Last updated: April 22, 2025
September in Bromont, Canada showcases a vibrant transition into autumn, with temperatures ranging from a maximum of 30°C (87°F) to a refreshing minimum of -3°C (27°F). The average temperature sits comfortably at 16°C (60°F), making it an ideal time for outdoor activities amidst the changing foliage. Visitors can expect approximately 77 mm (3.0 in) of precipitation over 11 days, contributing to the region's lush landscapes. With humidity levels around 78%, the air carries a crispness that accentuates the beauty of early fall. Whether you're hiking or enjoying the local festivals, September in Bromont offers an invigorating experience.
In September, Bromont, Canada, transitions into early fall, showcasing a delightful range of temperatures that highlights the changing seasons. The month brings a noticeable chill, with minimum temperatures dipping to -3°C (27°F), while daytime highs can reach a pleasant 30°C (87°F), creating a comfortable average of 16°C (60°F). This temperature trend marks a stark contrast to the warm summer months, as the region begins to cool down significantly. Visitors can expect crisp mornings and refreshing afternoons, making September an ideal time for outdoor activities amidst the stunning autumn foliage. As summer yields to fall, Bromont's landscapes are painted in vibrant hues, inviting exploration and appreciation of its natural beauty.
In September, Bromont experiences a noticeable decline in precipitation, totaling 77 mm (3.0 in) over just 11 days. This marks a significant drop from the wet summer months of July and August, which both recorded 117 mm (4.6 in). As the region transitions into autumn, the decrease not only suggests a shift in weather patterns but also offers a reprieve from the frequent rains of earlier months. This trend of reduced precipitation continues into October, where rainfall spikes again, hinting at the dynamic climatic shifts that characterize the changing seasons in Bromont.
In Bromont, Canada, September marks a transition in humidity levels, with the average reaching 78%. This slight uptick from the summer months, where humidity settled around 75%, indicates a gradual shift towards the dampness typical of fall. As the year progresses, humidity levels show an overall trend of rising in the cooler months, starting from a relatively comfortable 80% in May and swelling to a high of 93% in January. While September may feel a bit more humid than August, it's still notably lower than the winter months that follow, creating a perfect blend of crisp autumn air tempered with lingering warmth. This dynamic makes September an enticing time to experience the beautiful landscapes of Bromont, where the effects of changing seasons are vividly illustrated.
In September, residents and visitors in Bromont, Canada, experience a noticeable shift as the UV Index settles at a high level of 7, with a burn time of 25 minutes. This marks a gradual decline from the summer months, where the index peaked at 9 in May and June, signaling very high exposure risk. As fall approaches, the UV levels remain elevated compared to earlier months, such as April's index of 7 and March's moderate 5. It's a reminder that while the warmth of summer lingers, protective measures against UV radiation are still essential. For more detailed insights, check the Bromont UV Index.
UV Risk Categories
With September gracing Bromont, Canada, you can savor the waning warmth of summer as the sun graces the sky for 288 hours—a delightful offering that marks a slight dip from the sun-drenched peaks of July and August. Following the trend of longer days in the summer months, September still allows for ample sunshine, making it an ideal time for outdoor adventures amidst the stunning fall foliage. As the days grow shorter, the transition into autumn provides a perfect backdrop for enjoying the last vestiges of summer's light before the cooler October sets in, where sun hours drop to 191. This seasonal shift not only showcases the beauty of Bromont but also invites locals and visitors alike to embrace the vibrant landscape while basking in the warm September sun.
As summer gives way to autumn, **September in Bromont, Canada, offers a moderate 38% chance of sunny weather, marking a transition from the summer's sunny peak. This month sees a slight increase from the somewhat cloudy July, which dips to 28% sunshine, and mirrors closely the 35% in April. Notably, September benefits from a higher likelihood than the earlier spring months, hinting at the lingering warmth of summer. While it may not be as consistently sunny as August's impressive 43%, September still presents a pleasant opportunity to enjoy the outdoors before the chill of October sets in. Overall, this month strikes a balance with an encouraging chance of clear skies, perfect for those looking to relish the last days of warmth.
As September unfolds in Bromont, Canada, the days begin to shorten, with daylight lasting around 12 hours. This gradual decline marks a transition from the sun-drenched days of summer, where June and July bask in up to 15 hours of light, to the crisp fall evenings where daylight dwindles to 10 hours by October. The month strikes a harmonious balance, still benefiting from a good amount of sun that gently softens the transition into the cooler seasons. Nature begins to paint the landscape in vibrant autumn hues, as the lingering warmth of summer meets the crispness of fall, making September a particularly enchanting time of year.
As September arrives in Bromont, Canada, the average wind speed registers at 3.1 m/s (7 mph), marking a gentle shift in the seasonal breeze. This month sees a subtle rise from the summer lull, characterized by lower winds of 2.5 m/s (6 mph) in July and August. The refreshing currents of September are reminiscent of spring's invigorating touch, bridging the gap towards the breezier months ahead. Following September, the wind dynamics shift again, as October returns to a calmer pace of 2.7 m/s (6 mph). Overall, this transitional period highlights September's unique position, where the winds begin to pick up just before they usher in the crisp, cool air of fall.
The weather in Bromont 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 Bromont and find detailed weather information for every month.
September and January present stark contrasts in weather. In September, temperatures range from a minimum of -3°C (27°F) to a comfortable maximum of 30°C (87°F), with an average of 16°C (60°F). This month experiences a considerable amount of rain, totaling 77 mm (3.0 in) over 11 days, coupled with a moderate humidity level of 78%. In contrast, January is much colder, with temperatures dipping as low as -32°C (-25°F) and not exceeding 13°C (56°F), averaging -8°C (18°F). Precipitation in January is slightly higher at 94 mm (3.7 in) across 12 days, and the humidity rises to a notable 93%. The severe drop in temperatures and increased humidity creates a vastly different atmosphere compared to the milder and more variable conditions of September. For further insights, you can check out Bromont weather in January.
September and February present stark contrasts in weather. In September, temperatures typically range from a comfortable minimum of -3°C (27°F) to a warm maximum of 30°C (87°F), with an average of 16°C (60°F). The month experiences 77 mm (3.0 in) of precipitation over roughly 11 days, accompanied by a humidity level of 78%. Conversely, February brings much colder conditions, with a chilling minimum of -27°C (-15°F) and an average temperature of -6°C (21°F), reaching a maximum of just 16°C (61°F). This winter month sees slightly higher precipitation at 88 mm (3.5 in) across about 15 days, alongside a humidity level of 92%. For more detailed insights, you can check Bromont weather in February.
In comparing the weather of September and March, one can observe stark differences in temperature and precipitation. September typically experiences a broad temperature range, with lows around -3°C (27°F) and highs reaching up to 30°C (87°F), averaging 16°C (60°F). In contrast, March hovers much colder, with minimum temperatures plunging to -23°C (-9°F) and highs only reaching 21°C (70°F), resulting in an average temperature of -2°C (29°F). While September enjoys a more moderate humidity level of 78% and experiences about 77 mm (3.0 in) of precipitation over 11 days, March tends to be wetter with 91 mm (3.6 in) of precipitation spread across 13 days and higher humidity at 86%. For more details on the specific weather conditions in March, you can check out Bromont weather in March.
When comparing the weather in September and April, notable differences emerge. September boasts a wider temperature range with minimums of -3°C (27°F) and maximums reaching up to 30°C (87°F), averaging around 16°C (60°F). In contrast, April temperatures are generally cooler, with a minimum of -10°C (14°F) and a maximum of 24°C (76°F), resulting in an average of just 6°C (43°F). Additionally, September experiences less precipitation at 77 mm (3.0 in) over 11 days, while April sees more rainfall at 119 mm (4.7 in) across 15 days, contributing to a slightly higher humidity level of 85% compared to September's 78%. For a detailed overview of the weather in April, you can refer to Bromont weather in April.
In comparing the weather of September and May, we notice a range of temperatures with September offering more warmth overall. September has an average temperature of 16°C (60°F) and can reach a maximum of 30°C (87°F), while May presents slightly cooler conditions with an average of 13°C (56°F) and a maximum of 35°C (96°F). Both months experience significant precipitation, with May receiving 106 mm (4.2 inches) over 13 days, slightly more than September's 77 mm (3.0 inches) on 11 days. Humidity levels are also comparable, hovering around 78% in September and 80% in May. For more detailed information about the climates, you can refer to Bromont weather in May.
September and June exhibit notable differences in weather patterns. September experiences a wider temperature range, with minimums dipping as low as -3°C (27°F) and maximums reaching up to 30°C (87°F), leading to an average of 16°C (60°F). In contrast, June showcases slightly milder temperatures, with lows of 1°C (34°F) and highs around 32°C (91°F), averaging 18°C (65°F). Moreover, June generally sees more precipitation, totaling 117 mm (4.6 in) over 12 days, compared to September's 77 mm (3.0 in) over 11 days. Both months exhibit high humidity levels, with September at 78% and June slightly lower at 74%. For more detailed information about the weather in June, you can visit Bromont weather in June.
When comparing the weather in September to that of July, notable differences emerge. September experiences cooler temperatures with a minimum of -3°C (27°F) and an average of 16°C (60°F), whereas July enjoys warmer conditions, starting with a minimum of 8°C (47°F) and an average of 21°C (70°F). July also reaches higher maximum temperatures, peaking at 34°C (93°F) compared to September’s maximum of 30°C (87°F). Precipitation is more pronounced in July, with 118 mm (4.7 in) across 14 days, compared to September's 77 mm (3.0 in) over 11 days, although humidity levels are fairly similar, at 76% in July and 78% in September. For more details, check out Bromont weather in July.
In comparing the weather of September and August, September experiences a cooler temperature range with a minimum of -3°C (27°F) and an average of 16°C (60°F), while August has a milder minimum of 6°C (43°F) and an average of 20°C (68°F). August also tends to be slightly warmer with a maximum temperature of 32°C (89°F) compared to September's maximum of 30°C (87°F). Precipitation is more frequent in August, with 117 mm (4.6 in) over 14 days, while September sees a total of 77 mm (3.0 in) spread across 11 days. Humidity remains relatively similar, with September at 78% and August at 75%. For more details on August weather conditions, you can visit Bromont weather in August.
September and October share the transition of seasons, but their weather patterns reveal notable differences. In September, temperatures range from a milder -3°C (27°F) at night to a warm 30°C (87°F) during the day, with an average of 16°C (60°F). It experiences 77 mm (3.0 in) of precipitation over 11 days, coupled with a humidity level of 78%. In contrast, October brings cooler temperatures, with nighttime lows of -7°C (20°F) and daytime highs peaking at 26°C (79°F), averaging around 10°C (49°F). Precipitation increases significantly to 148 mm (5.8 in) spread over 15 days, and humidity rises to 86%. For a detailed look at what to expect, check out Bromont weather in October.
September and November present contrasting weather patterns. In September, temperatures range from a mild -3°C (27°F) to a warm 30°C (87°F), with an average of 16°C (60°F). The month experiences 77 mm (3.0 in) of rainfall over about 11 days, with a relative humidity of 78%. In stark contrast, November sees much colder temperatures, with a minimum of -20°C (-3°F) and an average of just 1°C (34°F), peaking at 22°C (73°F). Precipitation increases to 128 mm (5.0 in) over 16 days, and humidity rises to 88%. The shift from the relatively warm and drier September to the colder and wetter November highlights the transition into winter. For more details, visit Bromont weather in November.
In September, the weather is significantly milder, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 30°C (87°F), coupled with an average of 16°C (60°F). This month experiences 77 mm (3.0 in) of precipitation over 11 days and a humidity level of 78%. In contrast, December plunges into winter conditions, featuring a stark temperature range from -27°C (-16°F) up to 16°C (60°F), with an average temperature of -5°C (24°F). Precipitation slightly increases to 87 mm (3.4 in) across 14 days, and humidity rises to 89%. For a closer look at December weather specifics, you can check Bromont weather in December.
As September arrives in Bromont, the weather showcases a captivating transition from the warm summer days to the crispness of autumn. While some days still flirt with the warmth of 30°C, the overall atmosphere shifts, bringing cooler average temperatures around 16°C and the occasional chill dipping down to -3°C at night. This month also experiences an uptick in humidity at 78%, coupled with more frequent rain, resulting in nearly half the days seeing some form of precipitation. The 77 mm of rainfall over 11 days adds a refreshing touch to the landscape, setting the stage for vibrant fall foliage. For a comprehensive understanding of Bromont's weather patterns throughout the year, visit Bromont Climate.