Climate Overview
The climate in Prince Rupert is cool. The average annual temperature is 8°C and approximately 2897mm of precipitation falls per year. Prince Rupert receives a notable amount of rainfall throughout the year, including during its driest month. Prince Rupert is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are February, December, January, when temperatures can drop to -1°C. Prince Rupert experiences heavy snowfall, typically from January through December.
Temperature
Prince Rupert sees moderate temperature variation throughout the year, ranging from -1°C to 17°C. August is the warmest month, though highs remain moderate at 17°C with a mean of 14°C. The coldest month is February, when overnight lows fall to -1°C and the daily average is 2°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.
Precipitation
Prince Rupert is a very wet location, receiving approximately 2897mm of precipitation annually, which averages out to around 241mm per month. The wettest month is November, averaging 403mm of rainfall. January and October also tend to see above-average precipitation. The driest month is July, with just 114mm. That's 289mm less than November, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Prince Rupert receives heavy snowfall, accumulating around 259cm annually from January through December. The snowiest month is February, with approximately 61cm. Winter travel should account for significant snow cover.
Wind
Prince Rupert is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 17km/h in winter, 16km/h in spring, 14km/h in summer, 16km/h in autumn.
Seasons
88 days until Summer
It is currently spring in Prince Rupert, which began on March 20, 2026. Prince Rupert is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 17°C, while the coldest stretch bottoms out in February near -1°C. Summer is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from 1 to 13°C. Rainfall is heavy, totalling around 581mm across the season with a monthly average of 194mm. Winds are moderate at around 16km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 9 to 17°C. Rainfall is heavy, totalling around 432mm across the season with a monthly average of 144mm. Winds are generally light, averaging 14km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 3 to 15°C. Rainfall is heavy, totalling around 982mm across the season with a monthly average of 327mm. Expect around 31cm of snow accumulation during this period. Winds are moderate at around 16km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -1 to 5°C. Rainfall is heavy, totalling around 902mm across the season with a monthly average of 301mm. Expect around 154cm of snow accumulation during this period. Winds are moderate at around 17km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
The table below shows monthly climate averages for Prince Rupert based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
