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Jasper Weather in May
May in Jasper brings low temperatures, with highs of 9°C (48°F) and nights dropping to -3°C (27°F). Rainfall is on the higher side this month, averaging around 79 mm (3.1 in), so keep a rain jacket handy.
Rainfall in Jasper in May
Historically, the month has about 11 days of snow/rain, averaging 79 mm (3.1 in) in total. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Jasper in May
Expect highs of 9°C (48°F) in Jasper in May, with nights dropping to around -3°C (27°F). It stays cool throughout the day, so warm layers are a good idea from morning to evening. Nights drop below freezing to -3°C (27°F). An extra blanket is worth packing if you're unsure about the heating where you're staying.
Sunshine in Jasper in May
With approximately 228 hours of sunshine, the days are filled with clear skies. Despite it being a cool month, it makes for pleasant days outside.May in Jasper can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Jasper Temperature in May
Min Temperature
-3°C (27°F)
Max Temperature
9°C (48°F)
Chance of Rain
38%
Precipitation
79 mm (3.1 in)
Rainy days
11 days
Sunshine
228 hours
Percentage Sunshine
46%
Jasper Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Jasper - and find the best time to visit.
Daily Historical Temperatures
32-year average (1994-2025)
Based on our historical records, temperatures in Jasper typically rise from around 13°C (55°F) at the start of May to approximately 18°C (64°F) by the end. Nights are cold, with lows typically ranging from -2°C (28°F) to 4°C (39°F).
Average temperatures in May
Daily Historical Precipitation
32-year average (1994-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather records for Jasper in May
Browse day-by-day weather records for Jasper spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jasper historical weather extremes in May
The extremes listed below come from historical weather data collected in Jasper from 2001 through 2026.
- The lowest daytime temperature in May was 1°C (34°F), recorded on May 3, 2002.
- The coldest night in May in Jasper was on May 12, 2014, with a minimum of -13°C (9°F).
- The heaviest May precipitation occurred on May 21, 2020, when 29 mm (1.1 in) of precipitation fell.
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Jasper in May
Cold weather calls for smart layering in May. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Jasper in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling4/10 -
Walking4/10 -
Camping1/10 -
Outdoor sports4/10
Jasper 3-Day Forecast
More climate data for Jasper
See the full Jasper climate overview or explore weather in Canada.
Popular in May
Where to go in May - average daytime high across popular destinations.
Niagara Falls
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