September Weather in Invermere, Canada

Last updated: April 22, 2025

In September, Invermere, Canada showcases a remarkable transition into autumn, with maximum temperatures peaking at 28°C (82°F) and an average temperature of 10°C (49°F). Nights can get crisp, dropping to a minimum of -6°C (21°F), illustrating the region's charming temperature fluctuations. Precipitation is a notable feature this month, with a total of 61 mm (2.4 in) spread over 11 days, contributing to the lush landscapes that define this area. The humidity level hovers around a comfortable 79%, enhancing the fresh, invigorating feel of early autumn in Invermere.

September Temperature in Invermere

As summer gracefully transitions into fall, Invermere, Canada experiences a notable shift in temperatures throughout September. With minimums dipping to -6°C (21°F) and a comfortable average of 10°C (49°F), the month marks a significant departure from the warmth of summer. Highs reaching up to 28°C (82°F) allow for pleasant days, perfect for enjoying the stunning autumn landscapes that begin to emerge. This blend of cooler mornings and mild afternoons creates an inviting atmosphere, making September a unique and vibrant time in Invermere, where the anticipation of winter is just on the horizon.

September Weather in Invermere: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Invermere, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec151326334453605949332314
Data source: Temperature data for Invermere generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Invermere

September in Invermere sees a moderate precipitation total of 61 mm (2.4 in), continuing the trend of slightly increased rainfall as the region transitions into fall. With 11 days of precipitation, September experiences a steady rhythm of moisture, mirroring the patterns established in the preceding summer months. This consistency hints at the changing seasons, as local waterways and landscapes begin to absorb the significant rainfall before the winter snows arrive. As temperatures cool and daylight hours shorten, the slight decrease from the summer's average precipitation highlights September's role in bridging the vibrant summer months with the more subdued, but equally beautiful, offerings of autumn in this picturesque Canadian locale.

September Precipitation Trends in Invermere

The chart displays monthly precipitation patterns in Invermere, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec4562706358103666061658577
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Invermere

As autumn approaches, the humidity in Invermere experiences a noticeable decline. In September, the humidity settles at a refreshing 79%, marking a point of relative comfort as the summer heat recedes. This decrease continues a pattern observed throughout the warmer months, where humidity levels gradually dropped from 84% in July and August. Following the peak of summer, this trend offers a welcome relief before the onset of October’s increase back to 88%. The transition from high summer humidity to the crispness of autumn showcases Invermere's seasonal shift, inviting residents and visitors to enjoy the outdoors in a more pleasant climate.

September Average Humidity in Invermere

This chart illustrates the average monthly humidity levels in Invermere, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec95%95%92%89%86%84%84%80%79%88%94%97%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Invermere

As summer fades into autumn, September in Invermere, Canada, brings a notable shift in the UV Index, settling at a moderate 7 on the scale, classified under the high exposure category. This marks a slight decline from the intensely bright days of July and August, which saw the UV Index peak at 9. With a burn time of 25 minutes, September offers a more forgiving sun, yet it's essential to remain vigilant about sun protection as outdoor activities continue. Overall, this month balances the lingering warmth of the summer sun with the onset of cooler seasons, making it a perfect time to enjoy the beauty of nature while being mindful of UV exposure. For more details, check out the Invermere UV Index.

Maximum UV Index Levels in Invermere for September

The chart shows the monthly maximum UV Index (UVI) for Invermere in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235799987421
Data source: Invermere September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Invermere

As summer gently fades into fall, September in Invermere offers a delightful transition marked by 273 hours of sunshine. This month, while noticeably cooler than the peak summer days of July and August, still basks in a generous amount of light, reflecting the lingering warmth of the season. After a steady rise in sunshine hours from January's modest 107 to July’s peak of 391, September sees a pleasing, albeit slight, decline. The sun-soaked days of summer gradually give way to the more tempered light of autumn, making September an ideal time for outdoor adventures against the backdrop of stunning fall foliage. With shorter days ahead, it’s a perfect moment to soak in those golden rays before the chill of October descends with its 208 hours of sunshine.

Monthly Sunshine Duration in Invermere: September Highlighted

The September sunshine duration represents the total number of hours Invermere experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec107h167h236h280h328h345h391h346h273h208h128h130h
Data source: Invermere September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Invermere During September

As summer transitions into autumn, Invermere's September weather holds promise for those hoping to bask in the sun. With a 45% chance of sunny days, this month maintains a strong streak of favorable weather, slightly lower than the peak summer months but still more inviting than earlier in the year. Notably, September enjoys a better likelihood of sunshine compared to both January and February, which languish below 32%. This upward trend in sunshine probability from the winter months culminates in a pleasant early fall, making September an appealing time to explore the natural beauty of Invermere before the chill of winter sets in.

Percentage of Sunny Days in September in Invermere

The chart illustrates the percentage of sunny days in Invermere throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Invermere experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%27%41%48%43%48%70%44%45%48%28%25%
Data source: Invermere September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Invermere in September

As September rolls in, daylight in Invermere, Canada, begins to wane, offering about 12 hours of sunlight—a gentle decline from the lengthy days of summer. This transition marks a shift from the vibrant 16 hours of daylight in June, gradually tapering through August’s 14 hours. By October, the days shrink further to 10 hours, signaling the approach of winter's shorter days. The gradual decrease reflects the natural rhythm of the seasons, providing a serene backdrop for early autumn activities, with lingering sunlight that invites both reflection and adventure.

Average Daylight Hours in Invermere for September

The chart illustrates the variation in daylight duration in Invermere throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 33m10h 4m11h 56m13h 51m15h 30m16h 21m15h 53m14h 23m12h 32m10h 38m8h 56m8h 3m
Data source: Invermere daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Invermere

As summer transitions into fall, Invermere experiences a subtle shift in its September winds. With an average speed of 1.4 m/s (3 mph), the winds pick up slightly compared to the more tranquil summer months, reflecting a gentle but noticeable change in the atmosphere. This uptick is mirrored in the following months of October and November, which maintain the same average wind speed. Throughout the year, winds in Invermere remain relatively consistent, hovering comfortably around 1.3 m/s (3 mph) for most of the seasons. However, September's slight increase signals the coming of autumn, inviting both locals and visitors to enjoy the crisp air and the breathtaking scenery that this time of year brings.

Average September Wind Speed in Invermere

The chart displays monthly wind speed patterns in Invermere, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.31.31.41.41.31.31.31.31.4 m/s1.41.41.4
Data source: Invermere September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Invermere Compares to Other Months

The weather in Invermere 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 Invermere and find detailed weather information for every month.

September and January present starkly contrasting weather conditions. In September, temperatures range from a chilly -6°C (21°F) at night to a warm 28°C (82°F) during the day, resulting in an average of 10°C (49°F). The month receives about 61 mm (2.4 in) of precipitation over 11 days, accompanied by a humidity level of 79%. Conversely, January is much colder, with temperatures plummeting to a minimum of -32°C (-25°F) and peaking at just 3°C (38°F), averaging -9°C (15°F). It experiences less precipitation at 45 mm (1.8 in) across 12 days but has a higher humidity level of 95%. For more details, visit Invermere weather in January.

In September, the weather is notably milder, with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 28°C (82°F), leading to a comfortable average of 10°C (49°F). The month experiences moderate precipitation of 61 mm (2.4 in) over 11 days, while humidity levels sit at 79%. In contrast, February is much colder, with temperatures plummeting from a minimum of -30°C (-22°F) to a maximum of only 6°C (43°F), creating an average temperature of -10°C (14°F). Precipitation slightly increases to 62 mm (2.5 in) across 13 days, and the humidity rises to 94%, contributing to the chill in the air. For a more detailed look at the weather during this winter month, check out Invermere weather in February.

In comparing the weather between September and March, a stark contrast emerges. September sees a broader temperature range, with minima at -6°C (21°F), an average of 10°C (49°F), and maxima reaching up to 28°C (82°F), combined with a relatively moderate humidity of 79% and 61 mm (2.4 in) of precipitation over 11 days. In contrast, March experiences much colder conditions, featuring minimum temperatures plummeting to -27°C (-17°F) and an average of -4°C (26°F), with a maximum of only 12°C (55°F). Additionally, March is wetter with 69 mm (2.7 in) of precipitation spread over 15 days and higher humidity at 92%. For a more detailed look at March weather specifics, check Invermere weather in March.

When comparing the weather in September and April, September generally offers milder temperatures, with an average of 10°C (49°F) and highs reaching up to 28°C (82°F), while April's temperatures are notably cooler, averaging around 0°C (33°F) with a maximum of just 15°C (60°F). Although both months experience comparable precipitation levels—61 mm (2.4 in) in September and 63 mm (2.5 in) in April—April tends to be wetter, with rain falling on about 15 days compared to September's 11 days. Additionally, humidity levels are higher in April at 89% compared to September's 79%, contributing to a crisper feel during the earlier spring month. For more specific details on April weather, you can check Invermere weather in April.

In comparing the weather of September and May, a noticeable difference in temperatures can be observed. September experiences a wider temperature range, with a minimum of -6°C (21°F) and a maximum reaching up to 28°C (82°F), while May's temperatures are slightly cooler, ranging from a minimum of -9°C (16°F) to a maximum of 23°C (74°F). Both months see a similar amount of precipitation, with September totaling 61 mm (2.4 in) over 11 days and May receiving 57 mm (2.3 in) across 13 days. Moreover, May tends to be slightly more humid at 86%, compared to September's 79%. For more details on May's weather specifics, you can explore Invermere weather in May.

In comparing September and June weather, September typically experiences a broader range of temperatures, with minimums dipping to -6°C (21°F) and maximums reaching up to 28°C (82°F). The average temperature in September is around 10°C (49°F), and the month sees 61 mm (2.4 in) of precipitation over approximately 11 days. On the other hand, June tends to be warmer overall, with minimum temperatures starting at 0°C (32°F) and maximums soaring to 35°C (96°F). The average in June is slightly higher at 12°C (53°F), with higher precipitation levels of 103 mm (4.1 in) spread over about 17 days. Additionally, the humidity in both months is relatively high, at 79% in September and 84% in June. For those interested in learning more about the weather specifics for June, you can visit Invermere weather in June.

In comparing September and July weather, it's evident that July tends to be warmer, with temperatures ranging from a minimum of 2°C (37°F) to a maximum of 35°C (96°F) and an average of 16°C (60°F). In contrast, September's temperatures are noticeably cooler, with a minimum of -6°C (21°F), an average of 10°C (49°F), and a maximum of 28°C (82°F). While both months experience precipitation on about 11 days, July sees slightly more rainfall at 66 mm (2.6 in) compared to September's 61 mm (2.4 in), and July is characterized by higher humidity at 84% versus September's 79%. For more detailed information, you can check Invermere weather in July.

September's weather brings cooler temperatures compared to August, with a minimum of -6°C (21°F) and an average of 10°C (49°F), while August experiences milder conditions with a minimum of 2°C (35°F) and an average of 15°C (59°F). The maximum temperature in September reaches 28°C (82°F), compared to August's peak of 33°C (92°F). Both months see similar precipitation levels, with September recording 61 mm (2.4 in) over 11 days and August slightly trailing with 60 mm (2.4 in) also over 11 days. Humidity remains relatively consistent, with September at 79% and August at 80%. For more details about August weather, visit Invermere weather in August.

September and October present a stark contrast in weather. September features a wider temperature range with a minimum of -6°C (21°F) and an average of 10°C (49°F), peaking at a warm 28°C (82°F). In contrast, October sees much colder conditions, with temperatures dropping significantly; the minimum plummets to -25°C (-12°F) and the average rests at just 1°C (34°F), while the maximum only reaches 20°C (69°F). Both months experience similar precipitation levels, with September receiving 61 mm (2.4 in) over 11 days and October slightly higher at 65 mm (2.5 in) over 12 days. Additionally, humidity rises from 79% in September to 88% in October, indicating a shift towards damp, colder months. For more detailed October weather information, visit Invermere weather in October.

September and November present a stark contrast in weather conditions. In September, temperatures range from a minimum of -6°C (21°F) to a maximum of 28°C (82°F), with an average of 10°C (49°F). The month experiences moderate precipitation of 61 mm (2.4 in) over 11 days and a humidity level of 79%. On the other hand, November sees much colder weather, with temperatures dropping to a minimum of -26°C (-14°F) and an average of -5°C (24°F), only reaching a maximum of 9°C (49°F). This month also records higher precipitation at 85 mm (3.3 in) spread over 16 days, coupled with increasing humidity at 94%. For a detailed look at November's weather in this region, you can check Invermere weather in November.

September weather offers a more moderate climate compared to December. With temperatures ranging from a minimum of -6°C (21°F) to a comfortable average of 10°C (49°F), and a maximum of 28°C (82°F), September allows for a pleasant outdoor experience. Although it experiences about 61 mm (2.4 in) of precipitation over 11 days, humidity is relatively lower at 79%. In contrast, December brings a significant drop in temperatures, with lows reaching -32°C (-25°F) and an average temperature of -10°C (14°F). The month sees increased precipitation of 77 mm (3.0 in) across 14 days and heightened humidity at 97%, creating a stark and chilly atmosphere. For more details, you can check Invermere weather in December.

Compare Invermere's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Invermere

As summer gives way to fall, Invermere in September showcases a distinct shift in weather patterns, blending warm days with cool nights. The vibrant warmth of early autumn peaks at a pleasant 28°C, while the nights can dip to a chilly -6°C, making for quite the contrast compared to the milder summer months. Rainfall becomes more frequent, with 11 days of precipitation, totaling 61 mm, accompanied by higher humidity levels that linger around 79%. This unique mix of temperatures and moisture signals the transition from the heat of summer to the crispness of fall, inviting outdoor enthusiasts to enjoy the changing landscape before winter sets in. For a deeper understanding of what to expect throughout the year, explore the full Invermere Climate.