Last updated: March 24, 2025
September in Gressoney-Saint-Jean, Italy welcomes a transition into autumn, characterized by a maximum temperature reaching 19°C (67°F) and an average of 9°C (48°F). As the summer warmth fades, minimum temperatures can dip to -4°C (26°F), hinting at the chill of the upcoming season. With 99 mm (3.9 in) of precipitation spread over 19 days, expect frequent showers that contribute to the lush landscapes of this picturesque alpine village. The humidity level sits at a notable 74%, adding to the crisp, refreshing air that defines the charm of September in this beautiful region.
As the summer warmth gently recedes in Gressoney-Saint-Jean, September brings a notable shift in temperatures, signaling the arrival of autumn. With a minimum temperature of -4°C (26°F) and an average hovering around 9°C (48°F), the air becomes crisper and more refreshing. Daytime highs reach a pleasant 19°C (67°F), offering opportunities for breathtaking hikes amidst stunning fall foliage. This month marks a transition from the mild summer climate, reflecting a trend where temperatures gradually dip as the days shorten. Visitors can savor the unique charm of the Alps as they transition into the cozy embrace of autumn.
In September, Gressoney-Saint-Jean sees a moderate precipitation amount of 99 mm (3.9 in), falling over 19 days, making it a month characterized by consistent rainfall as summer transitions into autumn. This amount is notably lower than the heavier downpours of May and June, which each recorded 173 mm, yet remains above the relatively drier winter months. The September rains help to nourish the lush landscapes, setting a picturesque scene as the vibrant summer foliage begins to change. With the weather shifting, visitors to the area can expect a blend of milder days punctuated by refreshing showers, an ideal backdrop for enjoying the stunning natural beauty that Gressoney-Saint-Jean has to offer.
In Gressoney-Saint-Jean, Italy, September brings a noticeable shift in humidity as it settles at 74%. This level marks a slight uptick from the drier summer months, where July and August boast 67% and 64% humidity, respectively. As autumn approaches, the air becomes more saturated, hinting at the changing seasons. This transition is significant, as it leads into the higher humidity levels of October and November, which hover around 87% and 88%, suggesting a return to the moist conditions characteristic of the colder months. Overall, the humidity in September illustrates a natural ebb and flow that encapsulates the region's climatic rhythm, setting the stage for the lush, cooler atmosphere of fall.
In September, Gressoney-Saint-Jean experiences a high UV Index of 7, indicating that while the sun's rays are strong, they are not at their peak intensity, as seen in the height of summer months. With a suggested burn time of 25 minutes, it's essential for visitors and residents alike to stay protected – perhaps enjoying the stunning alpine scenery in the shade or wearing sunscreen. After a summer marked by very high UV levels (peaking at 10 in June and July), September signifies a gradual decline towards more moderate exposure in the coming months. Nevertheless, it's a reminder that even as autumn approaches, vigilance against UV radiation remains important. To stay informed about the UV levels throughout the year, check out Gressoney-Saint-Jean UV Index.
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September in Gressoney-Saint-Jean, Italy, enjoys a delightful 334 hours of sunshine, a transition month that beautifully bridges the vibrant summer and the crisp autumn. As the days grow shorter, this charming locale still basks in a significant amount of sunlight, notably more than the colder months ahead, such as October, which offers only 292 hours. With 406 hours in June and a peak of 428 hours in July, the summer sun begins to wane, yet September remains a serene retreat for outdoor enthusiasts and nature lovers alike. As tourists bask in the milder warmth, the stunning Dolomite scenery is accentuated by golden hues, making it truly a magical time to visit.
In Gressoney-Saint-Jean, Italy, the likelihood of enjoying sunny weather in September is relatively low, with only a 27% chance of sunshine. This trend reflects a broader pattern observed throughout the late summer months, where the chances of sun typically decline after the peak of August, which boasts a more favorable 51% likelihood. As the seasons shift, the sun’s presence diminishes further, falling into a pattern that suggests September’s weather is more likely to be influenced by early autumn chill rather than summer warmth. This dip in sunshine highlights the transitional nature of September in the region, as the vibrant summer months give way to the crispness of fall.
As summer fades, September in Gressoney-Saint-Jean greets visitors with a gentle transition, offering 12 hours of daylight, a noticeable decrease from the sun-drenched peaks of July and August. This month marks the start of autumn, where days gradually shorten, creating a perfect backdrop for enjoying the lingering warmth and vibrant fall colors. Following the steady increase in daylight from January to June, September's shift serves as a reminder of nature's rhythm, paving the way for the cozier days of fall ahead. An enchanting blend of daylight and twilight, this month invites both adventure and reflection as the seasons change in this picturesque Italian village.
As summer gives way to autumn in Gressoney-Saint-Jean, Italy, the air begins to soften, and the winds calm down, particularly in September where the average wind speed drops to a gentle 1.1 m/s (2 mph). This trend of declining wind speeds is reflective of the transition from the warmer months, as earlier months like January and December see brisker winds at 1.7 m/s (4 mph). While the rest of the year often enjoys mild breezes around 3 mph, September stands out as a tranquil moment, allowing visitors to bask in the serene beauty of the alpine landscape without the distractions of stronger gusts. Embracing this calm not only enhances the charm of the picturesque environment but also invites a peaceful experience for anyone enjoying the vibrant autumn colors.
The weather in Gressoney-Saint-Jean 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 Gressoney-Saint-Jean and find detailed weather information for every month.
In September, the weather in Gressoney-Saint-Jean is milder, with average temperatures ranging from a minimum of -4°C (26°F) to a maximum of 19°C (67°F). The month experiences moderate precipitation of 99 mm (3.9 in) over about 19 days, accompanied by a humidity level of 74%. In contrast, January brings much colder temperatures, with averages dropping to a minimum of -23°C (-10°F) and a maximum of only 4°C (39°F). Despite slightly lower precipitation of 86 mm (3.4 in) over just 9 days, the humidity rises to 88%, contributing to the chill in the air. For more detailed information on January weather, check Gressoney-Saint-Jean weather in January.
September and February present starkly different weather patterns in Gressoney-Saint-Jean. In September, temperatures range from a chilly -4°C (26°F) at night to a mild 19°C (67°F) during the day, with an average of 9°C (48°F). The month receives 99 mm (3.9 in) of precipitation over 19 days, with humidity levels hovering around 74%. In contrast, February experiences much colder conditions, featuring low temperatures that can plummet to -21°C (-6°F) and a maximum of only 10°C (50°F), averaging at -4°C (24°F). Although there is less precipitation at 52 mm (2.1 in) across just 10 days, humidity rises to 81%. For more details, check out Gressoney-Saint-Jean weather in February.
In comparing the weather of September and March, we see notable differences. September experiences milder temperatures, ranging from a minimum of -4°C (26°F) to a comfortable maximum of 19°C (67°F), with an average of 9°C (48°F). It also has relatively high humidity at 74% and more rainfall, totaling 99 mm (3.9 in) over 19 days. In contrast, March is significantly colder with temperatures that dip as low as -23°C (-9°F) and average around -3°C (28°F), peaking at just 11°C (53°F). Although March has slightly less precipitation at 90 mm (3.5 in) over 13 days, the humidity remains high at 76%. For a closer look at March weather in Gressoney-Saint-Jean, visit Gressoney-Saint-Jean weather in March.
In comparing the weather of September and April, September generally experiences milder temperatures with an average of 9°C (48°F), compared to the chillier April average of 1°C (34°F). While September enjoys maximum temperatures reaching up to 19°C (67°F), April's highs peak at only 14°C (57°F). Precipitation is notably higher in April, with 136 mm (5.3 in) falling over 13 days, in contrast to September’s 99 mm (3.9 in) spread over 19 days. Additionally, humidity levels are slightly elevated in April at 77%, compared to September's 74%. For detailed insights on April weather, you can visit Gressoney-Saint-Jean weather in April.
When comparing the weather between September and May, September generally offers milder temperatures with a minimum of -4°C (26°F) and an average of 9°C (48°F), peaking at 19°C (67°F). In contrast, May experiences slightly cooler temperatures, with a minimum of -9°C (16°F) and an average of 6°C (42°F), reaching a maximum of 18°C (65°F). Although both months share the same humidity level of 74%, May receives significantly more precipitation—173 mm (6.8 in) over 22 days, compared to September's 99 mm (3.9 in) across 19 days. For more details on the weather conditions during May, you can check Gressoney-Saint-Jean weather in May.
In comparing the weather of September and June, June tends to be warmer and wetter than September. June experiences average temperatures ranging from a minimum of -1°C (30°F) to a maximum of 26°C (78°F), while September has a narrower temperature range with a minimum of -4°C (26°F) and a maximum of 19°C (67°F). Precipitation is also higher in June, totaling 173 mm (6.8 in) over 25 days, compared to September's 99 mm (3.9 in) over 19 days. Despite June's higher precipitation, the humidity levels are slightly lower at 71% compared to September's 74%. For a closer look at the specifics, you can refer to Gressoney-Saint-Jean weather in June.
In comparing the weather of September and July, September presents cooler temperatures, with a minimum of -4°C (26°F) and an average of 9°C (48°F), contrasting with July's milder minimum of 3°C (37°F) and average of 13°C (56°F). While September enjoys maximum temperatures reaching up to 19°C (67°F), July can be slightly warmer with a maximum of 22°C (72°F). Additionally, September experiences higher humidity at 74% and substantial precipitation totaling 99 mm (3.9 in) over 19 days, compared to July's 157 mm (6.2 in) across 25 days and relatively lower humidity at 67%. For more detailed insights, you can check Gressoney-Saint-Jean weather in July.
In comparing the weather between September and August, September experiences cooler temperatures with a minimum of -4°C (26°F) and an average of 9°C (48°F), while August has milder conditions with a minimum of 2°C (36°F) and an average of 13°C (55°F). The maximum temperature in September reaches 19°C (67°F), significantly lower than August's peak of 24°C (76°F). Additionally, September sees increased precipitation with 99 mm (3.9 in) over 19 days, compared to August's 156 mm (6.1 in) across 22 days, although the humidity is higher in September at 74% versus 64% in August. For a detailed look at August weather, visit Gressoney-Saint-Jean weather in August.
In comparing the weather between September and October, notable differences emerge in both temperature and precipitation. September boasts milder temperatures, with an average of 9°C (48°F) and a maximum of 19°C (67°F), alongside 99 mm (3.9 in) of rain over 19 days. In contrast, October experiences colder conditions, as the average temperature drops to 4°C (40°F) with a maximum of 16°C (61°F), and precipitation significantly increases to 187 mm (7.4 in) over just 10 days. Additionally, humidity rises in October to 87%, making the air feel cooler and damper. For a more detailed look at the weather trends, you can explore Gressoney-Saint-Jean weather in October.
September and November exhibit marked differences in weather conditions. In September, temperatures range from a minimum of -4°C (26°F) to a maximum of 19°C (67°F), with an average of 9°C (48°F). The month experiences moderate precipitation of 99 mm (3.9 in) over 19 days, coupled with a humidity level of 74%. In contrast, November sees much colder temperatures, with a minimum of -19°C (-2°F) and an average of -2°C (29°F). The maximum reaches only 11°C (53°F), and precipitation increases significantly to 162 mm (6.4 in) over 14 days, alongside higher humidity at 88%. For a closer look at specific weather patterns, visit Gressoney-Saint-Jean weather in November.
In September, the weather is relatively mild, with temperatures ranging from a minimum of -4°C (26°F) to a maximum of 19°C (67°F), and an average of 9°C (48°F). The month sees a moderate amount of precipitation at 99 mm (3.9 in) over 19 days, coupled with a humidity level of 74%. In contrast, December brings much colder temperatures, with a minimum of -22°C (-7°F), an average of -7°C (20°F), and a maximum of just 5°C (42°F). Precipitation increases slightly to 106 mm (4.2 in) spread across 14 days, along with higher humidity levels at 85%. For more details on the cold conditions typical of December, you can check out Gressoney-Saint-Jean weather in December.
As the vibrant colors of autumn begin to sweep across Gressoney-Saint-Jean, September ushers in a significant shift in weather compared to the milder summer months. With an average temperature that dips notably, the crisp air brings a refreshing change, inviting residents and visitors alike to relish outdoor activities under breathtaking vistas. While the likelihood of rain increases, marking a more humid time, this moisture nourishes the stunning landscapes that define the region. Whether you're exploring scenic trails or enjoying local festivities, the unique September climate enhances the charm of this picturesque town. For a deeper insight into what to expect throughout the year, be sure to check out the detailed information at Gressoney-Saint-Jean Climate.