Jasper, Alberta weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: June – September
What is the weather like in Jasper, Alberta in September?
In September, Jasper, Alberta is cool: daytime highs average 15 °C, and nights cool down to about 5 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 58 mm in total. Snow falls on about 2 days. All in all, September is a good month for a holiday in Jasper, Alberta.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 80 | 68 | 26 |
| Day | 21° | 15° | 7° |
| Night | 9° | 5° | −3° |
| Sun | 8 h | 6 h | 5 h |
| Rain days | 11 | 10 | 9 |
More details for September
- Daylight
- 12 h 47 min07:24 – 20:11
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 11 km/haverage daily peakAll months
- Cloud cover
- 58 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 2 days1 cm or more of fresh snowAll months
- Time zone
- UTC−6America/Edmonton
How the score comes together
- Temperatureweight 50 %80 %
- Sunshineweight 20 %53 %
- Few rainy daysweight 30 %56 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in September
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Jasper, Alberta in September: quick answers
Is Jasper, Alberta hot in September?
No. In September, Jasper, Alberta is cool: daytime highs average 15 °C and nights drop to about 5 °C.
Does it rain much in Jasper, Alberta in September?
Rain is frequent, with about 10 rainy days and 58 mm in total.
Jasper, Alberta month by month
The whole year in Jasper, AlbertaAll destinations: CanadaWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences