The 5 most beautiful lakes in Canada
Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.
Jasper Weather in September
Thinking of visiting Jasper in September? Expect moderate temperatures reaching 12°C (54°F) during the day, dropping to -1°C (30°F) at night, and note that quite a bit of snow/rainfall is likely.
Rainfall in Jasper in September
Climate statistics over the past 30 years suggest around 12 days of snow/rain, with 81 mm (3.2 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Jasper in September
Temperatures in Jasper in September top out at 12°C (54°F) and drop to -1°C (30°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights are well below freezing at -1°C (30°F). An extra blanket is a good idea if you feel the cold, especially in older or less well-heated accommodation.
Sunshine in Jasper in September
The area enjoys a balanced 177 hours of sunlight, ensuring it's neither too overcast nor too sunny.If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Jasper.
Jasper Temperature in September
Min Temperature
-1°C (30°F)
Max Temperature
12°C (54°F)
Chance of Rain
41%
Precipitation
81 mm (3.2 in)
Rainy days
12 days
Sunshine
177 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
33-year average (1991-2025)
Based on our historical records, temperatures in Jasper typically drop from around 19°C (66°F) at the start of September to approximately 15°C (59°F) by the end. Nights are cold, with lows typically ranging from 1°C (34°F) to 5°C (41°F).
Average temperatures in September
Daily Historical Precipitation
33-year average (1991-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather records for Jasper in September
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 September
Our historical data for Jasper spans 1996 to 2025, revealing these weather extremes.
- The coldest September day was on September 28, 2019, with a maximum of 1°C (34°F).
- The coldest night in September in Jasper was on September 30, 2019, with a minimum of -9°C (16°F).
- The wettest day in September Jasper was on September 20, 2017 with 37 mm (1.5 in) of precipitation.
Best Places in Canada in September
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in September →
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 September
The weather can swing between comfortable and chilly in September, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Jasper in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming5/10 -
Cycling6/10 -
Walking6/10 -
Camping1/10 -
Outdoor sports6/10
Jasper 3-Day Forecast
More climate data for Jasper
See the full Jasper climate overview or explore weather in Canada.
Popular in September
Where to go in September - average daytime high across popular destinations.
Toronto
22°C (72°F) Niagara Falls23°C (73°F) Montréal
22°C (72°F) Ottawa22°C (72°F) Quebec City
20°C (68°F) Vancouver19°C (66°F) Calgary19°C (66°F) Whistler15°C (59°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most beautiful lakes in Canada
Canada in September: Where Is the Best Weather?
Compare September weather in Toronto, Montreal, Vancouver, Quebec City and Osoyoos to find Canada's warmest, driest and sunniest destinations.
Canoeing the south Nahannii
The South Nahanni in the northwest of Canada is one of the most impressive wilderness rivers in the world. Canoeing the south Nahanni is something you must add to your bucket list.
See Polar Bears in Churchill Canada
Thousands of bears gather at the small town of Churchill. In the evening the northern lights give a light show against the dark evening sky. An unforgettable experience.