Prince Rupert Weather in May
May in Prince Rupert averages 13°C (55°F) during the day and 7°C (45°F) at night. Quite a bit of rainfall is typical this month, with around 145 mm (5.7 in) on average. An umbrella is a good idea.
Rainfall in Prince Rupert in May
Based on our climate data of the past 30 years, about 19 days of rain are anticipated, with 145 mm (5.7 in) on average. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Prince Rupert in May
May in Prince Rupert brings typical temperatures with highs around 13°C (55°F) and lows of 7°C (45°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows around 7°C (45°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Prince Rupert in May
The area enjoys a balanced 175 hours of sunlight, ensuring it's neither too overcast nor too sunny.
Wind Speed in Prince Rupert in May
Average wind speeds reach 3 m/s (6 knots) in May, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.
Average water temperature in May
The water sits at 9°C (48°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.May in Prince Rupert has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Prince Rupert's climate page.
Prince Rupert Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
13°C (55°F)
Water Temperature
9°C (48°F)
Chance of Rain
64%
Precipitation
145 mm (5.7 in)
Rainy days
19 days
Humidity
74%
Windspeed
3 m/s (6 knots)
Sunshine
175 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Prince Rupert typically stay consistent throughout May, with daily highs averaging around 13°C (55°F). Nights are cold, with lows typically ranging from 5°C (41°F) to 8°C (46°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Prince Rupert in May
Browse day-by-day weather records for Prince Rupert spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Prince Rupert historical weather extremes in May
Based on weather observations in Prince Rupert between 1976 and 2026, these are the recorded extremes during May.
- Prince Rupert recorded its highest May temperature of 27°C (81°F) on May 29, 1983.
- The lowest daytime temperature in May was 6°C (43°F), recorded on May 9, 2012.
- Prince Rupert registered its coldest May night on May 19, 1992, with temperatures dropping to -1°C (30°F).
Best Places in Canada in May
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in May →
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What to Wear in Prince Rupert in May
The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Expect water temperatures of around 9°C (48°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Prince Rupert in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Canada, check out our Prince Rupert's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Prince Rupert climate overview or explore weather in Canada.
