Last updated: April 22, 2025
September in Cowichan Bay, Canada offers a delightful transition into autumn, featuring a maximum temperature reaching 29°C (84°F), while the average settles around a comfortable 15°C (60°F). The minimum temperature can dip to 8°C (47°F), showcasing the cool evenings typical of the season. With 89 mm (3.5 inches) of precipitation spread over 11 days, this month is characterized by occasional rain, contributing to a humid atmosphere with levels at 76%. This blend of warm days and refreshing rain makes September an enchanting time to experience the natural beauty of Cowichan Bay.
As September unfolds in Cowichan Bay, the lingering warmth of summer provides a gentle transition into the cooler months. With minimum temperatures averaging around 8°C (47°F) and a comfortable average of 15°C (60°F), this coastal community enjoys delightful days that can peak at a pleasant 29°C (84°F). This trend marks a soft decline from the sweltering heights of July and August, as the region gradually shifts though it remains significantly milder than the winter depths. The month showcases a serene blend of warmth and coolness, making it an ideal time for outdoor activities, enjoying scenic views, and savoring the vibrant autumnal scenery that begins to emerge.
In September, Cowichan Bay experiences a notable uptick in precipitation, with 89 mm (3.5 in) of rainfall spread over 11 days. This marks a return to wetter conditions following the drier summer months of July and August, which saw only 14 mm and 20 mm respectively. As the region transitions into autumn, the precipitation levels begin to align more closely with those of the spring season, suggesting a shift toward the peak rainfall months ahead, particularly November, which averages 206 mm. Overall, September sets the stage for this seasonal transition, reminding locals of the lush, green landscapes that the region is known for.
In Cowichan Bay, Canada's September brings a refreshing dip in humidity, averaging 76%, the lowest of the year. This marks a gradual decline from the summer months, where humidity hovered around the low 80s. As the warm season wanes, the transition is evident—not only in the air's moisture content but also in the shift from summer's heat to the crispness of autumn. Following September, humidity levels rise again in October, reaching 88%, suggesting that while summer's sultriness may fade, the region prepares for the cooler, wetter months ahead. Overall, the data illustrates a clear seasonal pattern: a high, consistent humidity in the winter, a slight dip during the summer, and a return to more humid conditions in the fall.
As summer transitions into fall, September in Cowichan Bay, Canada, reveals a UV Index of 7, which falls into the high exposure category. This marks a slight decrease from the peak summer months of June and July, when the UV Index reached a maximum of 9, signaling very high levels of sun exposure. However, compared to earlier months, such as January and February, where the UV Index was significantly lower at 2 and 3 respectively, September still invites cautious sun safety practices. With an estimated burn time of 25 minutes, it's essential to remain vigilant about sun protection during outdoor activities this month. For more detailed information, you can check the Cowichan Bay UV Index.
UV Risk Categories
As summer gently fades into autumn, September in Cowichan Bay showcases a delightful transition marked by 254 hours of sunshine. This month retains much of the vibrant warmth of summer, well above the quieter, shorter days of October. The sunshine hours have gradually increased from a modest 82 hours in January to a peak of 384 hours in July, creating a beautiful crescendo of daylight that envelops the region. Following the highs of summer, September's sunlight remains substantial, providing ample opportunities for outdoor adventures and stunning sunsets over the bay. As the season progresses toward winter, the decreasing daylight hours signal a reminder of nature's rhythm, making September a perfect time to relish in the lingering golden rays before the chill sets in.
In Cowichan Bay, Canada, September offers a 33% chance of sunny weather, marking a transition from the summer months where sunshine peaks in July at 72%. Following a consistent stretch of sunny days in July and August—both averaging around 54%—the likelihood of clear skies begins to taper off as autumn approaches. This downward trend is significant when compared to the 54% chance of sunshine in April and June, highlighting September's unique position as a bridge between the warm, vibrant summer and the cooler, cloudier months ahead. Thus, while September does offer some sunny days, particularly in the early weeks, it foreshadows the seasonal shift toward the greyer skies of fall.
As September arrives in Cowichan Bay, the length of daylight begins its gentle descent, providing approximately 12 hours of sunlit tranquility. This transition marks a continued moderation following the height of summer in July and August, where residents basked in the peak 16 hours and 14 hours of daylight, respectively. With autumn's approach, the days gradually shorten from the vibrant depths of summer towards winter's early sunsets. While the daylight in September is notably less than in the summer months, it still allows plenty of time to enjoy the changing leaves and harvest season, creating a beautiful backdrop for outdoor activities before the daylight diminishes further in October.
As summer fades and the crispness of autumn approaches, September in Cowichan Bay brings a subtle shift in the winds. With an average wind speed of 2.4 m/s (5 mph), the breezy conditions remain consistent with the gentle patterns experienced throughout the summer months. This stability hints at the transition between seasons, where the winds begin to pick up slightly in October, reaching back to 3.0 m/s (7 mph). Interestingly, the months leading up to September showcase a gradual decline in wind speed from January's 3.0 m/s down to this month's figures, highlighting a serene summer atmosphere. Yet, as nature anticipates the vibrant changes of fall, September serves as a bridge, maintaining a tranquil yet refreshing breeze that invites both locals and visitors to enjoy the beauty of Cowichan Bay.
The weather in Cowichan Bay 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 Cowichan Bay and find detailed weather information for every month.
September and January in Cowichan Bay present a striking contrast in weather patterns. September enjoys a milder climate with temperatures ranging from a minimum of 8°C (47°F) to a comfortable maximum of 29°C (84°F), accompanied by an average of 15°C (60°F). However, it experiences moderate precipitation at 89 mm (3.5 in) over 11 days, with humidity levels around 76%. In contrast, January brings much colder conditions, with temperatures plummeting to a minimum of -9°C (15°F) and averaging only 4°C (40°F), peaking at 11°C (52°F). This winter month sees significantly higher precipitation at 176 mm (6.9 in) over 15 days, coupled with increased humidity at 86%. For more detailed information on what to expect in January, you can check Cowichan Bay weather in January.
September and February present notably contrasting weather patterns. In September, temperatures range from a mild 8°C (47°F) to a warm 29°C (84°F), with an average of 15°C (60°F), making it a pleasant month to enjoy outdoor activities. However, it also brings about 89 mm (3.5 in) of precipitation over 11 days, with humidity averaging 76%. In stark contrast, February is much cooler, with temperatures dipping between -7°C (19°F) and a maximum of 11°C (53°F), averaging just 3°C (38°F). This winter month sees greater precipitation at 114 mm (4.5 in) over 15 days and higher humidity levels at 85%. For a closer look at the specifics of February weather, you can check out Cowichan Bay weather in February.
When comparing the weather in September and March, notable differences emerge. September boasts a milder range of temperatures with lows of 8°C (47°F) and highs reaching up to 29°C (84°F), while March presents a much cooler climate, with temperatures dipping as low as -2°C (29°F) and peaking at 18°C (65°F). Both months experience significant precipitation, with September receiving 89 mm (3.5 in) over 11 days and March slightly wetter at 96 mm (3.8 in) across 14 days. Additionally, March tends to be more humid, with an average humidity of 86% compared to September's 76%. For more specific insights into March weather, you can check Cowichan Bay weather in March.
When comparing the weather in September and April, we see noticeable differences in temperature and humidity. September boasts a broader temperature range, with minimums of 8°C (47°F) and maximums reaching 29°C (84°F), leading to a pleasant average of 15°C (60°F). In contrast, April temperatures are cooler, with a minimum of 2°C (35°F) and a maximum of 22°C (72°F), averaging just 9°C (48°F). Both months have similar precipitation levels, at 89 mm (3.5 in), although April experiences slightly more rainy days (13) compared to September (11). Additionally, humidity is higher in April at 86%, compared to 76% in September. For more details, you can check Cowichan Bay weather in April.
In September, the weather typically experiences a wider temperature range, with minimums around 8°C (47°F) and maximums reaching up to 29°C (84°F), resulting in an average temperature of 15°C (60°F). This month also sees more precipitation, totaling 89 mm (3.5 in) over about 11 days, coupled with a humidity level of 76%. In contrast, May is cooler, with minimum temperatures of 3°C (38°F) and maximums of 25°C (77°F), averaging at 13°C (56°F). Rainfall is significantly less in May, at 47 mm (1.9 in) over 9 days, while the humidity is slightly higher at 81%. For a detailed look at May weather patterns, check out Cowichan Bay weather in May.
September's weather is characterized by a wider temperature range, with minimums of 8°C and maximums reaching up to 29°C, averaging around 15°C. The month experiences relatively high humidity at 76% and sees about 89 mm of precipitation over 11 days. In contrast, June is typically warmer, with an average temperature of 16°C, peaking at a scorching 38°C on occasion. It has lower precipitation levels of 39 mm spread over just 7 days, and the humidity is slightly higher at 83%. For more specific details on June weather patterns, you can visit Cowichan Bay weather in June.
In comparing the weather of September and July, July tends to be warmer with average temperatures peaking at 32°C (90°F) and minimums around 11°C (52°F). In contrast, September experiences a wider range, with temperatures starting at a minimum of 8°C (47°F) and peaking at 29°C (84°F); overall, the month averages around 15°C (60°F). July also sees significantly less rainfall, with only 14 mm (0.6 in) over about 3 days, whereas September has higher precipitation levels of 89 mm (3.5 in) over 11 days. Consequently, September has a slightly higher humidity level at 76%, compared to July's 84%. To see more details on July's climate, visit Cowichan Bay weather in July.
In comparison to August, September experiences a drop in average temperatures, with minimums around 8°C (47°F) and maximums reaching 29°C (84°F), contrasted with August's minimum of 10°C (51°F) and maximum of 31°C (88°F). Additionally, September is notably wetter, receiving 89 mm (3.5 in) of precipitation over 11 days, while August is much drier with only 20 mm (0.8 in) over 4 days. Humidity levels remain quite similar, with September at 76% and August at 77%. For more detailed information on August weather, visit Cowichan Bay weather in August.
September and October exhibit a noticeable shift in weather patterns. September boasts a wider temperature range, with minimums of 8°C (47°F) and maximums reaching up to 29°C (84°F), while October sees cooler conditions, dipping to a minimum of 1°C (34°F) and a maximum of 20°C (68°F). Precipitation also increases from 89 mm (3.5 in) over 11 days in September to 123 mm (4.8 in) across 13 days in October, contributing to a more humid environment, with October's humidity rising to 88% compared to September's 76%. For more detailed insights, visit Cowichan Bay weather in October.
September's weather in Cowichan Bay presents a more temperate experience, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 29°C (84°F) and an average of 15°C (60°F). The month sees a total precipitation of 89 mm (3.5 in) over about 11 days, with humidity levels hovering around 76%. In contrast, November ushers in much cooler conditions, with temperatures dipping to a minimum of -2°C (28°F) and averaging at 7°C (45°F). The maximum temperature reaches only 15°C (60°F), accompanied by significantly higher rainfall of 206 mm (8.1 in) spread over 18 days and an increase in humidity to 87%. This stark shift in weather patterns marks a notable transition from the warm, relatively dry days of September to the colder, wetter conditions of November. For more details about the weather in this month, visit Cowichan Bay weather in November.
In September, Cowichan Bay experiences milder temperatures, with a minimum of 8°C (47°F) and an average of 15°C (60°F), peaking at a comfortable 29°C (84°F). This month sees about 89 mm (3.5 in) of precipitation over 11 days, accompanied by a humidity level of 76%. In contrast, December brings significantly cooler weather, featuring a minimum temperature of -9°C (15°F) and an average of only 4°C (40°F), with a maximum of 13°C (55°F). The month is wetter too, with precipitation reaching 184 mm (7.3 in) across 18 days and a higher humidity of 87%. For more detailed insights into December weather patterns, check out Cowichan Bay weather in December.
September in Cowichan Bay marks a notable shift in weather as summer transitions into fall. With average temperatures cooling to a comfortable 15°C, the month presents a delightful blend of warm days reaching up to 29°C and crisp evenings dipping to 8°C. The increased precipitation, totaling 89 mm over 11 days, signifies the onset of a wetter season, contrasting with the drier summer months. Humidity remains relatively high at 76%, contributing to a refreshing, albeit damp, atmosphere. This month is perfect for enjoying the striking fall foliage while experiencing the unique character of the coastal climate. For more detailed information, visit Cowichan Bay Climate.