September Weather in La Valle - Wengen, Italy

Last updated: March 24, 2025

Discover the enchanting September weather of La Valle - Wengen, Italy, where temperatures gracefully transition with a maximum of 22°C (72°F) and an average of 10°C (49°F). As the month unfolds, prepare for some cooler nights, with temperatures dipping as low as -6°C (22°F). The region experiences 105 mm (4.1 in) of precipitation over 14 days, fostering a lush landscape that embodies the beauty of early autumn. With a humidity level of 83%, visitors are greeted by a refreshing and invigorating atmosphere, making it the perfect time to explore the breathtaking surroundings.

September Temperature in La Valle - Wengen

In September, La Valle - Wengen, Italy, begins to bid farewell to the warmth of summer, gradually making way for the crisp embrace of autumn. With temperatures ranging from a chilly -6°C (22°F) at night to a comfortable 22°C (72°F) during the day, visitors can relish in the beautiful transition of the seasons. The average temperature sits comfortably at 10°C (49°F), reflecting a noticeable drop from the balmy summer months, yet still warm enough for enjoyable outdoor activities. As the month progresses, the landscape transforms, showcasing the vibrant hues of fall foliage against a backdrop of the majestic mountains, making September a picturesque time to explore this alpine paradise.

September Weather in La Valle - Wengen: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in La Valle - Wengen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec192529354354565649413120
Data source: Temperature data for La Valle - Wengen 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 La Valle - Wengen

In September, La Valle - Wengen, Italy experiences a notable shift in weather patterns, with an average precipitation of 105 mm (4.1 in) spread over 14 days. This marks a decrease from the higher amounts seen in August, which recorded 177 mm (7.0 in), yet rainfall remains substantial as the region transitions into autumn. The steady decline in both precipitation amounts and rainy days throughout the late summer and early fall underscores a gradual shift towards drier conditions. A closer look reveals that while September's rainfall is less intense than the summer months, it still plays a crucial role in maintaining the lush landscape of the area as it prepares for the cooler, crisper days ahead.

September Precipitation Trends in La Valle - Wengen

The chart displays monthly precipitation patterns in La Valle - Wengen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec52526784132134147178105105127106
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in La Valle - Wengen

In September, La Valle in Wengen, Italy, experiences a moderate humidity level of 83%, making it a transitional month leading into the cooler autumn. This slight uptick from August’s 80% suggests a shift in the air as summer's heat starts to wane. Observing the year as a whole, the humidity gradually decreases from a peak of 93% in January, reflecting the region's damp winter climate, before progressively dipping during the warmer months. However, as October approaches, there is a noticeable rise once again, hinting at the return of the wetter conditions characteristic of the colder season. This rhythm of humidity not only influences the local weather but also sets the stage for the enchanting beauty that autumn brings to this picturesque Italian locale.

September Average Humidity in La Valle - Wengen

This chart illustrates the average monthly humidity levels in La Valle - Wengen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec93%89%86%83%78%79%82%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in La Valle - Wengen

As September arrives in La Valle - Wengen, Italy, the UV Index sees a noticeable shift, reflecting the transition from summer to autumn. With a UV Index of 7, categorized as high, sunbathers should be keenly aware of the increased risk of skin damage, particularly with a burn time of just 25 minutes. This month's UV levels are a slight decline from the peak summer months, yet they still demand caution, especially for outdoor activities around midday. It's vital to recognize the importance of sun protection, even as the days begin to cool off. For more insights and detailed information, explore the La Valle - Wengen UV Index.

Maximum UV Index Levels in La Valle - Wengen for September

The chart shows the monthly maximum UV Index (UVI) for La Valle - Wengen 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.
JanFebMarAprMayJunJulAugSepOctNovDec24789101097532
Data source: La Valle - Wengen 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 La Valle - Wengen

As summer gradually gives way to autumn, September in La Valle - Wengen, Italy, offers a delightful balance of sunshine, boasting around 307 hours of bright, uplifting daylight. This month marks a gentle decline from the sun-drenched heights of July's 405 hours and August's 370 hours, reflecting a seasonal transition. Notably, September still enjoys more sunshine than the cooler months ahead, such as October with 286 hours and November's diminished 222 hours. The lingering warmth invites visitors to explore the breathtaking landscapes, creating an idyllic backdrop for outdoor activities while basking in the golden glow of early fall.

Monthly Sunshine Duration in La Valle - Wengen: September Highlighted

The September sunshine duration represents the total number of hours La Valle - Wengen 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.
JanFebMarAprMayJunJulAugSepOctNovDec194h249h312h336h351h386h405h370h307h286h222h217h
Data source: La Valle - Wengen September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in La Valle - Wengen During September

As September rolls into La Valle - Wengen, the likelihood of sunny days stands at a modest 40%, reflecting a slight uptick from the summer months where July and August saw lower chances of sun at 32% and 39%, respectively. This suggests a gradual transition into autumn, yet still offers a fair opportunity for sunshine as the season changes. Interestingly, September's sunshine probability is in line with the overall trend of the fall months, hovering around the 40% mark, which is comparable to October's forecast of 41%. Therefore, while preparing for your September visit, you can remain hopeful for pleasant weather, making it a delightful time to experience the scenic beauty of this Italian gem.

Percentage of Sunny Days in September in La Valle - Wengen

The chart illustrates the percentage of sunny days in La Valle - Wengen 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 La Valle - Wengen experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%48%50%42%30%41%33%39%40%41%35%39%
Data source: La Valle - Wengen September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in La Valle - Wengen in September

As September arrives in La Valle - Wengen, Italy, the days begin to gently shorten, offering approximately 12 hours of daylight. This month marks a transition from the long, sun-soaked days of summer, where sunlight lingered for about 14 hours in August, to the crisp autumn evenings ahead. The gradual decline in daylight underscores a seasonal shift, as the sun sets earlier and nature prepares for winter's embrace. This steady decrease reflects a broader trend over the year, with daylight peaking in the summer months of May through July before tapering off into the cozy, quieter months of autumn and winter.

Average Daylight Hours in La Valle - Wengen for September

The chart illustrates the variation in daylight duration in La Valle - Wengen throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 59m10h 17m11h 56m13h 36m15h 3m15h 47m15h 24m14h 7m12h 30m10h 50m9h 21m8h 35m
Data source: La Valle - Wengen daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in La Valle - Wengen

In September, the wind in La Valle, Wengen, takes on a gentle whisper, with an average speed of just 1.1 m/s (2 mph). This slight breeze marks a transition from the more active summer months, where winds consistently hovered around 1.4 to 1.6 m/s (3 to 4 mph) from May to July. As autumn approaches, the air becomes more serene, reminiscent of the calming aftermath of summer's vibrant energy. Interestingly, September’s winds dip to their lowest point, paralleling a seasonal shift where tranquility prevails, inviting visitors to savor the breathtaking beauty of the surrounding alpine scenery. As the year progresses into October, the winds pick up again, settling back at 1.4 m/s (3 mph), hinting that the gentle September breeze is merely a fleeting pause before nature resumes its rhythm.

Average September Wind Speed in La Valle - Wengen

The chart displays monthly wind speed patterns in La Valle - Wengen, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.41.11.41.51.61.31.41.31.1 m/s1.41.21.5
Data source: La Valle - Wengen September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in La Valle - Wengen Compares to Other Months

The weather in La Valle - Wengen 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 La Valle - Wengen and find detailed weather information for every month.

The weather in September is significantly milder compared to January, with temperatures ranging from a chilly -6°C (22°F) at night to a pleasant 22°C (72°F) during the day, resulting in an average of 10°C (49°F). In contrast, January sees much harsher conditions, with nighttime lows plummeting to -26°C (-15°F) and daytime highs barely reaching 5°C (41°F), culminating in an average temperature of -7°C (19°F). Additionally, September experiences more precipitation, totaling 105 mm (4.1 in) over 14 days, while January has only 52 mm (2.0 in) over 9 days, albeit with higher humidity in January at 93% compared to September's 83%. For a detailed look at January weather conditions, visit La Valle - Wengen weather in January.

September and February present strikingly different weather patterns. In September, temperatures range from a minimum of -6°C (22°F) to a maximum of 22°C (72°F), with an average of 10°C (49°F). The month experiences relatively high humidity at 83% and sees a total precipitation of 105 mm (4.1 in) over approximately 14 days. In contrast, February is much colder, with minimum temperatures plummeting to -22°C (-7°F) and average temperatures around -4°C (25°F), peaking at 10°C (49°F). The humidity is slightly higher at 89%, but precipitation is less, totaling 52 mm (2.0 in) over about 8 days. For a closer look at February weather details, you can explore La Valle - Wengen weather in February.

The weather in September is generally milder compared to March, with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 22°C (72°F). In contrast, March experiences much colder temperatures, with a minimum of -22°C (-7°F) and an average of -1°C (30°F). While September sees higher precipitation levels at 105 mm (4.1 in) over 14 days, March has less rain, totaling 66 mm (2.6 in) over 11 days. The humidity is relatively similar, with September at 83% and March slightly higher at 86%. For more specific insights into March conditions, you can refer to La Valle - Wengen weather in March.

In comparing the weather between September and April, we notice distinct contrasts in temperature and precipitation. September boasts a milder average temperature of 10°C (49°F), with highs reaching 22°C (72°F), while April tends to be cooler, averaging only 2°C (36°F) and maxing out at 16°C (62°F). Precipitation is slightly higher in September, with 105 mm (4.1 in) over 14 days, compared to April's 84 mm (3.3 in) across 12 days. Interestingly, both months share the same humidity level of 83%, indicating that the air remains consistently moist during this transitional period. For more details on April weather, you can check La Valle - Wengen weather in April.

In September, the weather features a milder average temperature of 10°C (49°F) with a maximum of 22°C (72°F), making it generally warmer than May, which has an average temperature of 6°C (44°F) and a maximum of 23°C (73°F). However, May tends to experience slightly more precipitation, totaling 132 mm (5.2 in) over 21 days, compared to September's 105 mm (4.1 in) over 14 days. Humidity levels are also higher in September at 83%, whereas May sees a more moderate 78%. For more detailed insights into May weather, you can check La Valle - Wengen weather in May.

In September, temperatures range from a chilly minimum of -6°C (22°F) to a pleasant maximum of 22°C (72°F), with an average temperature of 10°C (49°F). The month sees significant rainfall, with 105 mm (4.1 in) distributed over 14 days, and relative humidity is high at 83%. In contrast, June offers slightly warmer conditions, with minimum temperatures reaching -2°C (29°F) and maximums soaring to 29°C (85°F), while the average is more temperate at 12°C (54°F). However, June is also wetter, receiving 133 mm (5.3 in) of rain over 17 days, but with slightly lower humidity at 79%. For more details on June weather, visit La Valle - Wengen weather in June.

In comparing the weather between September and July, September tends to be cooler with temperatures ranging from a minimum of -6°C (22°F) to a maximum of 22°C (72°F), while July enjoys warmer conditions with temperatures that vary from a minimum of 2°C (36°F) to a maximum of 27°C (81°F). Additionally, September experiences more moderate rainfall with 105 mm (4.1 in) over 14 days compared to July's higher precipitation of 147 mm (5.8 in) spread over 19 days. Humidity levels are quite similar, with September at 83% and July slightly lower at 82%. For a more detailed look at July weather in this region, you can check La Valle - Wengen weather in July.

In comparing the weather between September and August, September presents a cooler atmosphere with average temperatures ranging from -6°C (22°F) to a maximum of 22°C (72°F), while August is slightly warmer, with temperatures averaging from -4°C (26°F) to a maximum of 26°C (78°F). Precipitation in September totals 105 mm (4.1 in) over 14 days, which is notably less than the 177 mm (7.0 in) over 18 days experienced in August. Humidity levels remain high in both months, with September at 83% and August at 80%, contributing to a slightly damp feel as summer transitions to autumn. For a more detailed look at August weather, you can visit La Valle - Wengen weather in August.

In September, temperatures range from a chilly -6°C (22°F) at night to a warm 22°C (72°F) during the day, with an average of 10°C (49°F). The month is marked by 105 mm (4.1 in) of precipitation spread over 14 days and a humidity level of 83%. In contrast, October sees a notable drop in temperatures, with nighttime lows of -13°C (8°F) and daytime highs reaching only 18°C (64°F), averaging around 5°C (41°F). The precipitation remains similar at 104 mm (4.1 in), but the number of rainy days decreases to 9, while humidity slightly rises to 90%. For more detailed weather insights, you can visit La Valle - Wengen weather in October.

September and November present contrasting weather patterns. In September, temperatures range from a minimum of -6°C (22°F) to a maximum of 22°C (72°F), with an average of 10°C (49°F). The month experiences around 105 mm (4.1 in) of precipitation over 14 days, and the humidity is relatively lower at 83%. In contrast, November sees a drop in temperatures, with minimums reaching -20°C (-4°F) and a maximum of 14°C (58°F), averaging around 0°C (31°F). This month also has increased precipitation, totaling 127 mm (5.0 in) over 11 days, coupled with higher humidity at 89%. For more detailed insights, you can check La Valle - Wengen weather in November.

In September, temperatures range from a chilly -6°C (22°F) at night to a pleasant 22°C (72°F) during the day, with an average of 10°C (49°F). The month typically sees 105 mm (4.1 in) of precipitation over 14 days, accompanied by a humidity level of 83%. In contrast, December ushers in much colder weather, with minimum temperatures plummeting to -22°C (-8°F) and a maximum of only 5°C (41°F), resulting in an average temperature of -6°C (21°F). Precipitation remains quite similar at 106 mm (4.2 in) over 12 days but with an increase in humidity to 90%. For more details, check out La Valle - Wengen weather in December.

Compare La Valle - Wengen's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in La Valle - Wengen

September in La Valle - Wengen ushers in a shift from the lingering warmth of summer to a more temperate climate, characterized by its refreshing crispness and occasional showers. The blend of moderate temperatures and higher humidity creates a unique atmosphere, inviting outdoor exploration amid the stunning alpine scenery. While rainfall is more frequent than in the preceding months, the lush greenery brought about by these intermittent downpours adds to the region's charm. For those seeking a memorable experience, the transitional beauty of September offers a captivating backdrop for adventure. To learn more about what to expect throughout the year, visit La Valle - Wengen Climate.