September Weather in Charlevoix, United States

Last updated: February 24, 2025

September in Charlevoix, United States, offers a delightful mix of mild temperatures and crisp autumn air. With maximum temperatures reaching 25°C (77°F) and an average of 17°C (63°F), visitors can enjoy pleasant outdoor activities. As the month unfolds, the abundant humidity at 79% accompanies 95 mm (3.8 in) of precipitation spread over 12 days, creating a refreshing atmosphere ideal for experiencing the region's natural beauty. Whether you’re wandering through colorful fall foliage or exploring local attractions, September is a perfect time to embrace the charm of Charlevoix.

September Temperature in Charlevoix

As September arrives in Charlevoix, the transition from summer to autumn reveals a refreshing change in temperatures. The minimum temperature settles at a mild 8°C (47°F), while daytime highs reach a pleasant 25°C (77°F). This month boasts an average temperature of 17°C (63°F), striking a perfect balance for outdoor activities. Unlike the chill of the winter months, September offers a welcoming warmth, making it an ideal time to explore the scenic beauty of the region before the cooler October temperatures set in. As the leaves begin to change, the crisp air adds to the charm, hinting at the vibrant fall colors to come.

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

The chart illustrates September temperature patterns in Charlevoix, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec252531374657676863523931
Data source: Temperature data for Charlevoix 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 Charlevoix

In September, Charlevoix experiences a notable shift in weather patterns as the summer warmth begins to wane. With an average precipitation of 95 mm (3.8 in) spread over about 12 days, the month marks a transitional period, balancing the drier days of summer and the wetter seasons that follow. This rainfall is slightly above August’s levels, indicating a gradual increase as the region heads into the more temperate and often rainier months of autumn. Interestingly, September's precipitation precedes a significant jump in October, which sees a dramatic rise to 166 mm (6.5 in), hinting at the onset of fall storms. Overall, September serves as a bridge between the drier summer and the wetter fall, showcasing the region's climatic diversity.

September Precipitation Trends in Charlevoix

The chart displays monthly precipitation patterns in Charlevoix, 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.
JanFebMarAprMayJunJulAugSepOctNovDec708266100109102929096166111101
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Charlevoix

In September, Charlevoix experiences a moderate humidity level of 79%, marking a slight increase from the drier months of July and August, which recorded 75% and 76%, respectively. This shift signals the onset of autumn, where the lingering warmth of summer begins to meld with the cooler air of the approaching fall. The gradual rise from summer lows hints at a transitional climate, as the region prepares for the more humid conditions of late autumn and winter, where humidity levels climb back to the mid-80s. Overall, this trend reflects Charlevoix’s characteristic seasonal rhythm, offering a balance between the vibrancy of summer and the refreshing coolness of fall.

September Average Humidity in Charlevoix

This chart illustrates the average monthly humidity levels in Charlevoix, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%87%87%82%79%76%76%79%83%86%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Charlevoix

As summer fades and September settles in Charlevoix, the UV Index remains high at 7, reflecting a slight dip from the scorching levels of summer but still demanding attention. With a burn time of 25 minutes, outdoor enthusiasts should remain vigilant about sun protection. The transition from August’s intense days, with a UV Index of 8, signals a gradual shift in the sun's strength, encouraging a continued awareness of skin safety. This month’s UV Index aligns with the pattern of increasing exposure during the spring and summer months, before tapering off again in the fall. As you enjoy the beautiful September days, remember to check the sun’s intensity and stay protected! For more detailed information, visit Charlevoix UV Index.

Maximum UV Index Levels in Charlevoix for September

The chart shows the monthly maximum UV Index (UVI) for Charlevoix 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.
JanFebMarAprMayJunJulAugSepOctNovDec245799987532
Data source: Charlevoix 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 Charlevoix

September in Charlevoix, United States, brings a delightful transition as summer wanes, offering 279 hours of sunshine. This marks a notable decline from the peak seen in July, which boasts a dazzling 363 hours. As autumn approaches, the sunlight gently recedes, yet September still radiates more brightness than the earlier months of the year. With the sun steadily shining for over 270 hours, this month embodies a perfect blend of warm, lingering summer days and the crisp freshness of fall. It serves as a pivotal reminder of nature's rhythm, where every season awaits its turn to shine.

Monthly Sunshine Duration in Charlevoix: September Highlighted

The September sunshine duration represents the total number of hours Charlevoix 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.
JanFebMarAprMayJunJulAugSepOctNovDec83h140h228h243h305h335h363h336h279h195h127h99h
Data source: Charlevoix September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Charlevoix During September

In September, Charlevoix enjoys a promising 53% chance of sunny weather, mirroring the peak sunshine levels seen in the heart of summer. This favorable likelihood indicates a transition from the vibrant warmth of July and August, as the summer months show a consistent rise in sunshine that peaks at 53%. Following September, however, the chance of sun begins to decline significantly, with October dropping to 34% and continuing a downward trend into the chillier months. This presents September as an ideal time to relish the late-summer warmth before the cooler autumn days set in, making it a perfect month for outdoor activities and enjoying the stunning fall foliage.

Percentage of Sunny Days in September in Charlevoix

The chart illustrates the percentage of sunny days in Charlevoix 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 Charlevoix experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec8%18%39%37%50%44%53%53%53%34%28%14%
Data source: Charlevoix September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Charlevoix in September

As the summer sun begins its gentle retreat, September in Charlevoix offers a bittersweet reminder of shorter days, with 12 hours of daylight. This marks a gradual decline from the peaks of 15 hours enjoyed in June and July, maintaining a vibrant glow through early autumn. August, with its lingering warmth, sees a slight drop to 13 hours, but by September, the diminishing daylight signals the impending arrival of fall. Looking back at the year, daylight extended from a mere 9 hours in January to its summer zenith, before cascading back down to the shorter days of fall. This rhythmic pattern not only enhances the beauty of the seasons but also invites residents and visitors alike to savor every moment of the waning light.

Average Daylight Hours in Charlevoix for September

The chart illustrates the variation in daylight duration in Charlevoix throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 10m10h 24m11h 57m13h 32m14h 54m15h 35m15h 12m13h 59m12h 28m10h 53m9h 29m8h 46m
Data source: Charlevoix daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Charlevoix

In September, the winds in Charlevoix delightfully pick up with an average speed of 5.4 m/s (12 mph), a refreshing shift from the summer's calm breezes. As the season transitions, there’s a noticeable resurgence in wind strength compared to the preceding months, which hovered around 4.0 to 4.6 m/s from July to August. This slight uptick in wind speed not only invigorates the air but also heralds the onset of autumn's vibrant colors, invigorating outdoor activities and scenic views. As October approaches, winds remain relatively stable, hinting at a gradual decline in strength, setting the stage for the more blustery conditions of late fall. Overall, September serves as a delightful bridge, combining the lingering warmth of summer with a refreshing autumn breeze that invites exploration and enjoyment of Charlevoix's natural beauty.

Average September Wind Speed in Charlevoix

The chart displays monthly wind speed patterns in Charlevoix, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.66.06.25.24.64.34.04.15.4 m/s4.76.77.2
Data source: Charlevoix September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Charlevoix Compares to Other Months

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

September and January showcase vastly different weather patterns. In September, temperatures range from a mild 8°C (47°F) at night to a pleasant 25°C (77°F) during the day, with an average of 17°C (63°F). The month experiences significant precipitation, totaling 95 mm (3.8 in) across 12 days, and humidity levels are relatively high at 79%. In stark contrast, January brings much colder conditions, with temperatures plummeting to a minimum of -16°C (3°F) and peaking at a mere 7°C (45°F), resulting in an average temperature of -4°C (26°F). The total precipitation for January is lower at 70 mm (2.8 in), spread across 14 days, and humidity is even higher at 91%. For more detailed insights on January weather, visit Charlevoix weather in January.

September and February showcase stark contrasts in weather conditions. September typically enjoys milder temperatures, ranging from a low of 8°C (47°F) to a comfortable average of 17°C (63°F) and a maximum of 25°C (77°F). The month sees approximately 95 mm (3.8 in) of rainfall over 12 days and maintains a humidity level of 79%. In contrast, February presents a much harsher climate, with temperatures plummeting to a minimum of -15°C (5°F) and an average of -4°C (25°F), peaking at just 7°C (46°F). While February has a slightly lower overall precipitation of 82 mm (3.2 in) spread over 17 days, it also features higher humidity at 91%. For more details on February conditions, you can check the link Charlevoix weather in February.

In comparing the weather between September and March, it's clear that these months present stark contrasts. September boasts a mild temperature range, with a minimum of 8°C (47°F), averaging at a comfortable 17°C (63°F), and peaking at 25°C (77°F). In contrast, March experiences much colder conditions, with a minimum of -14°C (8°F) and an average temperature of -1°C (31°F), although it can reach a maximum of 15°C (60°F). Additionally, September sees higher precipitation levels at 95 mm (3.8 in) over 12 days, while March has less rainfall at 66 mm (2.6 in) also over 12 days, coupled with slightly higher humidity at 87% compared to September's 79%. For more detailed information about March weather, you can check Charlevoix weather in March.

When comparing the weather in September and April, notable differences emerge. September boasts a much warmer temperature range, with averages around 17°C (63°F) and maximums reaching 25°C (77°F). In contrast, April experiences cooler temperatures, averaging only 3°C (38°F) and peaking at 16°C (61°F). Both months have similar precipitation levels—September receives approximately 95 mm (3.8 in) over 12 days, while April has 100 mm (3.9 in) across 13 days—but April tends to be more humid, with humidity levels at 87% compared to September's 79%. For more detailed insights, check out Charlevoix weather in April.

When comparing the weather in September and May, notable differences emerge. September tends to be warmer, with average temperatures ranging from a minimum of 8°C (47°F) to a comfortable maximum of 25°C (77°F). In contrast, May starts off cooler, with temperatures dipping as low as -1°C (30°F) before peaking at 25°C (77°F); however, the average remains lower at 8°C (46°F). Precipitation levels are relatively close, with September receiving about 95 mm (3.8 in) over 12 days compared to May's 109 mm (4.3 in) spread over 10 days. Humidity is slightly higher in May at 82%, compared to 79% in September, making both months unique in their own right. For more detailed information, you can explore Charlevoix weather in May.

When comparing the weather in September and June, we see some notable similarities and differences. Both months experience similar maximum temperatures, with September reaching 25°C (77°F) and June slightly cooler at 25°C (78°F). However, June starts off with a lower minimum temperature of 4°C (40°F) compared to September's 8°C (47°F). Precipitation levels are comparable, with June receiving a bit more at 102 mm (4.0 in) over 11 days, while September has 95 mm (3.8 in) across 12 days. Interestingly, both months share a humidity level of 79%, contributing to a generally moist atmosphere. For more details on June weather, you can check Charlevoix weather in June.

When comparing the weather between September and July, notable differences emerge. September experiences a broader temperature range, with a minimum of 8°C (47°F) and a maximum of 25°C (77°F), resulting in an average of 17°C (63°F). In contrast, July sees milder nighttime temperatures with a minimum of 13°C (55°F) and a peak of 27°C (81°F), averaging at 19°C (67°F). Both months have similar precipitation levels, with September receiving 95 mm (3.8 in) over 12 days while July has slightly less at 92 mm (3.6 in) across 9 days. September's humidity is slightly higher at 79%, compared to July's 75%. For more insights on July weather, check out Charlevoix weather in July.

In comparing the weather between September and August, September experiences cooler temperatures overall, with a minimum of 8°C (47°F) compared to August’s minimum of 13°C (56°F). The average temperature in September is 17°C (63°F), slightly lower than the average of 20°C (68°F) in August. Both months see similar levels of precipitation, with September at 95 mm (3.8 in) over 12 days, closely aligning with August's 90 mm (3.5 in) over 9 days. Humidity levels are also slightly higher in September at 79%, compared to 76% in August. For those interested in a more detailed look at August weather, you can check out Charlevoix weather in August.

September weather typically features a comfortable temperature range, with minimums around 8°C (47°F) and maximums reaching up to 25°C (77°F), making it a pleasant time of year. However, it experiences moderate rainfall, averaging 95 mm (3.8 in) over about 12 days and a humidity level of 79%.

In contrast, October brings a notable shift as temperatures dip significantly, with minimums dropping to 1°C (33°F) and an average of 11°C (52°F). Although the maximum temperature can still reach 22°C (72°F), October sees an increase in precipitation, totaling 166 mm (6.5 in) across 19 days, alongside a slight rise in humidity to 83%. This shift marks a transition towards colder, wetter conditions as winter approaches. For more detailed information, check out Charlevoix weather in October.

September weather is generally milder, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 25°C (77°F) and an average of 17°C (63°F). The month sees about 95 mm (3.8 in) of precipitation across 12 days, coupled with a relatively comfortable humidity level of 79%. In contrast, November temperatures drop significantly, with a minimum of -9°C (16°F) and an average of just 4°C (39°F). Although the maximum temperature reaches up to 18°C (65°F), the month receives slightly more precipitation at 110 mm (4.3 in) over 18 days, and humidity increases to 86%. For more details on November weather in this region, visit Charlevoix weather in November.

September and December present stark contrasts in weather. In September, temperatures range from a mild minimum of 8°C (47°F) to a pleasant maximum of 25°C (77°F), with an average of 17°C (63°F). The month experiences 95 mm (3.8 in) of precipitation over approximately 12 days, alongside a relative humidity of 79%. In contrast, December features much colder conditions, with temperatures plunging to a minimum of -16°C (4°F) and an average of 0°C (31°F), peaking at only 13°C (56°F). Precipitation slightly increases to 101 mm (4.0 in) over 18 days, while humidity rises to 87%. These differences highlight the significant shift from the mild fall weather of September to the frigid winter conditions typical of December. For more details, check Charlevoix weather in December.

Compare Charlevoix's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Charlevoix

As September unfolds in Charlevoix, the weather ushers in a refreshing transition from the heat of summer to the crispness of fall. With comfortable average temperatures hovering around 17°C (63°F), the month invites outdoor exploration amidst vibrant autumn colors. Unlike the drier summer months, September experiences increased precipitation and higher humidity, with about 12 days of rain contributing to the lush landscape. This delightful blend makes for a unique experience, heralding the change of seasons. To learn more about how September fits into the broader Charlevoix climate, visit Charlevoix Climate.