches around
24.5 °C. However, it reached
29.5 °C in September 2001.
Precipitation amounts to
125.8 mm, distributed over 11 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
22 kph.
The average sea temperature is of
12.9 °C. Therefore, the sea is very cold for swimming.
October is generally a quite mild month. The average temperature is of
7.8 °C, with a minimum of
4.3 °C and a maximum of
11.2 °C.
On the coldest nights of the month, the temperature usually drops to around
-1.5 °C. However, it dropped to
-5.4 °C in October 1999.
On the warmest days of the month, the temperature usually reaches around
20 °C. However, it reached
25.5 °C in October 2020.
Precipitation amounts to
158.1 mm, distributed over 14 days.
The day lasts on average 10 hours and 50 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 36% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
24 kph.
The average sea temperature is of
9.4 °C. Therefore, the sea is very cold for swimming.
November is generally a cold month. The average temperature is of
3.4 °C, with a minimum of
0 °C and a maximum of
6.7 °C.
On the coldest nights of the month, the temperature usually drops to around
-6.5 °C. However, it dropped to
-13.4 °C in November 1993.
On the warmest days of the month, the temperature usually reaches around
16 °C. However, it reached
19.2 °C in November 2006.
Precipitation amounts to
157.4 mm, distributed over 16 days.
The day lasts on average 9 hours and 20 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 27% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
26 kph.
The average sea temperature is of
5.9 °C. Therefore, the sea is very cold for swimming.
December is generally a very cold month. The average temperature is of
-1 °C, with a minimum of
-4.1 °C and a maximum of
2.1 °C.
On the coldest nights of the month, the temperature usually drops to around
-12 °C. However, it dropped to
-17.3 °C in December 1991.
On the warmest days of the month, the temperature usually reaches around
12 °C. However, it reached
17.9 °C in December 2017.
Precipitation amounts to
173.9 mm, distributed over 18 days.
The day lasts on average 8 hours and 30 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 2 hours of sunshine per day. So, the sun shines 24% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
28 kph.
The average sea temperature is of
2.9 °C. Therefore, the sea is very cold for swimming.