Last updated: April 22, 2025
September in Chemainus, Canada showcases a temperature range that reflects the transition into fall, with maximums reaching a warm 31°C (88°F) and averages settling around 16°C (61°F). As the month progresses, temperatures dip to a minimum of 6°C (43°F), signaling cooler nights. While outdoor activities may continue, the area experiences 111 mm (4.4 in) of rainfall over 12 days, contributing to a humidity level of 76%. This blend of warmth and moisture creates a vibrant atmosphere as the lush landscapes prepare for the upcoming seasonal changes.
In September, Chemainus experiences a delightful shift as summer begins to wane, with temperatures that offer a pleasant blend of warmth and coolness. The month's lows hover around a mild 6°C (43°F), while the average temperature reaches a comfortable 16°C (61°F). Daytime highs can soar to a warm 31°C (88°F), creating ideal conditions for outdoor activities and enjoying the stunning natural beauty of the region. Compared to the sweltering heat of July and August, this gradual cooling marks the transition into fall, inviting residents and visitors alike to relish in the crisp air and seasonal changes. Overall, September in Chemainus balances warmth and coolness, making it a lovely time to enjoy all that this charming Canadian town has to offer.
September in Chemainus, Canada, sees a notable shift in precipitation as the dry summer months give way to wetter fall conditions. With 111 mm (4.4 in) of rainfall over 12 days, September marks a return to more frequent rain showers compared to the drier summer, where July and August each recorded only 25 mm (1.0 in) across a mere 4 days. This increase in precipitation not only replenishes local water sources but also sets the stage for the heavier rainfall that typically characterizes the following months. As October approaches, average precipitation climbs to 134 mm (5.3 in), highlighting a trend of intensifying moisture leading into the winter season.
In September, Chemainus experience a shift in humidity levels as they dip to 76%, the lowest point of the year. This decline follows a gradual decrease from the summer months, where humidity peaked at 84% in July and held steady at 77% in August. The transition into fall marks a change in the air, signaling the onset of crisper, drier conditions that contrast with the consistently high humidity of the winter months, which often hovers around 86% to 88%. This trend of decreasing humidity in early fall suggests a gradual retreat from the dampness characteristic of the coastal Canadian climate, making September a refreshing respite before the winter’s return.
As summer fades into autumn, September in Chemainus sees a slight dip in the UV Index, settling at 6, which falls under the high exposure category. This means that while the sun's rays are still potent, the burn time increases to about 25 minutes—a welcome change from the very high levels of the preceding three months, where a mere 15 minutes of exposure could lead to harmful effects. The trend showcases the gradual transition from the peak summer sun in July and August, reminding residents and visitors alike to remain vigilant about sun protection while enjoying the beautiful early fall days. For a detailed look at the UV Index throughout the year, check out Chemainus UV Index.
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In Chemainus, Canada, September marks a beautiful transition as summer gives way to autumn, with an impressive 247 hours of sunshine illuminating the landscape. After basking in the long, radiant days of summer, where July and August lead the year with 383 and 344 hours respectively, September offers a gentle decline yet remains bright and inviting. This month showcases the region's charm, as it retains a substantial amount of sunlight compared to the earlier months of the year, particularly when juxtaposed with the winter months ahead. With the most hours of sunshine typically concentrated in the mid-year, September still encourages outdoor adventures, making it a perfect time to explore the vibrant fall foliage, all while soaking up the remnants of summer’s warmth. As the season shifts, Chemainus emerges as a stunning backdrop bathed in golden rays, providing a picturesque farewell to the sunny days.
In September, Chemainus, Canada, experiences a 31% chance of sunny weather, signaling a transition toward the cooler months. This month sees a noticeable drop in sunshine compared to the peak summer months of July (68%) and August (54%), reflecting a shift in seasonal patterns. While the likelihood of clear skies is lower than in the summer, it remains significantly higher than the winter months, where sunshine dips to as low as 19% in January and 23% in December. Overall, September offers a blend of sunny days and the early whispers of autumn, making it a unique time to enjoy the natural beauty of the area before the onset of the rainier season.
As summer fades into autumn, September in Chemainus, Canada, marks a transition in daylight duration, offering about 12 hours of sunlight. This decrease from the peak 16 hours of daylight in June reflects the natural shift toward shorter days. While the days grow gradually shorter, the lingering warmth of summer can still be felt, making September an ideal time for outdoor activities. The trend of diminishing daylight will continue into October, diminishing further to 10 hours and bringing the region closer to the quiet months of winter. This rhythm of daylight not only influences the local climate but also sets the stage for the beautiful fall foliage that brightens the landscape before winter arrives.
As summer fades into autumn, September in Chemainus experiences a gentle resurgence in wind, with an average speed of 1.9 m/s (4 mph). This marks a slight increase from the calmest months of July and August, where winds dipped to 1.5 m/s (3 mph) and 1.7 m/s (4 mph), respectively. While September's breezes remain soft, they signal a transition, as the wind speeds rise again in October to 2.5 m/s (6 mph). This subtle uptick hints at the seasonal shift, as the coastal town begins to prepare for the crisp, invigorating winds of fall. Overall, September serves as a serene bridge, offering a moment of stillness before autumn’s brisk arrival.
The weather in Chemainus 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 Chemainus and find detailed weather information for every month.
When comparing the weather in September and January, it's clear that these months bring vastly different climates. September typically boasts milder temperatures, with a minimum of 6°C (43°F) and an average of 16°C (61°F), reaching a maximum of 31°C (88°F). In contrast, January experiences much colder weather, with temperatures dipping as low as -9°C (15°F) and averaging around 4°C (40°F), peaking at just 13°C (55°F). Additionally, January sees more precipitation, totaling 196 mm (7.7 in) across 15 days, compared to September's 111 mm (4.4 in) over 12 days. Humidity levels are also higher in January at 86%, compared to September's 76%. For more detailed information, you can check Chemainus weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a mild 6°C (43°F) to a warm 31°C (88°F), with an average of 16°C (61°F). This month typically sees 111 mm (4.4 in) of precipitation over 12 days, accompanied by a humidity level of 76%. Conversely, February experiences much cooler conditions, with temperatures ranging from a chilly -9°C (16°F) to a maximum of 13°C (55°F) and an average of just 4°C (39°F). This month has slightly higher precipitation at 117 mm (4.6 in) spread over 15 days and elevated humidity at 85%. For more detailed information, check Chemainus weather in February.
September and March exhibit quite distinct weather patterns. In September, temperatures range from a minimum of 6°C (43°F) to a maximum of 31°C (88°F), with an average of 16°C (61°F). The month typically sees 111 mm (4.4 in) of precipitation over about 12 days, alongside a relatively comfortable humidity level of 76%. Conversely, March experiences cooler conditions, with temperatures fluctuating between a minimum of -3°C (27°F) and a maximum of 20°C (68°F), averaging 7°C (44°F). Precipitation is similar at 107 mm (4.2 in), but it spans 15 days, and the humidity rises to 86%. For more detailed information, you can check Chemainus weather in March.
In comparing the weather of September and April, it’s evident that September typically enjoys warmer temperatures, with a minimum of 6°C (43°F) and an average of 16°C (61°F), while April has a lower minimum of 1°C (34°F) and an average of 10°C (50°F). September boasts maximum temperatures reaching up to 31°C (88°F), making it significantly warmer than April’s peak of 24°C (76°F). However, both months see a similar level of precipitation, with September receiving 111 mm (4.4 in) over 12 days and April slightly less at 104 mm (4.1 in) but over 14 days. Humidity levels are also notable, with April being more humid at 86% compared to September’s 76%. For more detailed information, you can check Chemainus weather in April.
September weather tends to offer a warmer experience compared to May, with average temperatures reaching 16°C (61°F) and maximums soaring up to 31°C (88°F). In contrast, May’s average temperature is slightly cooler at 14°C (57°F), with a maximum of 28°C (82°F). Additionally, September experiences more precipitation, averaging 111 mm (4.4 in) over 12 days, compared to May's milder 58 mm (2.3 in) over 10 days. Interestingly, humidity levels remain quite similar, with September at 76% and May at 81%. For a closer look at May weather specifics, check out Chemainus weather in May.
In comparing the weather of September and June, we see some notable differences. September features a wider temperature range, with minimums around 6°C (43°F) and maximums soaring to 31°C (88°F), resulting in an average of 16°C (61°F). This month experiences higher precipitation levels, with a total of 111 mm (4.4 in) over approximately 12 rainy days and a humidity of 76%. In contrast, June starts off with similar minimum temperatures at 6°C (44°F) but can reach much higher maximums of up to 40°C (104°F), resulting in a slightly higher average temperature of 17°C (63°F). This month sees significantly less rainfall, at 57 mm (2.2 in) over about 9 days, but has a higher humidity of 83%. For more detailed insights, you can check out Chemainus weather in June.
When comparing the weather in September and July, we see notable differences in temperature and precipitation. September experiences a broader range of temperatures, with a minimum of 6°C (43°F) and a maximum of 31°C (88°F), while July maintains milder conditions, with minimums of 10°C (50°F) and maximums reaching 34°C (93°F). Additionally, September is much wetter, receiving 111 mm (4.4 in) of rain over 12 days compared to July's 25 mm (1.0 in) across just 6 days. Both months feature relatively high humidity, with September at 76% and July slightly higher at 84%. For a closer look at July’s weather specifics, you can visit Chemainus weather in July.
In comparing the weather between September and August, we see notable differences in temperature and precipitation patterns. September experiences a wider range of temperatures, with a minimum of 6°C (43°F), an average of 16°C (61°F), and a maximum of 31°C (88°F), while August is generally warmer, starting at a minimum of 9°C (48°F) and reaching a maximum of 34°C (94°F). Additionally, September has significantly higher precipitation, totaling 111 mm (4.4 in) over 12 days, compared to August's 25 mm (1.0 in) over just 4 days. Humidity levels remain similar, with September at 76% and August slightly higher at 77%. For more detailed insights, check out Chemainus weather in August.
In September, the weather is typically warmer, featuring a minimum temperature of 6°C (43°F) and maxing out at a comfortable 31°C (88°F), with an average temperature around 16°C (61°F). However, this month also sees considerable precipitation, with 111 mm (4.4 in) over 12 days and a humidity level of 76%. As October approaches, temperatures drop significantly, with minimums reaching -2°C (29°F) and an average of 10°C (50°F), while highs are more modest at 21°C (71°F). October also sees an increase in precipitation, totaling 134 mm (5.3 in) spread over 13 days, and humidity rises to 88%. For a closer look at the weather specifics for October, you can check Chemainus weather in October.
September weather in Chemainus features a wider temperature range, with minimums of 6°C (43°F) and maximums reaching up to 31°C (88°F), providing a warm average of 16°C (61°F). However, this month also sees 111 mm (4.4 in) of precipitation across approximately 12 days, combined with a humidity level of 76%. In contrast, November brings a significant drop in temperatures, where the minimum dips to -4°C (25°F) and the average settles at a cooler 7°C (45°F), peaking at 17°C (63°F). The month experiences increased precipitation at 224 mm (8.8 in) over about 18 days and a higher humidity of 87%. For more specifics on November’s weather patterns, check out the details here: Chemainus weather in November.
September and December present striking contrasts in weather patterns. In September, temperatures range from a mild 6°C (43°F) at night to a warm 31°C (88°F) during the day, with an average of 16°C (61°F). The month experiences about 111 mm (4.4 in) of precipitation over 12 days, accompanied by a relative humidity of 76%. Conversely, December sees much colder conditions, with temperatures dropping to a minimum of -10°C (15°F) and averaging only 4°C (40°F), while reaching a maximum of 14°C (57°F). Precipitation significantly increases to 199 mm (7.8 in) over 19 days, and humidity rises to 87%. For more detailed information, you can visit Chemainus weather in December.
As September unfolds in Chemainus, the weather presents a refreshing transition from the summer heat, with temperatures that offer a pleasant average and comfortable lows. This month is characterized by its notable humidity and occasional rainy days, contributing to a vibrant, lush environment. While the maximum temperatures can still reach warm levels, the shift towards cooler nights marks the beginning of the fall season. With 12 days of precipitation, September is typically wetter than the preceding summer months, fostering the natural beauty of the region. For a deeper dive into how this month compares to others, explore the intriguing details at Chemainus Climate.