Last updated: March 24, 2025
September in Cogne, Italy offers a remarkable transition into autumn, with temperatures ranging from a maximum of 19°C (67°F) to a minimum of -6°C (22°F). The average temperature hovers around 8°C (46°F), making it a crisp and refreshing time to explore the breathtaking alpine scenery. Visitors can expect 85 mm (3.4 in) of precipitation over 16 days, adding a lush vibrancy to the landscape. With humidity levels at 73%, this month beautifully captures the essence of the changing seasons, making it an ideal time for nature enthusiasts and outdoor adventurers.
In Cogne, Italy, September marks the transition from the warmth of summer to the cool embrace of autumn. With temperatures ranging from a minimum of -6°C (22°F) to a pleasant average of 8°C (46°F), the month offers a refreshing break from the heat. The daytime highs peak at 19°C (67°F), making it a lovely time for outdoor adventures amidst the stunning alpine scenery. This cooling trend from the balmy summer reflects a gradual descent as the region prepares for the onset of winter, with the average temperature noticeably dropping from the preceding months. As September unfolds, residents and visitors alike can enjoy the crisp air and vibrant autumn hues, heralding a picturesque season in the heart of the Italian Alps.
In September, Cogne, Italy, experiences a notable shift in precipitation, receiving an average of 85 mm (3.4 in) over the month, which is a decrease compared to the preceding summer months. Rainfall is spread across approximately 16 days, allowing for a balanced distribution that softens the transition into autumn. While July and August see heavier rain at 138 mm (5.4 in) and 157 mm (6.2 in) respectively, September marks a gentle decline, hinting at the approaching drier October, which typically averages 154 mm (6.1 in) with fewer rain days. This trend showcases September as a transitional month, where the lingering summer moisture gradually gives way to the crisp, clear days of fall, setting the stage for a colorful seasonal shift.
In September, Cogne, Italy, experiences a notable shift in humidity, dropping to a comfortable 73% from August's 63%. As summer fades, the air retains a pleasant moisture level, offering a transitional feel that prepares residents and visitors alike for the upcoming autumn. This month marks a subtle increase from the drier July and August, yet remains far lower than the peak winter months, where humidity can soar to 91% in January and 90% in December. The gradual decrease in humidity from earlier in the year reflects a cooling trend, making September an inviting time to enjoy Cogne’s breathtaking landscapes without the heaviness of summer’s mugginess.
As summer transitions into fall, September in Cogne, Italy, showcases a UV Index of 8, indicating a very high exposure level that requires attention. After the peak of summer, which saw extreme UV levels in June and July, the index settles into a similar pattern observed in the earlier months, with a notable decrease from August's 10. Despite this slight dip, sun protection remains essential, as the burn time is still a brisk 15 minutes. This trend underlines the importance of vigilance against sun exposure even as the season shifts. For more detailed information, check out the Cogne UV Index.
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Cogne, Italy, basks in a remarkable September sunshine that showcases a stunning transition into autumn. With 329 hours of daylight, this month continues the trend established by a sun-drenched summer, peaking in July with 424 hours. As nature hints at the approaching chill, September’s sunlight remains generous, offering a gentle decline from the intense summer brightness. Moving further into autumn, as reflected in October’s 290 hours, the days grow shorter, but the lingering warmth and golden hues of early fall make September a perfect time to explore the beauty of the Alps. The month is a serene bridge, where the fading summer light dances with the early whispers of autumn, inviting visitors to relish the unique charm of Cogne.
In Cogne, Italy, the likelihood of sunny weather shows distinct seasonal trends throughout the year. While August boasts the highest chance of sunshine at 53%, the sunny appeal dwindles as summer fades. September sees a sharp decline, with only a 24% chance of clear skies, making it one of the cloudier months. Following September, however, the odds of sunshine pick up again in October at 42%, suggesting a more favorable outlook as autumn unfolds. This pattern indicates that while late summer may be the pinnacle of sunny days, early autumn experiences a temporary lull before brighter days reemerge later in the fall.
As the summer warmth gradually fades, September in Cogne, Italy, showcases a delightful transition with 12 hours of daylight. Following a peak at 15 hours during the sun-drenched months of June and July, the days begin to shorten, paving the way for the crisp autumn air. This month serves as a gentle reminder of the changing seasons, with daylight diminishing steadily as we move towards October's 10 hours. The gradual decrease from August’s 14 hours hints at the lush landscapes settling into their fall hues, inviting both locals and visitors to relish the remaining golden days of summer before the chill of winter takes hold.
As September unfolds in Cogne, Italy, the winds begin to ease, showcasing an average speed of just 1.2 m/s (3 mph). This gentle breeze marks a notable transition from the summer months, where winds consistently hovered around 1.3 m/s (3 mph) in August and July. Following the seasonal pattern, September’s wind tends to be slightly calmer than earlier months, transitioning toward the crispness of autumn, yet still reminiscent of the warmth of summer. This subtle shift in wind speed suggests a tranquil environment perfect for embracing the stunning fall foliage and the serene beauty of the Italian Alps. As the year progresses, we can anticipate a gradual return to the brisker winds of winter, but for now, September invites you to enjoy its soothing breezes and idyllic landscapes.
The weather in Cogne 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 Cogne and find detailed weather information for every month.
In September, temperatures range from a chilly -6°C (22°F) to a pleasant 19°C (67°F), with an average of 8°C (46°F). The month sees about 85 mm (3.4 in) of precipitation over 16 days, accompanied by a humidity level of 73%. In contrast, January brings much colder conditions, with temperatures dipping significantly, from a low of -24°C (-11°F) to a max of just 3°C (37°F), averaging -9°C (16°F). Although January receives more precipitation totaling 108 mm (4.2 in), it tends to rain on only 9 days, with a higher humidity of 91%. For a deeper insight into January weather specifics, you can visit Cogne weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a minimum of -6°C (22°F) to a maximum of 19°C (67°F), with an average of 8°C (46°F). The month experiences about 85 mm (3.4 in) of precipitation across 16 days, accompanied by a humidity level of 73%. In contrast, February is significantly colder, with temperatures dipping as low as -21°C (-6°F) and peaking at only 8°C (47°F), averaging -6°C (22°F). This month sees less precipitation at 67 mm (2.6 in) over 11 days but experiences higher humidity at 87%. For more detailed insights, you can checkCogne weather in February.
In comparing the weather between September and March, it is evident that March experiences significantly colder temperatures, with a minimum of -24°C (-11°F) and an average temperature of -4°C (25°F), compared to September's milder range of -6°C (22°F) to 19°C (67°F). Precipitation is slightly higher in March at 104 mm (4.1 in) over 14 days, compared to September's 85 mm (3.4 in) over 16 days. Additionally, March has a higher humidity level of 84%, while September's humidity sits at 73%. For more detailed information, you can check this link: Cogne weather in March.
When comparing the weather in September and April, a noticeable contrast emerges. September experiences a milder average temperature of 8°C (46°F), with maximums reaching 19°C (67°F), while April's average temperature drops significantly to 0°C (32°F), with highs only reaching 12°C (53°F). Although September has slightly less precipitation at 85 mm (3.4 in) over 16 days, April sees a higher total of 123 mm (4.8 in) across 12 days, indicating that it is generally wetter despite having fewer rainy days. Additionally, humidity levels are relatively high in both months, with September averaging 73% and April slightly higher at 83%. For more detailed information on April weather, you can check Cogne weather in April.
When comparing the weather in September and May, significant differences emerge in both temperature and precipitation. September typically experiences milder conditions with average temperatures ranging from a minimum of -6°C (22°F) to a maximum of 19°C (67°F), while May tends to be slightly cooler on average, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 17°C (63°F). However, May sees a notably higher rainfall, with a total of 171 mm (6.7 in) spread over 18 days, compared to September's 85 mm (3.4 in) across 16 days. This contributes to a higher humidity level in May at 78%, compared to September's 73%. For more detailed information, you can check Cogne weather in May.
When comparing the weather in September and June, several notable differences emerge. September typically experiences a broader temperature range, with minimum temperatures dropping to -6°C (22°F) and maximums reaching up to 19°C (67°F), resulting in an average of 8°C (46°F). In contrast, June sees milder temperatures, featuring a minimum of -3°C (27°F) and a maximum of 25°C (77°F), with an average of 10°C (50°F).
In terms of precipitation, June tends to be wetter, accumulating 166 mm (6.5 in) of rain over 21 days, compared to September's 85 mm (3.4 in) over 16 days. The humidity levels are relatively similar, with September at 73% and June slightly higher at 75%. For those interested in exploring the climate in more detail, additional information can be found here: Cogne weather in June.
When comparing the weather in September and July, we observe notable differences in temperature and precipitation. September experiences a cooler temperature range, with minimums dropping to -6°C (22°F) and maximums reaching only 19°C (67°F), contrasted with July's milder temperatures, which span from 2°C (35°F) to a maximum of 22°C (72°F). Additionally, September has lower precipitation levels, receiving 85 mm (3.4 in) over 16 days compared to July's 138 mm (5.4 in) across 17 days. Despite this, both months maintain similar humidity levels, hovering around 72-73%. For more details on July weather patterns, check out Cogne weather in July.
In September, temperatures cool significantly compared to August, with a minimum of -6°C (22°F) and an average of 8°C (46°F), while August boasts higher temperatures, ranging from a minimum of 1°C (33°F) to an average of 12°C (53°F). The maximum temperature in September reaches 19°C (67°F), which is noticeably lower than August's peak of 22°C (73°F). Precipitation also decreases, with September receiving 85 mm (3.4 in) over 16 days, compared to August's 157 mm (6.2 in) across 17 days. Furthermore, September's humidity levels are higher at 73%, compared to the more comfortable 63% in August. For a detailed look at the August weather, visit Cogne weather in August.
As September transitions into October, the weather experiences a notable shift. September showcases a temperature range from a minimum of -6°C (22°F) to a maximum of 19°C (67°F), averaging around 8°C (46°F). This month typically has 85 mm (3.4 in) of precipitation over 16 days, with humidity levels at 73%. In contrast, October brings cooler temperatures, with a minimum of -7°C (20°F) and an average of 3°C (38°F), peaking at 16°C (60°F). Rainfall increases significantly, totaling 154 mm (6.1 in) over just 10 rainy days, while humidity rises to 89%. For a more in-depth look at weather patterns during this time, visit Cogne weather in October.
In September, the weather is noticeably milder, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 19°C (67°F), averaging 8°C (46°F). This month sees 85 mm (3.4 in) of precipitation over 16 days, accompanied by a humidity level of 73%. In contrast, November brings much colder temperatures, with a minimum of -21°C (-6°F) and an average of -3°C (27°F), peaking at 12°C (54°F). Rainfall increases significantly to 158 mm (6.2 in) across 14 days, with humidity rising to 90%. For more detailed insights on November weather, visit Cogne weather in November.
September weather is characterized by milder temperatures, with averages around 8°C (46°F) and maximums reaching up to 19°C (67°F). The month experiences a total precipitation of 85 mm (3.4 in) over about 16 days, accompanied by a moderate humidity of 73%. In contrast, December brings a significant drop in temperatures, with an average of -8°C (19°F) and highs only reaching up to 3°C (38°F). Additionally, December sees increased precipitation of 139 mm (5.5 in) over 15 days and a higher humidity level of 90%. For more details on the winter conditions, you can check Cogne weather in December.
As September unfolds in Cogne, the weather begins to transition from the warmth of summer to the crispness of autumn. This month typically showcases cooler averages, with temperatures dipping to a refreshing 8°C (46°F) and occasional highs reaching 19°C (67°F). While the landscape bursts into vibrant fall colors, visitors may encounter more frequent rains, with precipitation over 16 days bringing about 85 mm (3.4 in) of moisture. The heightened humidity of 73% adds to the invigorating feel of the air, distinguishing September as a time of vibrant change. For those intrigued by Cogne’s unique climate patterns and how they evolve throughout the year, you can explore more about the region in our detailed guide on Cogne Climate.