September Weather in Bonavista, Canada

Last updated: April 22, 2025

In Bonavista, Canada, September brings a delightful mix of mild temperatures and increasing humidity, making it a unique time to experience the region's stunning landscapes. The maximum temperature reaches around 20°C (67°F), while the average sits at a comfortable 13°C (55°F), accompanied by a minimum of 6°C (42°F), ensuring that both warmth and crispness define this month. This period also experiences significant precipitation with 122 mm (4.8 in) of rain spread over 13 days, contributing to the lush scenery and vibrant autumn colors. With an average humidity of 88%, the air feels rich and refreshing, perfect for embracing the beauty of early fall in Bonavista.

September Temperature in Bonavista

In September, Bonavista experiences a refreshing transition into autumn, with temperatures becoming milder as summer fades. The month sees a minimum of 6°C (42°F), allowing for cool yet pleasant mornings, while daytime highs reach a comfortable 20°C (67°F). With an average temperature of 13°C (55°F), it's a time when outdoor activities become even more appealing, thanks to the gentle breeze and stunning fall foliage beginning to emerge. As September unfolds, residents and visitors alike can enjoy the crisp, invigorating air that characterizes this coastal gem, making it an ideal month for exploration and enjoyment of nature's beauty.

September Weather in Bonavista: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Bonavista, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec292629343745556055474033
Data source: Temperature data for Bonavista generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Bonavista

In September, Bonavista experiences a notable uptick in precipitation, receiving 122 mm (4.8 in) of rain over 13 days. This marks a shift from the drier summer months, particularly August, which saw just 85 mm (3.3 in). The increase in precipitation aligns with the onset of autumn, as the region transitions from the milder summer weather to the more robust rainfall characteristic of the fall. This trend suggests a gradual buildup of moisture leading into the wetter months of October and November, where precipitation is expected to fluctuate around similar levels, maintaining the cycle of nourishment for the lush landscapes surrounding Bonavista.

September Precipitation Trends in Bonavista

The chart displays monthly precipitation patterns in Bonavista, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec971039912887909385122106117127
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bonavista

In September, Bonavista experiences a slight dip in humidity, settling at a comfortable 88%. This marks a continuation of the humid summer months, with August peaking at 90%. As the year transitions from the warmer summer to the cooler fall, there is a gradual decline in moisture levels. Notably, humidity remains consistently high in the early months, hovering around the 85%-90% range from January through April. The trend reflects the unique maritime climate of Bonavista, known for rich atmospheric moisture, which begins to ease into the fall. As summer's grip loosens, the subtle drop in September's humidity sets the stage for crisp autumn days, allowing residents to enjoy the shifting seasons without the heavy humidity of summer.

September Average Humidity in Bonavista

This chart illustrates the average monthly humidity levels in Bonavista, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec85%87%88%90%89%86%89%90%88%87%85%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bonavista

As September approaches in Bonavista, Canada, the UV Index remains steady at 6, indicating a high level of sun exposure, with a burn time of just 25 minutes. This marks a gradual decline from the peak summer months, where UV values soared to 10 in June and 8 in July. As autumn sets in, residents and visitors should remain vigilant, as the early signs of fall still bring substantial sun intensity, slightly less than that experienced in August but holding steady at a substantial level. Understanding these trends is crucial for outdoor enthusiasts looking to enjoy the beautiful early autumn days while protecting their skin. For more details, check out the Bonavista UV Index.

Maximum UV Index Levels in Bonavista for September

The chart shows the monthly maximum UV Index (UVI) for Bonavista in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec2346810876421
Data source: Bonavista September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Bonavista

As summer gracefully transitions into autumn, September in Bonavista greets visitors with an inviting 243 hours of sunshine, a delightful continuation of the sun-soaked months that precede it. Following the peak sunlight of July and August, which boast an impressive 319 and 316 hours respectively, September maintains a rich luminosity, though it signals the gradual decline as the days grow shorter. This month stands out as a golden opportunity to explore the stunning landscapes and coastal beauty of the region, benefiting from the lingering warmth of summer while still enjoying the crispness of fall. With October's sunlight dipping to 185 hours, September’s embrace of sunshine becomes even more cherished, marking it as a vibrant bridge between the lushness of summer and the colorful tapestry of autumn.

Monthly Sunshine Duration in Bonavista: September Highlighted

The September sunshine duration represents the total number of hours Bonavista experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec83h138h210h213h258h277h319h316h243h185h135h91h
Data source: Bonavista September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Bonavista During September

As summer gives way to autumn, the likelihood of sunny weather in Bonavista, Canada, sees a delightful uptick in September, reaching 37%, matching the sunny probability of March and surpassing many other months. This upward trend highlights a transition from the vibrant summer months, where the chance of sunshine lingers around 30-34%, to a period where the daylight begins to wane yet still offers a significant opportunity for clear skies. Compared to the gloomier winter months, where sunny days drop to as low as 15-16%, September stands as a beacon for those seeking the last glimmers of summer before heading into the cooler and cloudier days of fall. With a prime blend of comfortable temperatures and increasing sun, September presents an ideal time for outdoor activities along Bonavista's picturesque coast.

Percentage of Sunny Days in September in Bonavista

The chart illustrates the percentage of sunny days in Bonavista throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Bonavista experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16%15%37%22%27%36%30%34%37%23%30%22%
Data source: Bonavista September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Bonavista in September

As summer transitions into autumn in Bonavista, September offers a noticeable shift in daylight, providing around 12 hours of light each day. This period marks a decline from the sun-drenched 16 hours of June, illustrating the gradual move towards shorter days. Interestingly, while daylight begins to wane, September still enjoys more light than the winter months ahead, such as October and November, which drop to 10 and 9 hours respectively. This trend underscores the lingering warmth of the late summer sun, inviting residents to savor the tail end of outdoor activities before the days continue to shorten. The gentle decrease in daylight sets the stage for the cozy, reflective months approaching.

Average Daylight Hours in Bonavista for September

The chart illustrates the variation in daylight duration in Bonavista throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 47m10h 11m11h 56m13h 43m15h 16m16h 3m15h 37m14h 14m12h 31m10h 44m9h 9m8h 20m
Data source: Bonavista daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Bonavista

As the summer fades into autumn, September in Bonavista, Canada, experiences a gentle embrace of cool, brisk winds, maintaining an average speed of 7.1 m/s (16 mph). This marks a slight but notable consistency with the lighter winds of August, signaling a transition without abrupt shifts. Throughout the year, Bonavista's wind patterns reveal a cyclical nature, starting strong in the winter months before gradually softening into the summer. However, as fall approaches, the winds begin to pick up again, with October bringing a refreshing increase to 8.4 m/s (19 mph). This trend emphasizes the region's dynamic climate, where each season contributes to the rich tapestry of coastal experiences, inviting both locals and visitors to revel in the winds that tell the story of Bonavista's rugged beauty.

Average September Wind Speed in Bonavista

The chart displays monthly wind speed patterns in Bonavista, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec8.19.38.88.27.16.86.47.17.1 m/s8.48.510.7
Data source: Bonavista September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Bonavista Compares to Other Months

The weather in Bonavista 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 Bonavista and find detailed weather information for every month.

September and January present stark contrasts in weather conditions. In September, temperatures range from a minimum of 6°C (42°F) to a maximum of 20°C (67°F), with an average of 13°C (55°F), while January sees much colder temperatures, plummeting to a minimum of -11°C (13°F) and reaching a maximum of 8°C (47°F), averaging at -2°C (29°F). Additionally, September experiences higher precipitation levels of 122 mm (4.8 in) over 13 days, compared to January’s 97 mm (3.8 in) spread over 14 days. Humidity is slightly higher in September at 88%, whereas January maintains a moderate humidity level of 85%. For a detailed look at January conditions, visit Bonavista weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a mild 6°C (42°F) at night to a comfortable 20°C (67°F) during the day, with an average of 13°C (55°F). This month sees a fair amount of rainfall, with about 122 mm (4.8 in) spread over 13 days and a humidity level of 88%. On the other hand, February is much colder, with minimum temperatures plunging to -15°C (5°F) and a maximum of just 7°C (45°F), averaging -3°C (26°F). Precipitation is slightly lower at 103 mm (4.1 in), but it falls over 15 days, and the humidity remains high at 87%. For more specific details, you can check Bonavista weather in February.

When comparing the weather in September and March, significant differences are evident. September experiences milder temperatures, with a minimum of 6°C (42°F), an average of 13°C (55°F), and a maximum of 20°C (67°F). In contrast, March is much colder, with temperatures ranging from a minimum of -12°C (10°F) to a maximum of 8°C (46°F) and an average of -2°C (29°F). Both months see approximately 13 days of precipitation, but September has a higher total rainfall of 122 mm (4.8 in) compared to March's 99 mm (3.9 in). Interestingly, despite their differing temperatures and precipitation patterns, both months share similar humidity levels at 88%. For more detailed information on March weather specifically, you can check Bonavista weather in March.

When comparing September and April weather, September generally offers milder temperatures, with averages around 13°C (55°F) and maximums reaching 20°C (67°F), compared to April's cooler averages of 1°C (34°F) and peaks of just 7°C (45°F). While both months experience similar levels of precipitation—122 mm (4.8 in) in September and 128 mm (5.1 in) in April—they differ slightly in the number of rainy days, with September having 13 days and April 14 days. Additionally, humidity levels are quite high in both months, with September at 88% and April slightly higher at 90%. For a deeper look into April’s weather specifics, you can check out Bonavista weather in April.

September and May present contrasting weather patterns. In September, temperatures are generally milder, with average highs reaching 20°C (67°F), while May struggles with cooler temperatures, averaging only 14°C (57°F) at its peak. Rainfall in September is more significant, with 122 mm (4.8 in) across 13 days, compared to May's 87 mm (3.4 in) over 12 days, hinting at September's wetter conditions. Humidity remains high in both months, with September at 88% and May slightly higher at 89%. For a closer look at the weather specifics in May, visit Bonavista weather in May.

When comparing the weather of September and June, it’s clear that September boasts warmer temperatures, with averages reaching 13°C (55°F), peaking at 20°C (67°F). In contrast, June has slightly cooler temperatures; the average is only 7°C (45°F), with a maximum of 18°C (65°F). Despite having nearly the same number of precipitation days, September sees a greater total rainfall of 122 mm (4.8 in) compared to June's 90 mm (3.5 in). Additionally, September features higher humidity at 88%, while June remains slightly lower at 86%. For more detailed insights, check out Bonavista weather in June.

In comparing the weather of September and July, we see that both months have similar average temperatures, with July experiencing slightly warmer conditions, as evidenced by a maximum of 21°C (70°F) compared to September's 20°C (67°F). The minimum temperatures are nearly identical, with July starting at 5°C (42°F) and September slightly higher at 6°C (42°F). Precipitation is notably higher in September, with 122 mm (4.8 in) over 13 days, compared to July's 93 mm (3.6 in) over 12 days. Both months also share high humidity levels, hovering around 88% in September and 89% in July. For those interested in more detailed information, visit Bonavista weather in July.

September weather is notably cooler than August, with average temperatures dropping from 16°C (61°F) in August to 13°C (55°F) in September. The minimum temperature in September reaches 6°C (42°F), compared to a milder minimum of 10°C (51°F) in August, while the maximum temperature in September averages just 20°C (67°F), significantly lower than August's 24°C (75°F). Additionally, September experiences more rainfall, with 122 mm (4.8 in) over 13 days, compared to 85 mm (3.3 in) over 11 days in August. Humidity levels remain high in both months, at 88% for September and 90% for August. For a more detailed look at August weather, you can visit Bonavista weather in August.

In comparing the weather between September and October, September tends to be milder, with average temperatures around 13°C (55°F) and maximums reaching up to 20°C (67°F). In contrast, October sees a significant drop in average temperatures to about 8°C (47°F), with minimums plummeting to 2°C (35°F). Precipitation is slightly lower in October at 106 mm (4.2 in), although it occurs over more days (15) compared to September's 122 mm (4.8 in) over 13 days. Humidity levels are quite similar, hovering around 88% in September and slightly decreasing to 87% in October. For more detailed information on October weather in Bonavista, you can check Bonavista weather in October.

September weather is characterized by relatively mild temperatures, with a minimum of 6°C (42°F) and a maximum reaching up to 20°C (67°F), making it a transition month into autumn. The average temperature sits at 13°C (55°F) and the month experiences significant precipitation, totaling 122 mm (4.8 in) over 13 days, accompanied by high humidity at 88%. In contrast, November sees a notable drop in temperatures, with minimums dipping to -5°C (24°F) and an average of just 4°C (40°F). The maximum temperature in November reaches about 13°C (56°F), while precipitation slightly decreases to 117 mm (4.6 in) across 14 days, resulting in a slightly lower humidity level of 85%. This shift from mild September to the chill of November highlights the transition into the depths of winter. For more specifics on November conditions, you can visit Bonavista weather in November.

In September, temperatures are milder, ranging from a minimum of 6°C (42°F) to a maximum of 20°C (67°F), with an average of 13°C (55°F). The month sees 122 mm (4.8 in) of precipitation spread over 13 days, and humidity levels are relatively high at 88%. In contrast, December brings much colder weather, with temperatures dipping down to a minimum of -8°C (18°F) and an average of just 1°C (33°F). Although December experiences slightly more precipitation at 127 mm (5.0 in) over 19 days, humidity remains lower at 85%. For a detailed look at December weather in Bonavista, check out Bonavista weather in December.

Compare Bonavista's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Bonavista

As summer transitions to autumn in Bonavista, September brings a refreshing shift in weather patterns. The month showcases a cooler average temperature, making it noticeably brisk compared to the warm months of July and August. With increased precipitation, including about half of the month experiencing rainy days, it's essential to be prepared for the elements. Humidity tends to stay high, contributing to the overall chill in the air. This change encourages the vibrant fall foliage to emerge, contrasting with the lush greens of summer. For more insights into the region's climate, explore Bonavista Climate.