May weather forecastPrince Rupert, Canada
May
Weather in May
May, the last month of the spring in Prince Rupert, is a cool month, with an average temperature fluctuating between 11°C (51.8°F) and 7.5°C (45.5°F).Temperature
As May sets, the average high-temperature shows a slight increase, moving up from a frosty 7.7°C (45.9°F) in April to a cool 11°C (51.8°F). May notes an average low temperature of 7.5°C (45.5°F), subtly down from the daytime highs.Humidity
The average relative humidity in May is 82%.Rainfall
May is the month with the least rainfall in Prince Rupert. Rain falls for 16.8 days and accumulates 67mm (2.64") of precipitation.Snowfall
May through October are months without snowfall.Sea temperature
In May, the average sea temperature is 9°C (48.2°F).Note: Immersing oneself in 9°C (48.2°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
In May, the average length of the day in Prince Rupert, Canada, is 16h and 5min.On the first day of May, sunrise is at 6:01 am and sunset at 9:15 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 10:04 pm PDT.
Sunshine
In May, the average sunshine is 7.8h.UV index
In Prince Rupert, the average daily maximum UV index in May is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 3 during May translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Prince Rupert, Canada
- Average high temperature in May: 11°C
The warmest month (with the highest average high temperature) is August (15.3°C).
The month with the lowest average high temperature is December (3.6°C).
- Average low temperature in May: 7.5°C
The month with the highest average low temperature is August (11.8°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).
Average pressure in May
Prince Rupert, Canada
- Average pressure in May: 1016.4mbar
The month with the highest atmospheric pressure is July (1017.9mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed in May
Prince Rupert, Canada
- Average wind speed in May: 10.3km/h
The windiest month (with the highest average wind speed) is January (17.5km/h).
The calmest month (with the lowest average wind speed) is July (9.4km/h).
Average humidity in May
Prince Rupert, Canada
- Average humidity in May: 82%
The month with the highest relative humidity is August (86%).
The months with the lowest relative humidity are February and March (78%).
Average rainfall in May
Prince Rupert, Canada
- Average rainfall in May: 67mm
The wettest month (with the highest rainfall) is November (190mm).
The driest month (with the least rainfall) is May (67mm).
Average rainfall days in May
Prince Rupert, Canada
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is November (20.9 days).
The month with the least rainy days is February (13.8 days).
Average snowfall in May
Prince Rupert, Canada
- Average snowfall in May: 0mm
The month with the highest snowfall is January (112mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Prince Rupert, Canada
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is March (6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in May
Prince Rupert, Canada
- Average sea temperature in May: 9°C
The best months for swimming (with the highest average sea temperature) are July and August (13°C).
The coldest months (with the lowest average sea temperature) are January, February, March, April and December (7°C).
Average daylight in May /
Average sunshine in May
Prince Rupert, Canada
- Average daylight in May: 16h and 6min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in May: 7h and 48min
The month with the most sunshine is July (Average sunshine: 8h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Prince Rupert, Canada
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is May (12.2 days).
The month with the least sunshine days is November (7.4 days).
Average UV index in May
Prince Rupert, Canada
- Average UV index in May: 3
The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in May
Prince Rupert, Canada
- Average cloud cover in May: 54
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is September (Cloud cover 51).
Average visibility in May
Prince Rupert, Canada
- Average visibility in May: 9km
The month with the highest visibility is February (10km).
The months with the lowest visibility are January, March, April, May, June, July, August, September, October, November and December (9km).





