Last updated: April 22, 2025
Hornby Island, Canada experiences a mild and dynamic September, where temperatures fluctuate from a pleasant maximum of 28°C (82°F) to a cool minimum of 8°C (46°F), averaging around 15°C (59°F). This month presents a unique blend of weather patterns, with 149 mm (5.9 in) of precipitation spread across 13 days, creating a refreshing atmosphere. The island's 76% humidity adds a touch of moisture to the air, enhancing the lush surroundings and inviting nature enthusiasts to explore its scenic landscapes during this vibrant transition into autumn.
As summer transitions into fall, September temperatures on Hornby Island offer a delightful blend of warmth and crispness. The month begins with a comfortable average of 15°C (59°F), dipping to a minimum of 8°C (46°F), while reaching a pleasant high of 28°C (82°F). This slight decrease in overall temperatures signals the gradual shift towards autumn, following the warmth of August. Visitors can still enjoy relatively warm days, ideal for outdoor activities, yet should be prepared for cooler evenings as nature begins its change. The trend showcases a cozy yet invigorating atmosphere, making September an inviting time to experience the island’s scenic beauty before the colder months set in.
In September, Hornby Island experiences a notable uptick in precipitation, with 149 mm (5.9 in) of rain recorded over 13 days. This month serves as a transition from the notably dry summer months, where July and August saw just 24 mm (1.0 in) and 47 mm (1.8 in) respectively. As summer warmth gives way to autumn, the island's rainfall pattern shifts, indicating the approach of the wetter fall season ahead, particularly with October and November often observing even higher precipitation levels. This increasing trend in rainfall not only enriches the local ecosystem but prepares Hornby Island for the lush greenery characteristic of its winter months.
As summer fades into autumn, September brings a gentle shift in humidity levels on Hornby Island, with the average dropping to a comfortable 76%. This marks a continuation of the declining trend observed from August’s 77%, signaling the onset of drier conditions as the island prepares for fall. Following months of higher humidity in the early year, where levels hovered around a consistent 86% from January through April, the late summer and early autumn months offer a reprieve, creating an ideal time for outdoor activities. As October approaches, humidity is set to rise again, with forecasts suggesting a return to the more humid climate typical of early winter months, where levels climb to a notable 88%.
As September rolls in on Hornby Island, Canada, the UV Index reflects a notable transition from the peak summer months. With a UV Index of 6, classified as high, the burn time increases to about 25 minutes, urging residents and visitors to remain vigilant under the sunlight. This month maintains a moderate exposure risk, similar to April, suggesting that while summer's intensity diminishes, there's still a significant need for sun protection. Overall, September serves as a reminder of the changing seasons, balancing enjoyable outdoor activities with an awareness of UV risks. For more detailed insights, check out the Hornby Island UV Index.
UV Risk Categories
September in Hornby Island, Canada, shines as a transition month, basking in 237 hours of sunlight. As summer's warmth lingers, it stands in contrast to the peak brightness of July with its 378 hours, but still outshines the dimming days of October, which provide only 176 hours. After months of increasingly radiant days from January’s modest 69 hours to the summer's glorious heights, September showcases a vibrant farewell to summer. This gentle decline, while significant, reveals the island’s enduring charm, as the sun continues to grace the landscapes before the shorter days of autumn take hold. The gradual shift towards cooler months allows visitors to enjoy the last bursts of sunny days, making September a perfect time to experience the tranquil beauty of Hornby Island before nature settles into its serene fall slumber.
September on Hornby Island sees a 30% chance of sunny weather, marking a noticeable dip from the vibrant summer months of July and August, which boast probabilities of 72% and 57%, respectively. As the warmth of summer begins to fade, the island transitions into autumn, with a significant decrease in sunshine compared to the preceding peak months. This trend of fluctuating sunshine continues into the fall, as October further drops to 23%. Therefore, while September still offers some sun, it begins to hint at the approaching cooler season, reminding visitors to embrace the late summer days while they can.
As summer fades into autumn on Hornby Island, September marks a graceful transition in daylight duration, providing about 12 hours of sunlight. This month's daylight is a gentle decline from the 16 hours of June's peak, showcasing nature's slow shift as the days progressively shorten. Following the vibrant months of July and August, which each offered around 15 and 14 hours of light respectively, September invites a reflective mood as the island prepares for the cooler, shorter days of October. The trend reveals a gradual reduction in daylight hours from the sunny spring and summer months, wrapping up the year with a cozy atmosphere as the evenings become a touch longer and the warmth of daylight gives way to the tranquility of autumn evenings.
As summer gracefully gives way to fall, September winds on Hornby Island invigorate the landscape with an average speed of 2.2 m/s (5 mph), marking a subtle shift from the calmer breezes of the summer months. This uptick from the lows of 1.7 m/s in July and August hints at nature's transition, while still remaining softer than the gusts that will soon envelop the island in October. Observing the wind trends over the year, we see a gentle rise towards the end of the season, culminating in November's brisk 3.0 m/s (7 mph), suggesting that the island is preparing for the more vigorous winds of winter. The September breeze carries with it a refreshing promise of change, inviting both locals and visitors to embrace the beauty of the coming season.
The weather in Hornby Island 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 Hornby Island and find detailed weather information for every month.
September and January exhibit stark contrasts in weather patterns. In September, temperatures range from a minimum of 8°C (46°F) to a maximum of 28°C (82°F), with an average of 15°C (59°F). The month experiences 149 mm (5.9 in) of precipitation over 13 days, and the humidity is at a moderate 76%. In contrast, January is much colder, with temperatures ranging from a frigid -6°C (22°F) to a maximum of 10°C (50°F), averaging 4°C (40°F). This winter month sees significantly more precipitation at 266 mm (10.5 in) over 17 days, along with higher humidity at 86%. For more detailed information, you can visit Hornby Island weather in January.
In comparing the weather between September and February, it's clear that September offers a milder climate with temperatures ranging from a minimum of 8°C (46°F) and an average of 15°C (59°F) to a maximum of 28°C (82°F). In contrast, February features much colder conditions, with a minimum temperature of -6°C (22°F) and an average of only 3°C (38°F), peaking at 10°C (51°F). Interestingly, both months experience similar precipitation levels, with September receiving 149 mm (5.9 in) over 13 days and February slightly higher at 151 mm (5.9 in) across 16 days. February also has a higher humidity level at 85% compared to September's 76%, making it a notably more damp and chilly month. For a closer look at the weather specifics for February, you can check Hornby Island weather in February.
In comparing the weather between September and March, we can see notable differences. September features a milder climate with average temperatures ranging from 8°C (46°F) to a maximum of 28°C (82°F), while March is considerably cooler, with temperatures fluctuating between -2°C (29°F) and 18°C (64°F). Precipitation is comparable, with September receiving 149 mm (5.9 in) over 13 days and March experiencing slightly less at 133 mm (5.3 in) over 15 days. Additionally, humidity levels are higher in March, reaching 86% compared to 76% in September. For more details, you can check Hornby Island weather in March.
September and April present distinct contrasts in weather. In September, temperatures range from a cool 8°C (46°F) at night to a warm 28°C (82°F) during the day, averaging around 15°C (59°F). This month experiences significant rainfall, with 149 mm (5.9 in) recorded over 13 days and a humidity level of 76%. In contrast, April sees much cooler temperatures, with minima dipping to 1°C (34°F) and a maximum of only 22°C (71°F), resulting in an average temperature of 8°C (47°F). While April has slightly less precipitation at 122 mm (4.8 in) over 15 days, it boasts higher humidity at 86%. For more detailed information about April weather, check out Hornby Island weather in April.
When comparing the weather in September and May, notable differences in temperature and precipitation emerge. September tends to be warmer, with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 28°C (82°F), compared to May, where temperatures range from a minimum of 3°C (38°F) to a maximum of 25°C (78°F). Moreover, September experiences significantly more rainfall, with 149 mm (5.9 in) falling over 13 days, while May sees only 59 mm (2.3 in) over 9 days. Despite September's generally warmer temperatures, May's higher humidity level of 81% compared to September's 76% gives it a distinctly different feel. For more detailed information about weather conditions in May, you can visit Hornby Island weather in May.
In comparing the weather between September and June, both months exhibit similar average temperatures, hovering around 15°C (59°F). However, September experiences a wider range, with maximum temperatures reaching up to 28°C (82°F), while June can soar up to a sweltering 36°C (98°F). Precipitation levels are significantly higher in September, totaling 149 mm (5.9 in) over 13 days, in contrast to June's more moderate 58 mm (2.3 in) across 12 days. Additionally, humidity levels are relatively high in both months, with June at 83% and September at 76%. For more detailed insights on June weather, you can visit Hornby Island weather in June.
The weather in September tends to be cooler than in July, with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 28°C (82°F), compared to July's range from 10°C (51°F) to 31°C (88°F). Additionally, September experiences significantly more precipitation, totaling 149 mm (5.9 in) over 13 days, while July is much drier with only 24 mm (1.0 in) over 6 days. Humidity levels are similar in both months, with September at 76% and July slightly higher at 84%. For more detailed insights on July weather, you can visit Hornby Island weather in July.
In comparing the weather of August and September, September tends to be cooler and wetter. While August boasts higher average temperatures, ranging from a minimum of 10°C (51°F) to a maximum of 32°C (90°F) with an average of 19°C (66°F), September sees a drop in temperature with a range from 8°C (46°F) to 28°C (82°F), averaging at 15°C (59°F). Additionally, September experiences significantly more precipitation, with 149 mm (5.9 in) over 13 days, compared to August’s 47 mm (1.8 in) over just 6 days. Humidity levels remain relatively similar, with September at 76% and August at 77%. For more detailed information on August weather, you can visit Hornby Island weather in August.
September brings a warmer touch to the autumn months, with temperatures ranging from a minimum of 8°C (46°F) to a pleasant maximum of 28°C (82°F) and an average of 15°C (59°F). However, it also sees significant rainfall, totaling 149 mm (5.9 in) over 13 days, accompanied by a humidity level of 76%. In contrast, October ushers in a noticeable chill, with temperatures dropping to a minimum of 1°C (35°F) and averaging at 10°C (50°F), peaking at 21°C (69°F). The month experiences even more rain, with precipitation reaching 188 mm (7.4 in) over 16 days and humidity increasing to 88%. For a closer look at what to expect, check out Hornby Island weather in October.
In comparing the weather between September and November, a significant drop in temperature is evident. September enjoys milder conditions with a minimum of 8°C (46°F), averaging around 15°C (59°F), and reaching highs of 28°C (82°F). This month also experiences substantial rainfall, totaling 149 mm (5.9 in) over 13 days, with humidity levels at 76%. Conversely, November sees much cooler temperatures, with a minimum plunging to -2°C (28°F) and an average of 7°C (45°F), capping at only 14°C (57°F). The precipitation increases dramatically to 296 mm (11.7 in) spread over 19 days, and humidity rises to 87%. For more detailed insights, refer to Hornby Island weather in November.
The weather in September is generally milder, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 28°C (82°F) and an average of 15°C (59°F). This month experiences a fair amount of rainfall, totaling 149 mm (5.9 in) over approximately 13 days, with a humidity level of 76%. In contrast, December brings much cooler conditions, with temperatures dropping significantly to a minimum of -9°C (16°F) and an average of just 4°C (40°F), peaking at 11°C (53°F). The precipitation also increases in December to 262 mm (10.3 in) spread over 21 days, and the humidity rises to 87%. For more detailed information, you can refer to Hornby Island weather in December.
As September unfolds on Hornby Island, the weather showcases a delightful transition from the warm embrace of summer to the crispness of fall. While daytime temperatures can peak at a comfortable 28°C, the average slips to a cooler 15°C, providing a refreshing change ideal for outdoor explorations. Unlike the drier summer months, September sees increased precipitation across approximately half the days, contributing to the island's lush beauty. With humidity levels hovering around 76%, the air carries a slight heaviness typical of this season. For those curious about the overall climate and how it shapes the island's unique charm throughout the year, visit Hornby Island Climate.