Last updated: April 22, 2025
September in Jasper, Canada, presents a dynamic climate marked by a broad temperature range, where daytime highs can reach up to 26°C (80°F) while the nights can drop to a chilly -12°C (11°F). With an average temperature settling around 5°C (41°F), this month ushers in a refreshing transition to fall. Rainfall is prevalent, with 15 days experiencing precipitation, accumulating to 86 mm (3.4 in), which contributes to the lush scenery that Jasper is renowned for. Coupled with high humidity levels at 83%, September in Jasper is a time of crisp air and vibrant landscapes, enticing both adventurers and nature enthusiasts alike.
In September, Jasper, Canada, experiences a notable transition from the warmth of summer to the chill of autumn. The temperatures showcase a pleasant minimum of -12°C (11°F) and a comfortable average of 5°C (41°F), while highs can reach a balmy 26°C (80°F). This month serves as a sweet spot, where visitors can enjoy the vibrant fall foliage against milder weather before the chill of October sets in. With temperatures gradually cooling, September marks a shift in the season, making it an ideal time for outdoor activities and exploration, as one can relish the lingering warmth while preparing for the crispness that lies ahead.
In September, Jasper, Canada, experiences a notable increase in precipitation, with an average of 86 mm (3.4 in) falling over 15 days. This marks a continuation of the wet trend seen during the summer months, particularly following the peak in July. Compared to August’s 76 mm, September's rainfall provides a refreshing transition into autumn, as the landscape prepares for the cooler months ahead. The uptick in precipitation also highlights Jasper's vibrant ecosystem, as the moisture nourishes both flora and fauna, making the region particularly picturesque during this time of year. As summer warmth gives way to crisp fall air, visitors can enjoy the rich colors of the foliage, all while being mindful of the increasing chances of rain.
In September, Jasper, Canada, experiences a slight drop in humidity, averaging around 83%. This marks a continuation of the gradual decline observed throughout the summer months, with July and August holding humidity levels at 87% and 84%, respectively. As autumn approaches, the air begins to feel drier, contrasting sharply with the winter months when humidity skyrockets to an impressive 95% to 98% from January through April. This seasonal shift not only affects the comfort levels for residents and visitors alike but also paints a vivid picture of Jasper's changing climate, where crisp autumn air gradually gives way to the moisture-laden chill of winter.
As September rolls into Jasper, Canada, the UV Index drops to 6, indicating a high exposure category. This marks a slight decrease from the very high levels experienced throughout the summer months, when the Index consistently peaked at 8. With a burn time of approximately 25 minutes, it's essential to take sun protection seriously, especially for those enjoying the stunning autumn landscapes. As daylight diminishes and temperatures cool, this transitional month serves as a reminder to stay vigilant against UV radiation. For more detailed insights, visit Jasper UV Index.
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September in Jasper, Canada, marks a transition as the vibrant summer days begin to wane, bringing an impressive 220 hours of sunshine to the area. This month offers a brilliant balance, with the sun still shining brightly, though it is a notable dip from the sun-drenched peak of 343 hours in July. As autumn unfolds, the lush landscapes are kissed by golden rays, providing perfect conditions for outdoor adventures. The gradual decline in sunlight from the summer months hints at the approach of fall, yet September remains a gem, bridging the warm vibes of summer and the cool embrace of the upcoming season. The 320 hours in May and 317 hours in June set the stage for a spectacular September, inviting both locals and visitors to bask in the beauty of Jasper’s changing scenery.
In Jasper, Canada, September marks a transitional phase in the weather cycle, where the likelihood of sunny days hovers around 30%. While this percentage indicates a drop from the peak summer months of July (54%) and August (38%), it still offers a fair chance for sunshine amidst the onset of autumn. Comparatively, the sunniness in September is more favorable than the earlier months, such as February (23%) and March (25%). As summer gently fades away, visitors can anticipate some pleasant, if not always sunny, moments to enjoy the breathtaking landscapes of Jasper. Whether it’s the golden hues of changing leaves or crisp mountain air, September remains a charming time to explore, with a hint of sunshine still glimmering through.
As September unfolds in Jasper, Canada, the days begin to shorten noticeably, offering 12 hours of daylight. This transition marks a shift from the vibrant summer months of June and July, which basked in 16 hours of sunlight. Similarly, August maintains a generous 14 hours, but as autumn approaches, daylight gradually diminishes. The trend is unmistakable: the lengthening shadows serve as a gentle reminder of the approaching cooler months, while still allowing ample time to enjoy the breathtaking beauty of Jasper's fall foliage during those lingering daylight hours. By October, daylight slips further to 10 hours, signaling a new phase in the seasonal cycle.
As September graces Jasper, Canada, the winds pick up slightly, averaging 2.2 m/s (5 mph), marking a refreshing transition. This month stands out as the wind speed is tied with March, suggesting a subtle resurgence of invigorating breezes as summer gives way to autumn. In contrast to the weaker currents of summer, where wind speeds dipped to an average of 1.5 m/s (3 mph) in July, September's winds herald the impending seasonal change. Following this month, October maintains a steady pace with 2.0 m/s (5 mph), but November takes the lead with a brisk 2.3 m/s (5 mph), indicating a trend of increasing wind speeds as colder months approach. This progression not only enhances the region's stunning fall scenery but also invites outdoor enthusiasts to revel in the invigorating air of Jasper's majestic landscapes.
The weather in Jasper changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Jasper and find detailed weather information for every month.
In September, temperatures in Jasper range significantly, with a minimum of -12°C (11°F) and a maximum reaching 26°C (80°F), resulting in an average temperature of 5°C (41°F). This month experiences a moderate amount of precipitation, totaling 86 mm (3.4 in) over about 15 days, while the humidity sits at a comfortable 83%. In contrast, January brings the harshest conditions, with a bone-chilling minimum temperature of -41°C (-41°F) and a maximum of just 1°C (34°F), leading to a much colder average of -13°C (9°F). Precipitation is lower in January, at 36 mm (1.4 in) over 8 days, but the humidity is higher at 95%, making the cold feel even more intense. For more detailed information on Jasper's winter climate, you can visit Jasper weather in January.
In comparing September and February weather, September presents a much milder climate with temperatures ranging from a minimum of -12°C (11°F) to a comfortable maximum of 26°C (80°F), resulting in an average of 5°C (41°F). There is significant precipitation in September, totaling 86 mm (3.4 in) over 15 days, coupled with a relatively high humidity of 83%. In contrast, February experiences much colder conditions, with an average temperature of -14°C (7°F) and a maximum of only 5°C (42°F), but it can plunge to a frigid minimum of -36°C (-32°F). February also sees less rain, with 50 mm (2.0 in) of precipitation over 12 days, though the humidity is notably higher at 95%. For a deeper insight into February weather, you can explore Jasper weather in February.
September and March present distinctly different weather conditions. In September, temperatures range from a chilly -12°C (11°F) at night to a warm 26°C (80°F) during the day, with an average temperature of 5°C (41°F). The month sees about 86 mm (3.4 in) of precipitation over roughly 15 days, accompanied by a humidity level of 83%. In contrast, March is considerably colder, featuring a minimum temperature of -33°C (-27°F) and a maximum of only 13°C (56°F), with an average of -7°C (20°F). During this month, precipitation is lower at 58 mm (2.3 in) across 13 days, but humidity rises to 91%. For a more detailed look at March weather in Jasper, check out this link: Jasper weather in March.
September and April present contrasting weather conditions in Jasper. In September, temperatures range from a chilly -12°C (11°F) at night to a warm 26°C (80°F) during the day, with an average of 5°C (41°F), while April's temperatures are noticeably colder, with a minimum of -22°C (-7°F) and a maximum of 16°C (62°F), resulting in a much lower average of -3°C (28°F). Precipitation is more frequent in September, with 86 mm (3.4 in) falling over 15 days compared to April's 61 mm (2.4 in) over 14 days. Additionally, humidity is slightly higher in April at 89% compared to 83% in September. For more details on April weather in Jasper, visit Jasper weather in April.
September and May present distinctly different weather patterns. In September, temperatures range from a minimum of -12°C (11°F) to a maximum of 26°C (80°F), with an average of 5°C (41°F). This month experiences more precipitation, totaling 86 mm (3.4 in) across about 15 days, and a humidity level of 83%. In contrast, May features milder temperatures, with a minimum of -9°C (16°F) and a maximum of 23°C (74°F), yielding an average of 3°C (39°F). The precipitation in May is slightly lower at 71 mm (2.8 in), occurring over 12 days, and it has a higher humidity level of 87%. For a detailed look at the weather specifics, check out Jasper weather in May.
September and June present distinct weather patterns, reflecting the transition from summer to autumn. In June, temperatures range from a minimum of -7°C (20°F) to a maximum of 35°C (95°F), with an average of 8°C (47°F), showcasing the warmth typical of early summer. Conversely, September experiences cooler temperatures with a minimum of -12°C (11°F) and a maximum of 26°C (80°F), averaging 5°C (41°F). Precipitation is slightly higher in June, totaling 112 mm (4.4 in) over 17 days compared to September's 86 mm (3.4 in) across 15 days. Humidity remains consistent, hovering around 83% in September and 84% in June. For a closer look at the June climate in Jasper, you can explore Jasper weather in June.
In comparing the weather of September and July, we observe notable differences in temperature and precipitation patterns. September experiences a broader temperature range, with a minimum of -12°C (11°F), an average of 5°C (41°F), and a maximum of 26°C (80°F), highlighting a cooling trend as summer ends. In contrast, July sees milder conditions with a minimum of -1°C (31°F), an average of 12°C (53°F), and a maximum of 35°C (95°F), reflecting the peak of summer warmth. Precipitation is slightly higher in July at 119 mm (4.7 in) over 16 days compared to 86 mm (3.4 in) over 15 days in September, along with a marginally higher humidity level of 87% during July. For a more detailed look at conditions, you can check out Jasper weather in July.
In comparing the weather between September and August, September tends to be cooler with a significant drop in average temperatures, ranging from a minimum of -12°C (11°F) to a maximum of 26°C (80°F). In contrast, August experiences milder conditions, featuring a minimum temperature of -3°C (26°F) and a maximum of 27°C (81°F). Precipitation levels are slightly higher in September, with 86 mm (3.4 in) recorded over 15 days, while August sees 76 mm (3.0 in) over just 12 days. Humidity remains relatively comparable, with September at 83% and August at 84%. For more detailed information, you can visit Jasper weather in August.
September and October exhibit a notable shift in weather conditions. September sees a wider temperature range, with minimums around -12°C (11°F) and maximums reaching 26°C (80°F), resulting in an average of 5°C (41°F). The month experiences moderate precipitation of 86 mm (3.4 in) over 15 days, coupled with a relatively high humidity level of 83%. In contrast, October plunges into much colder temperatures, with minimums dropping to -28°C (-18°F) and an average of -3°C (26°F). While precipitation decreases slightly to 70 mm (2.8 in) over 14 days, humidity rises to 92%, making the air feel even chillier. For more detailed insights, you can check out Jasper weather in October.
September and November exhibit stark contrasts in weather conditions. September typically welcomes milder temperatures, with a minimum of -12°C (11°F) and an average of 5°C (41°F), reaching a pleasant maximum of 26°C (80°F). It also experiences moderate precipitation, totaling 86 mm (3.4 in) over 15 days, accompanied by a humidity level of 83%. In contrast, November brings much harsher conditions, characterized by colder temperatures that plunge to a minimum of -30°C (-22°F) and an average of -9°C (16°F), with a maximum of just 6°C (43°F). Although it sees slightly less precipitation at 67 mm (2.6 in) over 14 days, November's humidity soars to a notable 98%. For more details on November weather, you can view Jasper weather in November.
September and December present stark contrasts in weather conditions. September experiences a wide temperature range, with minimums dipping to -12°C (11°F) and soaring to a comfortable maximum of 26°C (80°F), resulting in an average of 5°C (41°F). The month has a considerable amount of precipitation at 86 mm (3.4 in), occurring over 15 days, with humidity levels at 83%. In contrast, December plunges into much colder territory, with minimum temperatures reaching a chilling -39°C (-39°F) and an average of -14°C (7°F), only peaking at 2°C (35°F). Precipitation lessens to 47 mm (1.8 in) over 11 days, but humidity rises significantly to a frigid 98%. For more detailed insights, check out Jasper weather in December.
As September unfolds in Jasper, the weather presents a captivating transition from the warmth of summer to the crisp embrace of autumn. This month experiences significant variations, boasting a maximum temperature that still kisses the warmth of 26°C, while average temperatures dip to about 5°C, hinting at the approaching chill. Unlike the drier summer months, September is marked by increased precipitation, with about 86 mm falling over 15 days, contributing to the lush scenery that surrounds the area. The humidity level, hovering around 83%, enhances the freshness in the air, creating an invigorating atmosphere for both residents and visitors. For a deeper dive into the climatic nuances of Jasper throughout the year, visit Jasper Climate.