Climate - Charlottetown (Canada)

The climate of Charlottetown is continental, with very cold winters and mild or pleasantly warm summers.
The city is located on Prince Edward Island (aka PEI), in eastern Canada, north of Nova Scotia.
The clash between air masses makes the city windy, as well as rainy (and snowy).
On the coldest days of the year, the temperature can drop to -20 °C (-4 °F) or even below. In 1993, it went down to -30 °C (-22 °F).
On the hottest days of the year, it can reach 28/30 °C (82/86 °F). In 2001, it reached 33 °C (91.5 °F).
The average temperature of the coldest months (January and February) is around -6.5 °C (20 °F), that of the warmest month (July) is of 19.5 °C (67 °F). Here are the average temperatures.

Precipitation amounts to 1,160 millimeters (45.7 inches) per year: it is therefore quite abundant. It ranges from 80 mm (3.1 in) in the driest month (July) to 120 mm (4.7 in) in the wettest (December). On average, as high as 290 cm (9.5 feet) of snow fall per year. Usually, it snows from November to April. Here is the average precipitation.

On average, there are around 1,840 sunshine hours per year. Here are the average sunshine hours per day.

The sea temperature ranges between -0.5 °C (31 °F) and 17.5 °C (63.5 °F). So, it never becomes warm for swimming. In winter, the Northumberland Strait, which the city overlooks, can be frozen. Here are the average sea temperatures.

Best Time

The best months to visit Charlottetown are July and August, as they are the mildest of the year.

Charlottetown - Weather by month

Based on the period 1991-2020

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In January, the coldest month of the year, the weather in Charlottetown is usually freezing cold. The average temperature is of -6.6 °C (20 °F), with a minimum of -11.3 °C (11.6 °F) and a maximum of -2 °C (28.5 °F).
On the coldest nights of the month, the temperature usually drops to around -21.5 °C (-6.5 °F). However, it dropped to -29.3 °C (-20.7 °F) in January 1993.
On the warmest days of the month, the temperature usually reaches around 8.5 °C (47 °F). However, it reached 15 °C (59 °F) in January 1999.
Precipitation amounts to 100 mm (3.9 in), distributed over 19 days.
The day lasts on average 9 hours and 5 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 18 kph (11 mph).
The average sea temperature is of 0.5 °C (33 °F). Therefore, the sea is very cold for swimming.

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In February, the weather in Charlottetown is usually freezing cold. The average temperature is of -6.5 °C (20 °F), with a minimum of -11.4 °C (11.4 °F) and a maximum of -1.6 °C (29 °F).
On the coldest nights of the month, the temperature usually drops to around -21.5 °C (-6.5 °F). However, it dropped to -29.8 °C (-21.6 °F) in February 1993.
On the warmest days of the month, the temperature usually reaches around 7 °C (44.5 °F). However, it reached 12 °C (53.6 °F) in February 2000.
Precipitation amounts to 85 mm (3.3 in), distributed over 16 days.
The day lasts on average 10 hours and 25 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 18 kph (11 mph).
The average sea temperature is of -0.5 °C (31 °F). Therefore, the sea is very cold for swimming.

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In March, the weather in Charlottetown is usually very cold. The average temperature is of -2.4 °C (28 °F), with a minimum of -6.9 °C (19.6 °F) and a maximum of 2 °C (35.6 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -16.5 °C (2 °F). However, it dropped to -23.3 °C (-9.9 °F) in March 2001.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 10.5 °C (51 °F). However, it reached 24 °C (75.2 °F) in March 2012.
Precipitation amounts to 85 mm (3.3 in), distributed over 16 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 38% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 18 kph (11 mph).
The average sea temperature is of -0.5 °C (31 °F). Therefore, the sea is very cold for swimming.

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In April, the weather in Charlottetown is usually cold. The average temperature is of 3.4 °C (38 °F), with a minimum of -1.6 °C (29.1 °F) and a maximum of 8.4 °C (47.1 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -8 °C (18 °F). However, it dropped to -13.6 °C (7.5 °F) in April 1995.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 18 °C (64 °F). However, it reached 24 °C (75.2 °F) in April 2004.
Precipitation amounts to 85 mm (3.3 in), distributed over 15 days.
The day lasts on average 13 hours and 35 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 36% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 1 °C (33.5 °F). Therefore, the sea is very cold for swimming.

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In May, the weather in Charlottetown is usually mild. The average temperature is of 9.6 °C (49 °F), with a minimum of 3.8 °C (38.8 °F) and a maximum of 15.5 °C (59.9 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -2.5 °C (28 °F). However, it dropped to -5.3 °C (22.5 °F) in May 2001.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 24 °C (75.5 °F). However, it reached 28 °C (82.4 °F) in May 1992.
Precipitation amounts to 90 mm (3.5 in), distributed over 14 days.
The day lasts on average 15 hours and 0 minutes. So the days are long.
There are on average 6.5 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 4.5 °C (40.5 °F). Therefore, the sea is very cold for swimming.

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In June, the weather in Charlottetown is usually very mild. The average temperature is of 15.1 °C (59 °F), with a minimum of 9.5 °C (49.1 °F) and a maximum of 20.7 °C (69.2 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 2 °C (36 °F). However, it dropped to -1.3 °C (29.7 °F) in June 2016.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 27.5 °C (81.5 °F). However, it reached 31 °C (87.8 °F) in June 2003.
Precipitation amounts to 100 mm (3.9 in), distributed over 13 days.
The day lasts on average 15 hours and 40 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 7.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 10 °C (50 °F). Therefore, the sea is very cold for swimming.

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In July, the warmest month of the year, the weather in Charlottetown is usually warm. The average temperature is of 19.4 °C (67 °F), with a minimum of 14.4 °C (57.8 °F) and a maximum of 24.5 °C (76.1 °F).
On the coldest nights of the month, the temperature usually drops to around 8.5 °C (47 °F). However, it dropped to 3.3 °C (37.9 °F) in July 2009.
On the warmest days of the month, the temperature usually reaches around 29 °C (84.5 °F). However, it reached 32 °C (89.6 °F) in July 2013.
Precipitation amounts to 80 mm (3.1 in), distributed over 13 days.
The day lasts on average 15 hours and 20 minutes. So the days are long.
There are on average 8 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 15.5 °C (60 °F). Therefore, the sea is cold for swimming.

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In August, the weather in Charlottetown is usually warm. The average temperature is of 19.1 °C (66 °F), with a minimum of 14.1 °C (57.3 °F) and a maximum of 24.2 °C (75.6 °F).
On the coldest nights of the month, the temperature usually drops to around 8 °C (46 °F). However, it dropped to 4.1 °C (39.4 °F) in August 2007.
On the warmest days of the month, the temperature usually reaches around 29 °C (84 °F). However, it reached 33 °C (91.4 °F) in August 2001.
Precipitation amounts to 95 mm (3.7 in), distributed over 12 days.
The day lasts on average 14 hours and 5 minutes. So the days are long.
There are on average 7 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 14 kph (8 mph).
The average sea temperature is of 17.5 °C (63.5 °F). Therefore, the sea is cold for swimming.

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In September, the weather in Charlottetown is usually very mild. The average temperature is of 15.1 °C (59 °F), with a minimum of 10 °C (50 °F) and a maximum of 20.1 °C (68.2 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 3 °C (37 °F). However, it dropped to -1 °C (30.2 °F) in September 2018.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 26 °C (78.5 °F). However, it reached 31.5 °C (88.7 °F) in September 2001.
Precipitation amounts to 95 mm (3.7 in), distributed over 13 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 15 °C (59 °F). Therefore, the sea is cold for swimming.

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In October, the weather in Charlottetown is usually mild. The average temperature is of 9.2 °C (49 °F), with a minimum of 4.7 °C (40.4 °F) and a maximum of 13.7 °C (56.7 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -2 °C (28.5 °F). However, it dropped to -4.7 °C (23.5 °F) in October 2009.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 21 °C (70 °F). However, it reached 25.2 °C (77.4 °F) in October 2010.
Precipitation amounts to 110 mm (4.3 in), distributed over 15 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 37% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 11.5 °C (52.5 °F). Therefore, the sea is very cold for swimming.

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In November, the weather in Charlottetown is usually cold. The average temperature is of 3.6 °C (38 °F), with a minimum of -0.4 °C (31.2 °F) and a maximum of 7.6 °C (45.7 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -8 °C (17.5 °F). However, it dropped to -15 °C (5 °F) in November 2018.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 17 °C (62.5 °F). However, it reached 21 °C (69.8 °F) in November 2020.
Precipitation amounts to 115 mm (4.5 in), distributed over 17 days.
The day lasts on average 9 hours and 25 minutes.
There are on average 2 hours of sunshine per day. So, the sun shines 22% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 7 °C (45 °F). Therefore, the sea is very cold for swimming.

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In December, the weather in Charlottetown is usually very cold. The average temperature is of -2.1 °C (28 °F), with a minimum of -6.1 °C (21 °F) and a maximum of 1.8 °C (35.3 °F).
On the coldest nights of the month, the temperature usually drops to around -15.5 °C (4.5 °F). However, it dropped to -23.7 °C (-10.7 °F) in December 1993.
On the warmest days of the month, the temperature usually reaches around 11.5 °C (52.5 °F). However, it reached 16 °C (60.8 °F) in December 2008.
Precipitation amounts to 120 mm (4.7 in), distributed over 20 days.
The day lasts on average 8 hours and 40 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 2.5 hours of sunshine per day. So, the sun shines 28% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is 18 kph (11 mph).
The average sea temperature is of 3 °C (37.5 °F). Therefore, the sea is very cold for swimming.