Last updated: April 22, 2025
In September, Sault Ste. Marie experiences a dynamic shift in weather, marked by maximum temperatures reaching a warm 29°C (85°F), while the average hovers around a comfortable 14°C (58°F). As summer gives way to fall, cooler nights can plunge to a brisk 2°C (36°F). This transitional month also sees 114 mm (4.5 in) of precipitation spread across 13 days, contributing to a humidity level of 77%. Residents and visitors should be prepared for this variable climate, offering a blend of warm days and refreshing spells, perfect for enjoying the rich autumn landscapes.
September in Sault Ste. Marie, Canada, marks a beautiful transition as the warm summer days begin to wane. With temperatures ranging from a minimum of 2°C (36°F) to an inviting maximum of 29°C (85°F), the month boasts an average of 14°C (58°F), offering a comfortable climate perfect for outdoor activities. As the summer's warmth lingers, residents and visitors alike can enjoy the vibrant foliage as it begins to take on autumn hues. September's gentle evenings and pleasant days provide a fitting farewell to summer, making it an ideal time to explore the scenic beauty and rich culture of this charming Canadian city.
September in Sault Ste. Marie marks a notable shift in precipitation patterns, with 114 mm (4.5 in) of rain recorded over 13 days. This represents the pinnacle of the summer's rainfall, following a relatively dry summer, particularly in July with only 74 mm (2.9 in). As the month transitions into autumn, the rainfall not only increases in volume but also heralds the onset of the wetter season ahead, where October typically brings even more rain, averaging 134 mm (5.3 in). This trend of elevated precipitation continues into the fall, emphasizing how September serves as a bridge between the drier summer months and the wetter conditions that characterize later in the year.
September in Sault Ste. Marie brings a noticeable transition in humidity, with levels averaging around 77%. This is a distinct increase from the peak summer months of July and August, which experience lower humidity at 69% and 72%, respectively. As autumn sets in, the air begins to hold more moisture, reflecting a gradual climb towards the wetter conditions typical of the later months. This shift signifies the approach of the colder seasons, as October's humidity rises to 85%. Overall, September acts as a pivotal month in the annual humidity cycle, bridging the gap between the drier summer and the more humid late autumn and winter months.
As summer gives way to autumn, September in Sault Ste. Marie sees a noticeable shift in the UV Index, dropping to 7, which falls into the high exposure category. This corresponds to a burn time of 25 minutes, allowing for more safe outdoor activities than in the peak summer months, where UV levels reached an intense 9. Notably, this reflects a gradual decline from the very high indices of July and August, signaling that while the sun remains strong, it is becoming more forgiving. As daylight hours shorten, taking precautions against UV radiation is still essential—enjoy the change in season while staying sun-smart! For more details on UV levels throughout the year, visit Sault Ste. Marie UV Index.
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September in Sault Ste. Marie, Canada, brings a delightful transition as summer gradually yields to autumn, offering 258 hours of sunshine. This month marks a notable decline from the sun-drenched months of July and August, which boast a peak of 347 and 320 hours, respectively. However, September’s sunlight still shines brightly compared to the earlier months of the year, eclipsing January's mere 101 hours and maintaining a robust presence as the seasons change. With the warmth lingering from summer, September invites residents and visitors alike to enjoy the golden hues of fall against a backdrop of clear skies, encapsulating a perfect blend of warmth and the onset of seasonal change.
In Sault Ste. Marie, September serves as a delightful transition into autumn, boasting a 46% chance of sunny weather. This moderate probability reflects a significant improvement from the dreariness of winter months, with February's bleak 22% chance and January’s even gloomier 18% likelihood. As summer winds down, September captures the remnants of warmth with sunshine possibilities that rival the peak summer months, only slightly reduced from the vibrant 57% of July and 49% in August. The sunshine in September often paints a picturesque backdrop for outdoor activities, making it an appealing time for residents and visitors alike to enjoy the beautiful scenery before the atmosphere shifts towards the cooler, cloudier days of fall.
As summer fades and September arrives in Sault Ste. Marie, residents experience a gradual decline in daylight, with the sun gracing the sky for 12 hours each day. This month marks a noticeable transition from the peak summer days, where daylight reaches its zenith at 15 hours in June through August. The gradual reduction in daylight hours reflects the changing seasons, drawing the curtain on the vibrant summer months and ushering in the crisp beauty of autumn. While September still offers ample daylight for outdoor activities and enjoying nature, the upcoming months will see a continued tapering to the shorter days of winter, enticing locals to savor every fleeting hour of sunlight.
In September, Sault Ste. Marie experiences a gentle average wind speed of 3.4 m/s (8 mph), marking a subtle uptick from the calmer summer months. As the seasons transition, this increase reflects nature’s shift from the warmth of summer towards the crispness of autumn. Compared to July's whispering 2.6 m/s, the wind in September carries a sense of momentum, hinting at the forthcoming changes in weather. This breeze feels invigorating, nudging the vibrant fall foliage to begin its dance, while remaining moderate enough to provide a comfortable outdoor experience. As temperatures begin to dip, September's winds are a reminder of the seasonal cycle, bridging summer's embrace and autumn's arrival.
The weather in Sault Ste. Marie 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 Sault Ste. Marie and find detailed weather information for every month.
In September, the weather is considerably milder, with temperatures ranging from a minimum of 2°C (36°F) to a comfortable maximum of 29°C (85°F). This month experiences an average temperature of 14°C (58°F) along with 114 mm (4.5 in) of precipitation spread over 13 days, creating a humid atmosphere with a humidity level of 77%. In contrast, January is characterized by much harsher conditions, where temperatures plunge as low as -34°C (-28°F) and typically remain below freezing, averaging -9°C (17°F) with a maximum of only 5°C (41°F). Despite the drastic cold, January has less precipitation at 46 mm (1.8 in) over about 10 days, but the humidity rises significantly to 95%. For more information, check out Sault Ste. Marie weather in January.
September and February present strikingly contrasting weather conditions. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 29°C (85°F), with an average of 14°C (58°F) and a relatively high humidity of 77%. The month receives approximately 114 mm (4.5 in) of precipitation over 13 days, making it a transitional period as summer wanes. In contrast, February is characterized by frigid temperatures, with lows reaching -27°C (-16°F) and an average of -8°C (17°F), peaking at just 7°C (45°F). February sees less precipitation, totaling 63 mm (2.5 in) over 12 days, but the humidity is notably higher at 94%. For a detailed look at the February weather, visit Sault Ste. Marie weather in February.
The weather in September and March presents a stark contrast, reflecting the transition from late summer to early spring. September typically enjoys milder temperatures, ranging from a minimum of 2°C (36°F) to a maximum of 29°C (85°F), with an average of 14°C (58°F). In this month, rainfall is more abundant, with around 114 mm (4.5 in) of precipitation spread over 13 days, contributing to a humidity level of 77%. In contrast, March is much colder, with temperatures plummeting to a minimum of -22°C (-8°F) and peaking at 12°C (53°F), averaging around -4°C (26°F). The precipitation in March is significantly lower at 54 mm (2.1 in) over 10 days, but the humidity is higher at 89%. For a detailed overview of Sault Ste. Marie's March weather, you can visit Sault Ste. Marie weather in March.
In comparing the weather of September and April, we see distinct seasonal contrasts. September typically features warmer temperatures, with a range from a chilly 2°C (36°F) to a pleasant 29°C (85°F), averaging around 14°C (58°F). With an average precipitation of 114 mm (4.5 in) spread over 13 days, September enjoys a relatively humid environment at 77%. In contrast, April experiences cooler conditions, with temperatures ranging from a bitter -13°C (10°F) to a milder 17°C (64°F), averaging around 2°C (37°F). Despite having slightly less precipitation at 88 mm (3.5 in) over 14 days, April's humidity is higher at 87%. For a more detailed look at April's weather conditions, you can visit Sault Ste. Marie weather in April.
In comparing the weather patterns of September and May, notable differences emerge. September features a wider temperature range, with minimums around 2°C (36°F) and maximums reaching up to 29°C (85°F), resulting in an average of 14°C (58°F). The month also brings significant rainfall, totaling 114 mm (4.5 in) and occurring over 13 days, with humidity levels around 77%. In contrast, May experiences cooler temperatures, with minimums dropping to -3°C (27°F) and maximums peaking at 26°C (79°F), leading to an average of 10°C (50°F). Precipitation is lighter in May, measuring 75 mm (2.9 in) over just 9 days and slightly lower humidity at 74%. For more detailed insights on May weather, you can check Sault Ste. Marie weather in May.
September and June offer similar high temperatures, with both months peaking at a maximum of 29°C (85°F). However, September tends to feel cooler on average, with a mean temperature of 14°C (58°F) compared to June's 16°C (61°F). Precipitation levels are also quite comparable, with September receiving 114 mm (4.5 in) over 13 days, while June sees slightly less at 113 mm (4.4 in) across 10 days. In terms of humidity, September is noticeably more humid at 77%, compared to June's 72%. For more details, check out Sault Ste. Marie weather in June.
In comparing the weather of September and July, we see notable differences in temperature, precipitation, and humidity levels. September experiences a minimum temperature of 2°C (36°F) and an average of 14°C (58°F), while July's temperatures start at a milder minimum of 9°C (49°F) and an average of 19°C (67°F). Moreover, July has a slightly higher maximum temperature of 30°C (87°F) compared to September's 29°C (85°F).
Precipitation is also higher in September, with 114 mm (4.5 inches) spread over 13 days, whereas July sees only 74 mm (2.9 inches) across 7 days. Additionally, September's humidity is noticeably higher at 77%, compared to July's 69%. For more detailed insights into July weather, you can refer to this link: Sault Ste. Marie weather in July.
In comparing the weather of September to that of August, we see several notable differences. September experiences a lower minimum temperature of 2°C (36°F) compared to August’s 6°C (44°F), indicating a shift towards cooler conditions as summer transitions to fall. While the average temperature in September drops to 14°C (58°F), August boasts a warmer average of 19°C (66°F). Surprisingly, September has slightly more precipitation with 114 mm (4.5 in) falling over 13 days, compared to August’s 112 mm (4.4 in) over 11 days. Additionally, September's humidity is higher at 77%, compared to 72% in August. For a detailed look at August weather patterns, you can refer to Sault Ste. Marie weather in August.
In September, temperatures in Sault Ste. Marie show a wide range, with a minimum of 2°C (36°F), an average of 14°C (58°F), and a maximum of 29°C (85°F). The month experiences moderate rainfall, totaling 114 mm (4.5 in) over 13 days, accompanied by a humidity level of 77%. In contrast, October ushers in cooler temperatures, with lows dropping to -8°C (19°F) and an average of 8°C (47°F), while still allowing for daytime highs of 23°C (73°F). Rainfall increases slightly, accumulating to 134 mm (5.3 in) over 16 days, and humidity rises to 85%. For more detailed information, check out Sault Ste. Marie weather in October.
September and November present strikingly different weather conditions. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 29°C (85°F), with an average of 14°C (58°F). The month experiences significant rainfall, totaling 114 mm (4.5 in) over 13 days, accompanied by a humidity level of 77%. In contrast, November sees much colder temperatures, with a minimum of -20°C (-3°F), an average of 0°C (32°F), and a maximum of 20°C (69°F). Precipitation decreases to 78 mm (3.1 in) over 15 days, but the humidity rises to 88%. For more detailed insights, check out Sault Ste. Marie weather in November.
September and December exhibit stark contrasts in weather conditions. In September, temperatures range from a mild 2°C (36°F) at night to a warm average of 14°C (58°F), peaking at a toasty 29°C (85°F). The month sees considerable rainfall, with 114 mm (4.5 in) spread over 13 days, and humidity levels at 77%, creating a generally humid atmosphere. In contrast, December plunges into winter, where temperatures can drop as low as -29°C (-20°F), with an average of -5°C (23°F) and a maximum of only 12°C (53°F). Although precipitation decreases to 67 mm (2.7 in) over 14 days, the humidity increases to a chilly 92%, adding to the cold sensation. For more details, visit Sault Ste. Marie weather in December.
As September unfolds in Sault Ste. Marie, the transition from the warmth of summer to the crispness of autumn becomes palpable. Temperatures start to cool, generating an inviting atmosphere for outdoor activities, yet the lingering warmth offers a delightful contrast to the upcoming chill. This month sees a noteworthy uptick in precipitation, with frequent rain showers refreshing the scenery and enhancing the vibrant fall colors. Coupled with a higher humidity level, September presents a unique blend of warmth and moisture that sets it apart from other months. For those looking to understand the nuances of Sault Ste. Marie's climate throughout the year, be sure to check out Sault Ste. Marie Climate.