Last updated: February 26, 2025
In September, Annecy, France experiences a diverse range of weather conditions that beautifully reflect the transition from summer to autumn. With maximum temperatures reaching 26°C (80°F) and an average temperature of 14°C (57°F), the days are still pleasantly warm, while nighttime can dip to a cool 0°C (33°F), inviting cozy evenings. This month sees 86 mm (3.4 in) of rainfall spread over 11 days, contributing to the region’s lush landscapes and vibrant fall colors. Humidity levels hover around 73%, adding a slight chill to the air and creating a refreshing atmosphere for both locals and visitors alike.
In September, Annecy experiences a delightful transition from summer warmth to the coolness of autumn. With minimum temperatures around 0°C (33°F) and average highs reaching 26°C (80°F), this month strikes a perfect balance for outdoor activities. The pleasant 14°C (57°F) average invites both locals and tourists to explore the stunning landscapes and vibrant cultural scenes. As the month progresses, the lingering warmth begins to hint at the cooler days ahead, making September an ideal time to enjoy the last of the summer sun before the crispness of fall settles in. Whether you're hiking in the nearby mountains or strolling along the beautiful lake, the comfortable temperatures create a captivating backdrop for your Annecy adventures.
As September arrives in Annecy, the summer warmth begins to wane, accompanied by a noticeable shift in precipitation patterns. With an average of 86 mm (3.4 in) of rainfall over 11 days, September marks a transition to the wetter fall season, although it remains drier than the preceding months of May and June. This month typically sees a gentle breeze carrying the last whispers of summer, contrasting with the higher rainfall totals experienced earlier in the year, such as May's 199 mm (7.8 in). The gradual reduction in precipitation signals the onset of autumn, as the vibrant green landscape prepares for the rich hues that characterize the months ahead.
As autumn begins to settle in Annecy, France, September ushers in a mild humidity level of 73%. This marks a slight increase from the summer months, where humidity levels dipped to a comfortable 63% in August. The trend over the year reveals a gradual rise in humidity as the seasons shift; starting from a peak of 91% in January, humidity consistently decreases until reaching its low in July. However, as September approaches, the air begins to retain more moisture, signaling the start of the wetter months ahead. By October, humidity rises significantly to 89%, indicating a transition back to the more humid conditions characteristic of Annecy during fall and winter months. This cyclical pattern of humidity reflects the region's climate as it gracefully adapts to the changing seasons.
In September, Annecy experiences a UV Index of 7, indicating a high risk of harm from unprotected sun exposure. With a burn time of just 25 minutes, it's essential to take precautions, especially since the summer's peak UV levels of 9 and 10 begin to wane, yet remain potent. This transitional month reflects a gradual decline in UV intensity from the previous months, signaling the arrival of autumn while still retaining enough sun strength to warrant vigilance. As you enjoy the beautiful landscapes and cooler temperatures, remember that sun protection is still vital. For more details on UV trends throughout the year, visit Annecy UV Index.
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As September arrives in Annecy, France, the lingering warmth of summer continues to embrace the region, offering a delightful 329 hours of sunshine. This month marks a graceful transition, showcasing a decline from the peak brightness of July with its impressive 418 hours, yet still generous compared to the cooler months ahead. The sunshine gradually recedes into the autumn months, as October forecasted to drop to 286 hours, evokes a sense of change. September's ample sunlight allows for the vibrant colors of fall to emerge, creating a picturesque backdrop for outdoor adventures and leisurely strolls along the lake. As the days shorten, the golden rays of sunshine serve as a fond farewell to summer, inviting residents and travelers alike to savor the last warm days before winter approaches.
As September rolls into Annecy, France, the likelihood of sunny weather remains quite favorable, with a 39% chance of sunshine. This is in line with the summer months, where the sun is more likely to make an appearance, peaking in August at 48%. Interestingly, September's sunshine probability closely mirrors that of both June and July, suggesting that while the peak summer heat may wane, the skies still hold promise for those hoping to bask in the late summer sun. As the seasons transition, locals and visitors alike can anticipate a delightful blend of warmth and refreshing autumn breezes, making September a lovely time to enjoy the charm of Annecy under partly sunny skies.
As summer gives way to autumn, September in Annecy, France, showcases a gradual yet noticeable shift in daylight, with 12 hours of light illuminating the charming landscape. Following the peak of 15 hours in June and July, the days begin to shorten, hinting at the impending arrival of fall. This transition signals a gentle retreat from the sunny excess of summer, offering a perfect opportunity to enjoy the milder temperatures and vibrant foliage. With daylight waning but still abundant, September invites both locals and tourists to savor the beauty of Annecy's scenic vistas during these beautifully balanced days.
As September arrives in Annecy, France, the gentle whispers of the wind begin to lull the lakeside town into a serene autumn embrace. With an average wind speed of just 1.2 m/s (3 mph), the breezy conditions are at their calmest this month, reflecting a subtle transition from the warmer summer months. Notably, September marks a decline from the slightly breezier spring and summer, where winds trended upwards, peaking in April at 1.8 m/s (4 mph). This softening of the winds heralds shorter days and cooler temperatures, setting the stage for the vibrant colors of fall that will soon grace the landscape. As life in Annecy slows down to savor the changing season, the tranquil winds carry with them the promise of autumn's beauty.
The weather in Annecy 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 Annecy and find detailed weather information for every month.
In September, the weather is generally mild, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 26°C (80°F) and an average of 14°C (57°F). This month sees around 86 mm (3.4 in) of precipitation over about 11 days, accompanied by a moderate humidity level of 73%. Conversely, January experiences much colder conditions, with temperatures plummeting to a minimum of -19°C (-1°F) and an average of -1°C (30°F), peaking at only 11°C (51°F). This winter month brings more precipitation, totaling 130 mm (5.1 in) over the same 11 days, and the humidity rises to 91%. For more detailed information on January weather, visit Annecy weather in January.
September and February present distinctly different weather patterns. In September, temperatures experience a broader range, with a minimum of 0°C (33°F), averaging 14°C (57°F), and peaking at 26°C (80°F). The month is relatively mild, though it does see an average precipitation of 86 mm (3.4 in) over about 11 days, accompanied by a humidity level of 73%. In contrast, February is characterized by much colder temperatures, with a minimum of -15°C (5°F) and an average of just 2°C (36°F), although it can rise to a maximum of 17°C (63°F). Precipitation is slightly higher at 112 mm (4.4 in), also spread over 11 days, but the humidity rises to 87%. For a more detailed look at weather conditions in February, visit Annecy weather in February.
When comparing the weather in September and March, notable differences emerge. September enjoys milder temperatures, with averages around 14°C (57°F) and maximums reaching 26°C (80°F), while March is chillier, with average temperatures hovering at 5°C (41°F) and maximums of only 19°C (67°F). Additionally, March tends to be wetter, with higher precipitation levels of 154 mm (6.1 in) over 15 days, compared to September's 86 mm (3.4 in) across 11 days. Humidity is quite high in both months, but March exhibits slightly greater humidity at 84% versus September's 73%. For a closer look at March weather in the region, you can explore Annecy weather in March.
In comparing the weather of September and April, September boasts a milder average temperature of 14°C (57°F), with maximums reaching up to 26°C (80°F), making it a warmer month overall. In contrast, April experiences cooler temperatures, with an average of 8°C (47°F) and maximums around 23°C (75°F). Precipitation levels are slightly higher in September at 86 mm (3.4 in) compared to April's 77 mm (3.0 in), though both months see a similar number of rainy days, with 11 in September and 10 in April. Additionally, September has a lower humidity level of 73% compared to April's 83%, contributing to a distinct difference in the overall feel of the two months. For a detailed look at April's weather, check out Annecy weather in April.
When comparing the weather in September and May, notable differences emerge. September typically offers a milder average temperature of 14°C (57°F), peaking at a comfortable maximum of 26°C (80°F). In contrast, May sees a slightly lower average temperature of 12°C (53°F), with maximums reaching up to 28°C (82°F). Precipitation is more significant in May, with 199 mm (7.8 in) spread across 18 days, compared to September's 86 mm (3.4 in) over 11 days. Additionally, humidity levels are slightly higher in May at 78%, compared to 73% in September. For a detailed look at May's climate, you might want to check Annecy weather in May.
When comparing the weather in September and June, September tends to be cooler with an average temperature of 14°C (57°F), while June is warmer, averaging 16°C (62°F). June also experiences higher maximum temperatures, reaching up to 32°C (91°F), compared to September's maximum of 26°C (80°F). Precipitation is more pronounced in June, with 155 mm (6.1 in) over 15 days, compared to September's 86 mm (3.4 in) over 11 days. Both months have similar humidity levels, with September at 73% and June slightly higher at 75%. For a more detailed look at June weather, you can visit Annecy weather in June.
In comparing the weather between July and September, it's evident that July experiences warmer temperatures, with minimums around 7°C (44°F) and daytime highs reaching up to 33°C (91°F), contributing to an average temperature of 18°C (65°F). In contrast, September offers a cooler climate, with temperatures ranging from a brisk 0°C (33°F) at night to a mild maximum of 26°C (80°F) and an average of 14°C (57°F). July also sees slightly more precipitation, totaling 118 mm (4.6 in) across 14 wet days, compared to September's 86 mm (3.4 in) over 11 days. Humidity levels remain relatively consistent, at about 72% in July and 73% in September. For more details on the July weather specifics, you can check Annecy weather in July.
In comparing the weather of September and August, we see notable differences in temperature and precipitation patterns. September experiences cooler temperatures, with a minimum of 0°C (33°F) and an average of 14°C (57°F), while August is warmer, starting from a minimum of 6°C (43°F) and averaging around 18°C (64°F). Additionally, August tends to be drier, with 121 mm (4.8 in) of precipitation over 13 days, compared to September's 86 mm (3.4 in) over 11 days. Furthermore, September has higher humidity at 73%, whereas August maintains a lower humidity level of 63%. For more detailed weather information, you can check out Annecy weather in August.
September and October present a noticeable transition in weather conditions. September enjoys milder temperatures with a minimum of 0°C (33°F) and a maximum of 26°C (80°F), while October is cooler, featuring minimum temperatures dropping to -3°C (27°F) and an average high of just 21°C (71°F). Rainfall also increases from 86 mm (3.4 in) in September to 121 mm (4.8 in) in October, although the number of rainy days remains consistent at 11. Additionally, humidity rises from 73% in September to 89% in October, indicating a shift towards a more damp and cooler atmosphere. For more insights on October weather specifics, you can refer to Annecy weather in October.
September and November present contrasting weather patterns. In September, temperatures range from a minimum of 0°C (33°F) to a pleasant maximum of 26°C (80°F), with an average of 14°C (57°F). The month sees moderate precipitation of 86 mm (3.4 in) spread over 11 days and a humidity level of 73%. Conversely, November is notably cooler, with temperatures dipping to a minimum of -7°C (19°F) and averaging around 4°C (39°F), while the maximum temperature reaches 18°C (65°F). This month experiences more substantial rainfall, totaling 117 mm (4.6 in) over 12 days, coupled with increased humidity at 90%. For more detailed information, you can check Annecy weather in November.
In comparing the weather between September and December, we see a stark transition in temperatures and conditions. September boasts milder temperatures, with averages around 14°C (57°F) and a maximum of 26°C (80°F), while December experiences a chillier climate, averaging 0°C (33°F) and peaking at just 12°C (53°F). Additionally, precipitation increases significantly from 86 mm (3.4 in) over 11 days in September to 239 mm (9.4 in) across 18 days in December. The humidity also rises, reaching 90% in December compared to 73% in September, contributing to a more damp and colder atmosphere. For more detailed information, you can check Annecy weather in December.
As summer gives way to autumn, September in Annecy offers a refreshing change in weather. Visitors can expect pleasant daytime temperatures, contrasting with cooler nights that hint at the approaching chill of fall. While occasional rain (approximately 11 days) adds a touch of moisture to the landscape, it also brings a vibrant burst of colors to the surroundings. With a moderate humidity level, the air feels crisp and invigorating, making it an ideal time for outdoor activities. For those keen on understanding the broader climate trends, more detailed insights can be found at Annecy Climate.