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Climate in Prince Rupert (Canada)


Average weather, temperature, rainfall, sunshine hours

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Prince Rupert (Canada), position the map


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Climate chart - Prince Rupert
Prince Rupert has an oceanic climate, with quite cold winters, cool summers, and frequent rainfall throughout the year.
Prince Rupert is a city of 12,000 inhabitants located in western Canada, in British Columbia, in the northernmost part of the Pacific coast, on a small island, Kaien Island, in an area of ​​fjords, and at 54 degrees north latitude. We are in the narrow relatively mild, very humid area of ​​Canada, the one located west of the mountains. In fact, to the east are the mountains of the coastal range, which are covered with perennial snow above 1,200 meters (3,900 feet).
About 20 km (12 mi) to the south is the mouth of the Skeena River.

Image of Prince Rupert

Precipitation is decidedly abundant. With 2,600 millimeters (102 inches) per year, Prince Rupert is the rainiest city in Canada. Further north, however, in Alaska, there is an even rainier area (see Ketchikan, where precipitation reaches almost 4 meters or 157 inches per year).
The rainiest period is from September to January, however, rainfall exceeds 100 mm (4 in) per month even in the least rainy months, June and July.
Prince Rupert is also one of the least sunny places in Canada. In addition to clouds, frequent all year round, in autumn and winter fog can form.

Although the winter is not very cold, with an average above freezing even in January, the humidity and wind can increase the feeling of cold.
Although most of the precipitation falls in the form of rain, it can sometimes snow. On average, 92 centimeters (36 inches) of snow fall per year. Snowfall typically occurs from November to March.
In addition, there can sometimes be cold waves, during which the temperature can drop to -15 °C (5 °F) or below. The coldest record is -24.4 °C (-11.9 °F), set in January 1965. In late November 1985, during one of the intense early cold spells that can occur in western North America, the temperature dropped to -20.6 °C (-5.1 °F). In recent decades, the record is -21.1 °C (-6 °F), set in January 2012.

Summer is cool, so much so that the temperature exceeds 20 °C (68 °F) for a few days a year, and reaches 30 °C (86 °F) only occasionally.

Prince Rupert - Climate data


In Prince Rupert, the average temperature of the coldest month (January) is of 2.7 °C, that of the warmest month (August) is of 14.3 °C. Here are the average temperatures.
Prince Rupert - Average temperatures (1991-2020)
Temperatures (°C)
MonthMinMaxMean
January-0.45.72.7
February-0.16.53.2
March0.97.84.4
April3.110.66.9
May6.213.59.9
June9.115.312.2
July11.116.813.9
August11.217.414.3
September915.612.3
October5.611.88.7
November2.27.95
December0.45.93.2
Year4.911.38.05

Precipitation amounts to 2620 millimeters per year: it is therefore very abundant. It ranges from 108.8 millimeters in the driest month (June) to 373.6 millimeters in the wettest one (October). Here is the average precipitation.
Prince Rupert - Average precipitation
MonthRain (mm)Days
January27622
February18618
March20022
April17220
May13818
June10917
July11918
August16918
September26620
October37424
November31724
December29423
Year2620244

The sea temperature ranges from 6.5 °C in February, March to 13.5 °C in July, August. Here are the average sea temperatures.
Prince Rupert - Sea temperature
MonthTemperatures (°C)
January7
February6.5
March6.5
April7.5
May9
June11.5
July13.5
August13.5
September12
October10
November8.5">
December7.5
Year9.4

There are on average around 1245 sunshine hours per year. Here are the average hours of sunshine per day.
Prince Rupert - Sunshine hours
MonthAverageTotal
January1.540
February2.565
March3.5105
April5145
May5.5170
June5155
July5150
August5150
September4115
October2.570
November1.545
December130
Year3.41245

Prince Rupert - Weather by month

Based on the period 1991-2020
(January - February - March - April - May - June - July - August - September - October - November - December)


January, the coldest month of the year, is generally a cold month. The average temperature is of 2.7 °C, with a minimum of -0.4 °C and a maximum of 5.7 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -9.5 °C. However, it dropped to -21.1 °C in January 2012.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 11 °C. However, it reached 16.3 °C in January 2004.
Rain iconPrecipitation amounts to 276.3 mm, distributed over 22 days.
The day lasts on average 8 hours and 0 minutes.
Sun iconThere are on average 1.5 hours of sunshine per day. So, the sun shines 16% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of 13.3 kph.
Sea iconThe average sea temperature is of 6.8 °C. Therefore, the sea is very cold for swimming.


February is generally a cold month. The average temperature is of 3.2 °C, with a minimum of -0.1 °C and a maximum of 6.5 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -6.5 °C. However, it dropped to -14.1 °C in February 1994.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 11.5 °C. However, it reached 19 °C in February 1992.
Rain iconPrecipitation amounts to 185.6 mm, distributed over 18 days.
The day lasts on average 9 hours and 50 minutes.
Sun iconThere are on average 2.5 hours of sunshine per day. So, the sun shines 24% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of 12.8 kph.
Sea iconThe average sea temperature is of 6.4 °C. Therefore, the sea is very cold for swimming.


March is generally a quite cold month. The average temperature is of 4.4 °C, with a minimum of 0.9 °C and a maximum of 7.8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -5.5 °C. However, it dropped to -13.2 °C in March 2003.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 13 °C. However, it reached 18.5 °C in March 1994.
Rain iconPrecipitation amounts to 199.6 mm, distributed over 22 days.
The day lasts on average 12 hours and 0 minutes.
Sun iconThere are on average 3.5 hours of sunshine per day. So, the sun shines 28% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of 13.4 kph.
Sea iconThe average sea temperature is of 6.5 °C. Therefore, the sea is very cold for swimming.


April is generally a quite mild month. The average temperature is of 6.9 °C, with a minimum of 3.1 °C and a maximum of 10.6 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -1 °C. However, it dropped to -5 °C in April 1992.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 16.5 °C. However, it reached 25.1 °C in April 2005.
Rain iconPrecipitation amounts to 172.4 mm, distributed over 20 days.
The day lasts on average 14 hours and 10 minutes.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of 12.5 kph.
Sea iconThe average sea temperature is of 7.4 °C. Therefore, the sea is very cold for swimming.


May is generally a mild month. The average temperature is of 9.9 °C, with a minimum of 6.2 °C and a maximum of 13.5 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 2.5 °C. However, it dropped to -1.6 °C in May 1992.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 20 °C. However, it reached 28 °C in May 1993.
Rain iconPrecipitation amounts to 137.6 mm, distributed over 18 days.
The day lasts on average 16 hours and 5 minutes. So the days are long.
Sun iconThere are on average 5.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of 10.8 kph.
Sea iconThe average sea temperature is of 9.2 °C. Therefore, the sea is very cold for swimming.


June is generally a mild month. The average temperature is of 12.2 °C, with a minimum of 9.1 °C and a maximum of 15.3 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 5.5 °C. However, it dropped to 2.6 °C in June 1992.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 21 °C. However, it reached 31.6 °C in June 2004.
Rain iconPrecipitation amounts to 108.8 mm, distributed over 17 days.
The day lasts on average 17 hours and 5 minutes. So the days are very long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 30% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of 9.9 kph.
Sea iconThe average sea temperature is of 11.6 °C. Therefore, the sea is very cold for swimming.


July is generally a mild month. The average temperature is of 13.9 °C, with a minimum of 11.1 °C and a maximum of 16.8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 8 °C. However, it dropped to 5.4 °C in July 1991.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 22 °C. However, it reached 26 °C in July 2018.
Rain iconPrecipitation amounts to 118.7 mm, distributed over 18 days.
The day lasts on average 16 hours and 30 minutes. So the days are long.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 29% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is of 8.8 kph.
Sea iconThe average sea temperature is of 13.3 °C. Therefore, the sea is very cold for swimming.


August, the warmest month of the year, is generally a mild month. The average temperature is of 14.3 °C, with a minimum of 11.2 °C and a maximum of 17.4 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 8 °C. However, it dropped to 4.6 °C in August 1992.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 22.5 °C. However, it reached 27.5 °C in August 2004.
Rain iconPrecipitation amounts to 169.1 mm, distributed over 18 days.
The day lasts on average 14 hours and 40 minutes. So the days are long.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 33% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is of 9 kph.
Sea iconThe average sea temperature is of 13.7 °C. Therefore, the sea is very cold for swimming.


September is generally a mild month. The average temperature is of 12.3 °C, with a minimum of 9 °C and a maximum of 15.6 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 4.5 °C. However, it dropped to -0.7 °C in September 1992.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 20 °C. However, it reached 25 °C in September 2017.
Rain iconPrecipitation amounts to 266.3 mm, distributed over 20 days.
The day lasts on average 12 hours and 35 minutes.
Sun iconThere are on average 4 hours of sunshine per day. So, the sun shines 31% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is of 10.4 kph.
Sea iconThe average sea temperature is of 12.2 °C. Therefore, the sea is very cold for swimming.


October is generally a mild month. The average temperature is of 8.7 °C, with a minimum of 5.6 °C and a maximum of 11.8 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 0 °C. However, it dropped to -6.5 °C in October 1991.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 17 °C. However, it reached 21.9 °C in October 2008.
Rain iconPrecipitation amounts to 373.6 mm, distributed over 24 days.
The day lasts on average 10 hours and 25 minutes.
Sun iconThere are on average 2.5 hours of sunshine per day. So, the sun shines 22% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of 12.8 kph.
Sea iconThe average sea temperature is of 10.1 °C. Therefore, the sea is very cold for swimming.


November is generally a quite cold month. The average temperature is of 5 °C, with a minimum of 2.2 °C and a maximum of 7.9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -4.5 °C. However, it dropped to -15 °C in November 1996.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 13 °C. However, it reached 18 °C in November 2010.
Rain iconPrecipitation amounts to 317 mm, distributed over 24 days.
The day lasts on average 8 hours and 25 minutes.
Sun iconThere are on average 1.5 hours of sunshine per day. So, the sun shines 17% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of 13.8 kph.
Sea iconThe average sea temperature is of 8.4 °C. Therefore, the sea is very cold for swimming.


December is generally a cold month. The average temperature is of 3.2 °C, with a minimum of 0.4 °C and a maximum of 5.9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around -7.5 °C. However, it dropped to -17 °C in December 1996.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 11 °C. However, it reached 16.3 °C in December 1997.
Rain iconPrecipitation amounts to 294.2 mm, distributed over 23 days.
The day lasts on average 7 hours and 25 minutes. So the days are short. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
Sun iconThere is an average of 1 hour of sunshine per day. So, the sun shines 14% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of 14.4 kph.
Sea iconThe average sea temperature is of 7.3 °C. Therefore, the sea is very cold for swimming.

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