Last updated: March 24, 2025
September in Sestriere, Italy offers a captivating blend of early autumn charm, with temperatures ranging from a maximum of 22°C (72°F) to a minimum of -3°C (27°F). The average temperature hovers around 11°C (52°F), making it a refreshing time to explore the stunning alpine scenery. However, visitors should be prepared for variable weather, as Sestriere experiences 87 mm (3.4 in) of precipitation over approximately 18 days, contributing to a humidity level of 73%. This unique combination of mild temperatures and occasional showers creates an ideal atmosphere for outdoor activities amidst the changing foliage.
In September, Sestriere, Italy, experiences a refreshing transition as summer yields to autumn. The temperatures range from a cool -3°C (27°F) at night to a pleasant 22°C (72°F) during the day, with an average of 11°C (52°F). This shift marks a notable departure from the warmer summer months, as the region prepares for the chillier days ahead. Travelers can enjoy comfortable hikes during the day while needing a light jacket as evening temperatures dip. With the vibrant fall foliage setting the alpine backdrop, September is a perfect time to explore Sestriere's stunning landscapes before winter's embrace returns.
In September, Sestriere experiences a transition marked by an average precipitation of 87 mm (3.4 in) over approximately 18 days of rain. This amount signals a notable decrease compared to the wetter months of May and June, which recorded 168 mm and 163 mm, respectively. However, September still holds onto its moderately rainy character, standing out with more precipitation days than October's projected 10 days. The month serves as a bridge, hinting at the upcoming autumnal shift, while retaining a semblance of summer's influence with its relatively gentler rain. As the landscape transforms, September’s rainfall contributes to lush surroundings, displaying the beautiful interplay of changing seasons in this captivating Italian alpine region.
In September, Sestriere, Italy, experiences a transition in humidity levels, with an average of 73%. This marks a slight increase from the summer's comfortable dip, where August recorded a low of 63%. As the warm days of summer fade, the humidity begins to climb again, foreshadowing the wetter months ahead. October follows with a significant leap to 89%, illustrating the shift towards the colder, more humid months of winter, which consistently hover around 90%. This gradual rise in humidity from the relative lows of summer into the autumnal and winter seasons highlights a notable trend, epitomizing Sestriere's transition from a sun-soaked summer retreat to a crisp, snowy haven.
As summer transitions to autumn in Sestriere, Italy, the UV Index in September reflects a notable decline from the intense summer levels, settling at 8, which falls into the very high exposure category. This is a slight dip from the peak values of 10 and 11 seen in July and August, where only 10 minutes of sun exposure was safe for most skin types. In September, while the burn time remains brief at 15 minutes, it emphasizes the importance of staying vigilant about sun safety even as temperatures begin to cool. The trends throughout the year showcase a shift from moderate exposure in the winter months to extreme caution during the height of summer, allowing visitors to prepare adequately for the UV challenges ahead. For more details and updates, check the Sestriere UV Index.
UV Risk Categories
As the golden rays of September sunshine grace Sestriere, Italy, visitors can bask in approximately 334 hours of delightful daylight. This month stands as a beautiful transition from the vibrant summer, where July peaks at 431 hours, to the more subdued tones of October with 294 hours. The gradual decline in sunlight from the summer months is perfectly complemented by colorful autumn landscapes, inviting outdoor exploration. Notably, September still retains a generous amount of sunshine, making it an ideal time for hiking and indulging in the region's captivating scenery before the chill of winter sets in.
In September, Sestriere, Italy experiences a moderate likelihood of sunny weather with a 33% chance of sun. This marks a slight dip from the vibrant summer months of August, which enjoys a 57% likelihood of sunshine. Interestingly, the trend shows that as summer transitions into autumn, the chances of clearer skies begin to diminish. This pattern suggests that while September still holds the remnants of summer, visitors should prepare for a mix of sunshine and potential cloud cover as the dynamic weather of autumn sets in. Overall, the month offers a unique blend of late summer charm and early fall hues, inviting travelers to revel in the stunning alpine landscape.
As summer gracefully transitions into autumn, September in Sestriere, Italy showcases a delightful shift in daylight, with approximately 12 hours of light. This marks a gradual tapering from the sun-kissed 15 hours of July and June, inviting a more temperate experience as days shorten. While sunlit hours are on the decline, the lingering warmth of summer still offers ample opportunity for outdoor adventures. As the month unfolds, the enchanting landscape begins to embrace the softer golden hues of fall, creating a picturesque backdrop for both locals and visitors alike. With daylight diminishing further into October and November, September serves as a gentle reminder of the fleeting beauty of summer while beckoning the cozy comforts of autumn.
As summer yields to autumn in Sestriere, Italy, the September wind brings a gentle breeze, with an average speed of just 1.1 m/s (2 mph). This marks the lowest wind speed of the year, creating a serene atmosphere ideal for leisurely strolls and admiring the stunning mountain vistas. The cooling temperatures and soft winds in September contrast with the brisker conditions of winter months, where winds pick up again, reaching speeds of 1.7 m/s (4 mph) in January and December. Overall, September serves as a tranquil transition, with wind conditions that elegantly reflect the changing seasons, inviting visitors to embrace both the soft breezes and the breathtaking landscapes of this picturesque locale.
The weather in Sestriere 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 Sestriere and find detailed weather information for every month.
September and January present quite contrasting weather conditions. In September, temperatures range from a chilly minimum of -3°C (27°F) to a comfortable maximum of 22°C (72°F), with an average temperature of 11°C (52°F). The month sees 87 mm (3.4 in) of precipitation over 18 days, accompanied by a moderate humidity level of 73%. In stark contrast, January experiences much colder temperatures, with a minimum of -19°C (-2°F), an average of -5°C (23°F), and a maximum of only 7°C (46°F). Despite having less precipitation at 73 mm (2.9 in) over just 8 days, January's humidity is notably higher at 91%. For more detailed insights, check out the Sestriere weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a low of -3°C (27°F) to a pleasant average of 11°C (52°F), reaching a maximum of 22°C (72°F). This month experiences moderate precipitation of 87 mm (3.4 in) spread over 18 days, with humidity levels at 73%. In contrast, February is much colder, with temperatures dropping to a minimum of -17°C (2°F) and averaging -2°C (29°F), peaking at 12°C (54°F). Precipitation is lower at 59 mm (2.3 in) over 10 days, but humidity is higher at 87%. For more insights about February's weather, you can check out Sestriere weather in February.
In comparing the weather of September and March, significant differences can be observed. September typically features milder conditions with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 22°C (72°F), resulting in an average temperature of 11°C (52°F). Precipitation is relatively moderate at 87 mm (3.4 in) over 18 days, with humidity at 73%. In contrast, March is much colder, with temperatures dipping down to -18°C (0°F) at night and peaking at 13°C (56°F) during the day, averaging around 0°C (32°F). Precipitation is slightly higher at 94 mm (3.7 in) across 14 days, with humidity increasing to 84%. For more detailed information, you can check Sestriere weather in March.
Comparing the weather of September and April reveals significant differences in temperatures and precipitation patterns. In September, temperatures range from a chilly minimum of -3°C (27°F) to a mild maximum of 22°C (72°F), with an average of 11°C (52°F). The month experiences 87 mm (3.4 in) of rainfall over 18 days, accompanied by 73% humidity. In contrast, April sees even colder temperatures, with a minimum of -10°C (14°F) and an average of just 3°C (38°F), peaking at a max of 16°C (61°F). This month is wetter, with 116 mm (4.6 in) of precipitation over 13 days and a higher humidity level of 83%. For more detailed insights into April weather, visit Sestriere weather in April.
September and May exhibit distinctive weather patterns, reflecting the transition from summer to autumn and the tail end of spring, respectively. In September, temperatures range from a minimum of -3°C (27°F) to a pleasant average of 11°C (52°F), peaking at 22°C (72°F). The month sees a moderate amount of rainfall, totaling 87 mm (3.4 in) over 18 days, and humidity levels around 73%. In contrast, May experiences cooler temperatures, with a minimum of -7°C (19°F), an average of 8°C (46°F), and a maximum of 22°C (71°F). It is wetter, with precipitation reaching 168 mm (6.6 in) across 20 days and higher humidity at 78%. For a closer look at the weather conditions in May, check out Sestriere weather in May.
The weather in September is generally milder compared to June. While September experiences a minimum temperature of -3°C (27°F) and an average of 11°C (52°F), June typically sees slightly warmer temperatures, with a minimum of 2°C (36°F) and an average of 13°C (55°F). The maximum temperatures in September reach up to 22°C (72°F), while June can climb higher to 27°C (80°F). However, June has significantly more precipitation, totaling 163 mm (6.4 in) over 22 days, compared to September's 87 mm (3.4 in) across 18 days. The humidity levels remain similar between the two months, with September at 73% and June at 75%. For more detailed insights on June weather, you can check Sestriere weather in June.
In comparing the weather between September and July, September experiences cooler temperatures, with a minimum of -3°C (27°F) and an average of 11°C (52°F), while July remains warmer, with a minimum of 5°C (41°F) and an average of 15°C (59°F). July also sees slightly higher maximum temperatures at 24°C (75°F) compared to September's maximum of 22°C (72°F). Precipitation is more frequent in July, occurring over 23 days and totaling 155 mm (6.1 in), whereas September has less rainfall at 87 mm (3.4 in) over 18 days. Humidity levels are quite similar, with September at 73% and July at 72%. For more detailed information on July weather, you can visit Sestriere weather in July.
In comparing the weather of September and August, September tends to be cooler, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 22°C (72°F), resulting in an average of 11°C (52°F). In contrast, August experiences milder conditions with temperatures from a minimum of 4°C (39°F) to a maximum of 26°C (79°F), with an average of 15°C (59°F). Although September has slightly less precipitation at 87 mm (3.4 in) over 18 days compared to August’s 103 mm (4.1 in) over 22 days, it does exhibit higher humidity levels at 73% versus August's 63%. For more details on August weather, you can explore Sestriere weather in August.
In comparing the weather between September and October, notable differences emerge in both temperature and precipitation. September sees a wider range of temperatures, with a minimum of -3°C (27°F) and a maximum of 22°C (72°F), resulting in an average of 11°C (52°F). This month also experiences less precipitation at 87 mm (3.4 in) over 18 days. In contrast, October becomes cooler with a minimum of -4°C (25°F), an average of 6°C (44°F), and a maximum of 19°C (67°F). Additionally, October brings increased rainfall, totaling 115 mm (4.5 in) over just 10 days, coupled with higher humidity levels at 89%. For more detailed information about the weather in October, you can check out Sestriere weather in October.
September and November present strikingly different weather conditions. In September, temperatures range from a minimum of -3°C (27°F) to a maximum of 22°C (72°F), with an average of 11°C (52°F). The month experiences 87 mm (3.4 in) of precipitation over 18 days, with humidity levels at 73%. By contrast, November sees much colder temperatures, with a minimum of -15°C (6°F), an average of 0°C (32°F), and a maximum of 14°C (57°F). Additionally, November is wetter, accumulating 142 mm (5.6 in) of precipitation across 14 days, while humidity rises to 90%. For more specific insights regarding November weather, you can visit Sestriere weather in November.
September weather offers a more temperate climate, with average temperatures hovering around 11°C (52°F) and maximums reaching up to 22°C (72°F). The month experiences moderate rainfall, totaling 87 mm (3.4 in) over 18 days, and the humidity is relatively comfortable at 73%. In contrast, December brings significantly colder conditions, where temperatures plummet to a minimum of -19°C (-2°F) and an average of -4°C (24°F), with maximums only reaching 6°C (44°F). Precipitation increases to 103 mm (4.1 in) over 13 days, and the humidity rises to 90%, creating a distinctly chillier atmosphere. For more detailed information about December weather in this region, visit Sestriere weather in December.
As September unfolds in Sestriere, the weather showcases a unique transition that sets it apart from the summer months. With average temperatures dipping to a cooler 11°C (52°F), the refreshing breeze is a welcome change, allowing visitors to enjoy the stunning alpine landscapes without the summer heat. Despite this cooling trend, it's wise to be prepared for frequent precipitation—with rain likely on nearly half of September's days, totaling 87 mm (3.4 in) throughout the month. This increased humidity of 73% adds a crispness to the air, perfect for those who revel in the beauty of the mountains in early autumn. For a deeper look into the seasonal climate of this remarkable destination, check out Sestriere Climate.