September Weather in Pralognan-la-Vanoise, France

Last updated: February 26, 2025

September in Pralognan-la-Vanoise offers a delightful yet varied climate, with maximum temperatures reaching a comfortable 20°C (68°F) and an average of 8°C (46°F). However, the crisp mountain air can bring a bite, with minimum temperatures plunging to -12°C (11°F) at night. During this month, expect 70 mm (2.8 in) of precipitation spread over approximately 13 days, creating a beautifully lush landscape. With humidity hovering around 73%, visitors will feel the refreshing embrace of this stunning alpine setting, perfect for those seeking both adventure and tranquility in nature's embrace.

September Temperature in Pralognan-la-Vanoise

In September, Pralognan-la-Vanoise experiences a noticeable shift as summer wanes, with temperatures showcasing a blend of warmth and crispness. The minimum temperature settles around -12°C (11°F), while the average climbs to a comfortable 8°C (46°F), allowing for enjoyable yet brisk outdoor adventures. As maximum temperatures reach a pleasant 20°C (68°F), this charming alpine village invites visitors to savor the last vestiges of late summer. When compared to the preceding months, September's weather begins to hint at the upcoming chill of autumn, while still providing a delightful balance for those looking to explore the stunning landscapes of the Vanoise National Park.

September Weather in Pralognan-la-Vanoise: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Pralognan-la-Vanoise, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec152225323949545346382619
Data source: Temperature data for Pralognan-la-Vanoise 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 Pralognan-la-Vanoise

In September, Pralognan-la-Vanoise experiences a notable decline in precipitation, with only 70 mm (2.8 in) recorded across 13 days. This represents a decrease from the higher rainfall amounts seen in the summer months, particularly May (161 mm) and June (108 mm), signaling the transition from the lush greenery of summer to the milder, more stable conditions of autumn. As the region prepares for the colder months ahead, September sets the stage for the first hints of crisp air, making it a particularly charming time for visitors who enjoy the evolving landscape while still enjoying relatively moderate rain compared to the heavier downpours that characterize the winter months.

September Precipitation Trends in Pralognan-la-Vanoise

The chart displays monthly precipitation patterns in Pralognan-la-Vanoise, 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.
JanFebMarAprMayJunJulAugSepOctNovDec14510413978161108879370110117230
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Pralognan-la-Vanoise

In September, Pralognan-la-Vanoise experiences a noticeable uptick in humidity, measuring at 73%. This comes after a steady decline through the summer months, where humidity levels plummeted from 91% in January to a refreshing 63% in August. The early fall marks a transition as the air begins to retain more moisture again, foreshadowing the return of wetter conditions in the coming months. As October approaches, the humidity rises significantly to 89%, mirroring the winter months ahead, which consistently hover around the 90% mark. This rhythm of fluctuating humidity reveals the region's unique climate dynamics, marking September as a pivotal bridge from summer's warmth to autumn's embrace.

September Average Humidity in Pralognan-la-Vanoise

This chart illustrates the average monthly humidity levels in Pralognan-la-Vanoise, 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%87%84%83%78%75%72%63%73%89%91%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Pralognan-la-Vanoise

In September, Pralognan-la-Vanoise experiences a UV Index of 8, placing it in the very high exposure category with a burn time of just 15 minutes. This marks a slight decline from the peak summer months, yet the sun's intensity remains significant as summer transitions into autumn. Notably, the UV index pattern throughout the year reveals a clear trend: it peaks in June with an extreme rating of 11, followed closely by May and July at 10. As the year progresses into the cooler months, UV levels gradually decrease, emphasizing the importance of sun safety even as summer fades. For more detailed insights, check out Pralognan-la-Vanoise UV Index.

Maximum UV Index Levels in Pralognan-la-Vanoise for September

The chart shows the monthly maximum UV Index (UVI) for Pralognan-la-Vanoise 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.
JanFebMarAprMayJunJulAugSepOctNovDec358910111098632
Data source: Pralognan-la-Vanoise 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 Pralognan-la-Vanoise

As the summer sun begins to wane, September in Pralognan-la-Vanoise offers a delightful blend of warmth and tranquility, boasting 329 hours of sunshine. This marks a gentle decline from the dazzling heights of July, which enjoys the most sun at 423 hours, but still maintains a vibrant glow, outpacing the golden days of early spring. The transition into autumn highlights a consistent trend of abundant sunshine throughout the warmer months, with hours peaking in July and gracefully tapering off into fall. Visitors can appreciate the lingering warmth, as September enjoys significantly more sunshine than the chillier months to follow, creating an ideal backdrop for outdoor adventures amidst the stunning alpine scenery.

Monthly Sunshine Duration in Pralognan-la-Vanoise: September Highlighted

The September sunshine duration represents the total number of hours Pralognan-la-Vanoise 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.
JanFebMarAprMayJunJulAugSepOctNovDec176h238h308h341h363h395h423h393h329h289h218h206h
Data source: Pralognan-la-Vanoise September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Pralognan-la-Vanoise During September

As summer transitions into autumn, September in Pralognan-la-Vanoise sees a 28% chance of sunny weather, marking a subtle shift from the sunnier days of August, which boasts a 43% likelihood. This gradual decline in sunshine opportunities is part of a broader trend observed throughout the year, where the peak summer months tend to enjoy more favorable weather compared to the early autumn weeks. Although the chance of clear skies decreases, September still offers a pleasant mix of crisp air and vibrant foliage, inviting visitors to embrace the beauty of the changing season. As the year progresses, the sunshine percentages fluctuate, with a notable high in March at 45%, hinting at the enchanting diversity of weather that Pralognan-la-Vanoise has to offer across the seasons.

Percentage of Sunny Days in September in Pralognan-la-Vanoise

The chart illustrates the percentage of sunny days in Pralognan-la-Vanoise 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 Pralognan-la-Vanoise experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec21%38%45%41%27%27%34%43%28%44%30%40%
Data source: Pralognan-la-Vanoise September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Pralognan-la-Vanoise in September

As September arrives in Pralognan-la-Vanoise, France, daylight begins to wane, offering approximately 12 hours of sunlight each day. This marks a gentle decline from the sun-drenched summer months, where both June and July basked in 15 hours of daylight. The transition into autumn is evident as days grow shorter, setting the stage for the re-emerging rhythms of the seasons. Interestingly, this month brings a balance between the longer summer days and the crisp, shorter days of fall, creating a unique opportunity to experience the stunning natural landscapes of the region under a softer, golden light before winter settles in. As daylight dips further in October to just 10 hours, the vibrant hues of September’s early fall foliage can be vividly enjoyed, making it an enchanting time for visitors.

Average Daylight Hours in Pralognan-la-Vanoise for September

The chart illustrates the variation in daylight duration in Pralognan-la-Vanoise throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 7m10h 22m11h 56m13h 33m14h 55m15h 37m15h 15m14h 1m12h 29m10h 53m9h 28m8h 44m
Data source: Pralognan-la-Vanoise daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Pralognan-la-Vanoise

In September, Pralognan-la-Vanoise ushers in the transition from summer to autumn with a gentle whisper of wind, as average speeds dip to 1.1 m/s (2 mph). This soft breeze is characteristic of the month, marking the year's low point in wind activity, a notable contrast to the slightly more robust winds of the preceding August. As the mountains begin to don their fall colors, the calmer weather invites visitors to savor serene hikes and breathtaking views, fostering a perfect atmosphere for reflection and adventure. The trend throughout the year reveals a slight ebb in wind speeds during late summer and early autumn, suggesting a time of stillness before the crisp air and invigorating breezes of October return, reminding us of nature's rhythmic cycle.

Average September Wind Speed in Pralognan-la-Vanoise

The chart displays monthly wind speed patterns in Pralognan-la-Vanoise, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.51.21.21.31.21.31.31.1 m/s1.41.41.2
Data source: Pralognan-la-Vanoise September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Pralognan-la-Vanoise Compares to Other Months

The weather in Pralognan-la-Vanoise 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 Pralognan-la-Vanoise and find detailed weather information for every month.

In September, the weather showcases a mild climate with temperatures ranging from a minimum of -12°C (11°F) to a maximum of 20°C (68°F), averaging around 8°C (46°F). The month experiences moderate rainfall of 70 mm (2.8 in) across 13 days, with a humidity level of 73%. In contrast, January presents a starkly colder atmosphere, with temperatures plunging to a minimum of -27°C (-16°F) and an average of -10°C (15°F), peaking at only 6°C (43°F). Precipitation is significantly higher at 145 mm (5.7 in), occurring over 10 days, and the humidity escalates to 91%. For a deeper insight into the conditions, you can check Pralognan-la-Vanoise weather in January.

In September, the weather in Pralognan-la-Vanoise is relatively mild, with temperatures ranging from a chilly -12°C (11°F) to a comfortable 20°C (68°F) and an average of 8°C (46°F). This month experiences about 70 mm (2.8 in) of precipitation over 13 days, accompanied by a humidity level of 73%. In contrast, February is much colder, with temperatures plummeting to a minimum of -23°C (-10°F) and averaging -6°C (22°F), peaking at a maximum of 7°C (45°F). The month typically sees more precipitation, amounting to 104 mm (4.1 in) spread over 12 days, and higher humidity at 87%. This stark difference highlights the significant seasonal shifts in weather. For more specific details, refer to Pralognan-la-Vanoise weather in February.

The weather in September and March presents distinct contrasts. In September, temperatures can range from a chilly -12°C (11°F) to a comfortable 20°C (68°F), with an average of 8°C (46°F). The month sees 70 mm (2.8 in) of precipitation over approximately 13 days, while humidity levels hover around 73%. In contrast, March features colder conditions, with temperatures dipping significantly lower, from a minimum of -25°C (-13°F) to a maximum of 10°C (50°F), averaging -4°C (25°F). The precipitation in March is notably higher at 139 mm (5.5 in) and occurs over about 15 days, with increased humidity at 84%. For more details, you can check the Pralognan-la-Vanoise weather in March.

When comparing the weather in September and April, notable differences emerge in temperature and humidity. September tends to be milder, with temperatures ranging from a minimum of -12°C (11°F) to a maximum of 20°C (68°F), and an average of 8°C (46°F). In contrast, April is colder, with temperatures dipping from a minimum of -17°C (1°F) to a maximum of 12°C (54°F), and an average of only 0°C (32°F). Precipitation levels are relatively close, with September experiencing 70 mm (2.8 in) over 13 days and April slightly higher at 78 mm (3.1 in) over 11 days. Humidity is also a factor, with September at 73% and April a bit more humid at 83%. For more detailed insights on April weather, check out Pralognan-la-Vanoise weather in April.

In comparing the weather of September and May, we can observe notable differences in temperature and precipitation. September generally experiences a milder temperature range, with minimums around -12°C (11°F) and maximums reaching 20°C (68°F), while May is slightly cooler with a minimum of -13°C (9°F) and a similar maximum of 19°C (67°F). However, May stands out for its significantly higher precipitation, accumulating 161 mm (6.3 in) over 20 days compared to September's 70 mm (2.8 in) over just 13 days. Additionally, humidity levels are slightly higher in May at 78% compared to 73% in September. For a more detailed view of May's weather, you can check out Pralognan-la-Vanoise weather in May.

Comparing the weather in September and June reveals notable differences. In September, temperatures range from a chilly minimum of -12°C (11°F) to a comfortable maximum of 20°C (68°F), with an average of 8°C (46°F). The month experiences around 70 mm (2.8 in) of precipitation over 13 days and maintains a humidity level of 73%. In contrast, June sees milder weather with temperatures ranging from a low of -4°C (25°F) to a high of 24°C (76°F), resulting in an average temperature of 9°C (49°F). It also has more precipitation at 108 mm (4.3 in) spread over 17 days, with slightly higher humidity at 75%. For a closer look at June weather specifics, check out Pralognan-la-Vanoise weather in June.

When comparing the weather in September to that of July, notable differences emerge. September experiences cooler temperatures, with a minimum of -12°C (11°F) and a maximum of 20°C (68°F), leading to an average of 8°C (46°F). In contrast, July enjoys milder conditions, where temperatures range from a minimum of 0°C (32°F) to a maximum of 25°C (78°F), with an average temperature of 12°C (54°F). Precipitation is slightly higher in July at 87 mm (3.4 in) over 14 days, compared to September's 70 mm (2.8 in) over 13 days. Humidity levels are fairly similar, with September at 73% and July at 72%. For a detailed overview of July's weather, you can visit Pralognan-la-Vanoise weather in July.

In comparing the weather between August and September, we observe notable differences in temperature and precipitation patterns. August experiences milder temperatures, with a minimum of 0°C (32°F), an average of 12°C (53°F), and a maximum of 24°C (75°F). In contrast, September shows a drop in temperatures, with a minimum of -12°C (11°F) and a maximum of 20°C (68°F), making it considerably cooler overall. Additionally, August sees higher precipitation levels at 93 mm (3.7 in) compared to September's 70 mm (2.8 in), although both months have rain on about 13 days. The humidity also varies slightly, with August at 63% and September at 73%. For a more detailed overview, check out the Pralognan-la-Vanoise weather in August.

September and October in Pralognan-la-Vanoise show a distinct shift in weather patterns. In September, temperatures range from a minimum of -12°C (11°F) to a maximum of 20°C (68°F), averaging around 8°C (46°F). The month experiences 70 mm (2.8 in) of precipitation over 13 days, with a humidity level of 73%. As autumn progresses into October, temperatures drop further, with a minimum of -9°C (17°F) and a maximum of 15°C (60°F), resulting in an average temperature of 3°C (38°F). Precipitation increases notably to 110 mm (4.3 in) across 12 days, and humidity rises to 89%. For more detailed information on October weather in Pralognan-la-Vanoise, you can check Pralognan-la-Vanoise weather in October.

In September, the weather is milder, with temperatures ranging from a minimum of -12°C (11°F) to a maximum of 20°C (68°F) and an average of 8°C (46°F). The month experiences approximately 70 mm (2.8 in) of precipitation over 13 days and a relative humidity of 73%. In contrast, November brings much colder conditions, with temperatures dipping to a minimum of -22°C (-8°F), an average of -3°C (26°F), and a maximum of 12°C (53°F). Precipitation increases to 117 mm (4.6 in) spread over 14 days, and humidity rises significantly to 90%. For a detailed look at November conditions, check out Pralognan-la-Vanoise weather in November.

September weather in Pralognan-la-Vanoise is relatively mild, with average temperatures around 8°C (46°F) and maximum highs reaching 20°C (68°F). There's moderate precipitation, totaling 70 mm (2.8 in) over approximately 13 days, with humidity levels averaging 73%. In contrast, December brings much colder conditions, with an average temperature of -7°C (19°F) and highs peaking at just 4°C (39°F). Precipitation significantly increases to 230 mm (9.0 in) across 18 days, accompanied by higher humidity levels of 90%. For a detailed look at December weather patterns, check this link: Pralognan-la-Vanoise weather in December.

Compare Pralognan-la-Vanoise's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Pralognan-la-Vanoise

As September unfolds in Pralognan-la-Vanoise, the weather begins to shift, showcasing a unique blend of coolness and occasional warmth. Unlike the bustling summer months, this time of year brings a refreshing crispness to the air, with temperatures dipping lower and a notable increase in precipitation. Visitors may experience a mix of sunny days juxtaposed with rainy spells, creating an inviting atmosphere for those seeking tranquility in nature. The high humidity amplifies the feeling of freshness, making it a perfect backdrop for autumnal adventures. For a deeper understanding of the changing seasons and climate in this charming region, explore Pralognan-la-Vanoise Climate.