September Weather in Visp, Switzerland

Last updated: August 27, 2025

In September, the picturesque town of Visp, Switzerland experiences a blend of cool and mild temperatures, with maximums reaching up to 21°C (69°F) and averages settling around 8°C (48°F). As autumn approaches, temperatures can dip to a minimum of -4°C (25°F), inviting a crisp freshness in the air. Frequent rain is also part of the month’s charm, with precipitation totaling 116 mm (4.6 in) over approximately 16 days, leading to an humidity level of 83% that wraps the landscape in a gentle, foggy embrace. Ideal for those seeking to experience the beauty of early fall, September in Visp offers a refreshing and invigorating atmosphere.

September Temperature in Visp

In September, Visp, Switzerland transitions from the warmth of summer into the cool embrace of autumn. With a minimum temperature dipping to -4°C (25°F) and a comfortable average of 8°C (48°F), the month marks a shift as the region begins to prepare for the colder months ahead. The maximum temperature reaching 21°C (69°F) hints at lingering warmth, providing opportunities to enjoy the stunning alpine scenery before the chill sets in. This month's temperature profile indicates a steady cooling trend compared to the previous summer months, inviting visitors to experience the crispness of early fall while witnessing the vibrant colors of nature transitioning around them.

September Weather in Visp: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Visp, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Visp, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec162227344152555447392718
Data source: Temperature data for Visp 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 Visp

In September, Visp, Switzerland continues to experience a notable shift in weather patterns, marked by 116 mm (4.6 in) of precipitation spread over 16 days. This amount reflects a slight decrease from the more torrential summer months, yet remains consistent with the overall trend of a wet and vibrant late summer. Following the wettest months of May and June, September’s precipitation underscores the transition into autumn, where rain showers prepare the landscape for the changing seasons. As the foothills grow lush from the summer downpours, the lingering moisture sets the stage for the upcoming October rains, which typically see the precipitation levels rise significantly again. The balance of sunny days and rainfall in September is essential for the region's agricultural cycle, enriching the local flora as it prepares for the cool months ahead.

September Precipitation Trends in Visp

The chart displays monthly precipitation patterns in Visp, 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. In Visp, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec11575111113163173131152116195141156
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Visp

In September, Visp, Switzerland, experiences a slight uptick in humidity levels, reaching 83%. This represents a modest increase from the summer months, indicating a transition as autumn approaches. Overall, the humidity in Visp shows a gradual decline from a peak of 92% in January to 80% in August. However, as the year shifts into fall, we see a resurgence in moisture levels, with October projected to rise again to 90%. This trend hints at the dynamic nature of Visp's climate, where the abundant humidity characteristic of winter starts to return, setting the stage for the colder months ahead.

September Average Humidity in Visp

This chart illustrates the average monthly humidity levels in Visp, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Visp is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Visp

As September rolls into Visp, Switzerland, the UV Index begins to taper off from the summer highs, registering a moderate to high UV Index of 7. This slight decline from the extreme levels of summer means that sun exposure becomes less intense, allowing for a burn time of 25 minutes before the skin risks damage. Nevertheless, it’s crucial to maintain awareness and take precautions, as the sunny autumn days can still lead to significant UV exposure. Comparatively, the UV Index in September represents a more tempered experience than the scorching summers, yet it remains essential for outdoor enthusiasts to stay protected. For more details, visit Visp UV Index.

Maximum UV Index Levels in Visp for September

The chart shows the monthly maximum UV Index (UVI) for Visp 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. In September, the maximum UV index in Visp typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec348910111097632
Data source: Visp 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 Visp

September in Visp, Switzerland, offers a delightful transition into autumn with 323 hours of sunshine, showcasing a noticeable decline from the summer peak of 417 hours in July. This month is characterized by a gentle warmth, as it retains a significant amount of daylight compared to the preceding months, particularly August, which boasts 382 hours. As the sunny days of summer begin to wane, September still provides a comfortable balance of sunlight, hinting at the approaching cooler months while allowing residents and visitors alike to bask in the lingering warmth before winter sets in. Overall, September’s sunshine reflects a gradual shift from the vibrant summer days towards the more subdued, yet equally picturesque, fall scenery.

Monthly Sunshine Duration in Visp: September Highlighted

The September sunshine duration represents the total number of hours Visp 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.
JanFebMarAprMayJunJulAugSepOctNovDec181h236h306h353h365h389h417h382h323h287h231h205h
Data source: Visp September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Visp During September

In Visp, Switzerland, the likelihood of sunny weather in September reflects a transitional phase as summer fades into autumn. With a 23% chance of sunshine, September stands out as a month that sees a dip in clear days compared to the more vibrant summer months like July and August, where chances linger around 31% and 40%, respectively. This decline could suggest the onset of cloudier days ahead, though the slight uptick in October to 37% hints at the possibility of more favorable weather conditions. Overall, while September may not provide abundant sunshine, it retains a surprising charm as the landscapes shift with the changing season.

Percentage of Sunny Days in September in Visp

The chart illustrates the percentage of sunny days in Visp 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 Visp experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%36%43%40%31%22%31%40%23%37%28%38%
Data source: Visp September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Visp in September

As the summer warmth begins to wane in Visp, Switzerland, September marks a gentle transition in daylight duration, offering approximately 12 hours of daylight. This signals a shift from the peak summer months of June and July, where daylight stretches to a generous 15 hours, gradually receding into the cozy early autumn days. With daylight decreasing to 10 hours in October, it’s clear that September acts as a bridge, allowing residents to savor the lingering sunshine before the shorter days of fall take hold. This gradual decline from summer's brightness serves as a reminder of nature's rhythms, inviting everyone to enjoy the stunning landscapes bathed in golden hues while they can.

Average Daylight Hours in Visp for September

The chart illustrates the variation in daylight duration in Visp throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 3m10h 19m11h 56m13h 35m14h 59m15h 43m15h 20m14h 4m12h 29m10h 51m9h 24m8h 39m
Data source: Visp daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Visp

As September sets in Visp, Switzerland, the gentle caress of the wind becomes even more subtle, with an average speed dropping to 0.9 m/s (2 mph). This marks the lowest point of the year, continuing a trend of decreasing wind strength typical during late summer. In contrast to the brisk winds of January and October, which hover around 1.5 m/s (3 mph), September invites a serene stillness, ideal for leisurely strolls through the picturesque landscapes. As autumn approaches, the soft breeze signals a transition, hinting at the seasonal changes to come, while preserving the tranquility that defines this charming Swiss town.

Average September Wind Speed in Visp

The chart displays monthly wind speed patterns in Visp, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.51.21.21.21.31.11.11.10.9 m/s1.31.21.4
Data source: Visp September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Visp Compares to Other Months

Weather in Visp varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Visp, focusing on differences in temperature, rainfall, humidity, and UV levels.

In September, the weather in Visp features a mild temperature range, with minimums reaching -4°C (25°F) and maximums soaring up to 21°C (69°F), resulting in a comfortable average of 8°C (48°F). The month experiences significant precipitation, with 116 mm (4.6 in) spread over 16 days, leading to a relatively high humidity level of 83%. In contrast, January brings much colder conditions, with frigid temperatures that drop to a minimum of -25°C (-13°F) and peak at just 4°C (40°F), averaging -9°C (16°F). Despite having slightly less precipitation at 115 mm (4.5 in) spread over only 10 days, January features a higher humidity of 92%, contributing to an even chillier atmosphere. For more detailed insights on January weather, check out Visp weather in January.

When comparing the weather in September and February, there is a stark contrast in temperatures and precipitation patterns. September experiences milder temperatures, with a minimum of -4°C (25°F), an average of 8°C (48°F), and a maximum of 21°C (69°F). In contrast, February is much colder, with temperatures ranging from a minimum of -23°C (-9°F) to a maximum of 10°C (50°F), leading to an average of -5°C (23°F).

Precipitation is also more frequent in September, with 116 mm (4.6 in) over 16 days, compared to February, which sees 75 mm (2.9 in) across 12 days. Additionally, humidity levels are quite high in both months, with February being slightly higher at 89% compared to September's 83%. For more detailed information, you can explore Visp weather in February.

In comparing the weather between September and March, a notable difference is evident in temperature patterns. September experiences a milder climate, with average temperatures hovering around 8°C (48°F), while March is significantly colder, with an average of -3°C (27°F). Both months see similar precipitation levels, with September recording 116 mm (4.6 in) and March slightly less at 111 mm (4.4 in), occurring over the same number of days. Humidity levels are also comparable, with September at 83% and March a bit higher at 87%. For a detailed look at March weather, check out Visp weather in March.

When comparing the weather in September to that of April, it's clear that September is generally warmer with average temperatures reaching 8°C (48°F) compared to April's chilly average of just 1°C (35°F). September enjoys a wider temperature range, with highs of 21°C (69°F), while April's maximum temperature peaks at 14°C (58°F). Precipitation levels are similar, with September receiving 116 mm (4.6 in) over 16 days and April slightly less at 113 mm (4.4 in) across 12 days. Interestingly, both months exhibit high humidity levels, with September at 83% and April slightly higher at 84%. For more detailed information about April weather, you can check Visp weather in April.

In comparing the weather of September and May, we see notable differences in temperature and precipitation patterns. September enjoys a milder average temperature of 8°C (48°F), with a maximum reaching 21°C (69°F), while May sees a cooler average of 5°C (41°F) and a maximum of 19°C (67°F). Precipitation in May is also higher, totaling 163 mm (6.4 in) over 21 days compared to September's 116 mm (4.6 in) spread across 16 days. Humidity levels are slightly higher in September at 83%, compared to 80% in May. For more detailed information about May weather, you can explore Visp weather in May.

In comparing the weather between September and June, one can observe notable differences in temperature and precipitation. September typically experiences mild temperatures, with averages around 8°C (48°F) and maximums reaching 21°C (69°F), while June is slightly warmer, boasting an average of 11°C (52°F) and highs of 26°C (80°F). When it comes to precipitation, June sees a higher total of 173 mm (6.8 in) over 19 days, compared to September's 116 mm (4.6 in) over 16 days. Interestingly, the humidity levels remain fairly comparable, with September at 83% and June at 82%. For more detailed insights, you can check Visp weather in June.

The weather in September is generally cooler than in July, with average temperatures ranging from a minimum of -4°C (25°F) to a maximum of 21°C (69°F), compared to July's temperatures that range from a minimum of 2°C (35°F) to a maximum of 24°C (75°F). Precipitation levels are slightly lower in September, with 116 mm (4.6 in) over 16 days, while July experiences 131 mm (5.2 in) of precipitation over 19 days. Interestingly, both months have the same humidity level of 83%, creating a consistently moist atmosphere. For more details, check out Visp weather in July.

September experiences cooler temperatures compared to August, with a minimum of -4°C (25°F) and an average of 8°C (48°F), while August boasts milder conditions, starting at 1°C (35°F) and averaging 12°C (54°F). The maximum temperature in September reaches 21°C (69°F), slightly lower than August’s peak of 24°C (75°F). Additionally, September sees more frequent precipitation over 16 days, totaling 116 mm (4.6 in), although this is less than the 151 mm (6.0 in) recorded in August over 18 days. Humidity levels are quite similar, with September at 83% and August at 80%. For more detailed information on August weather, visit Visp weather in August.

September weather typically features milder temperatures, with averages around 8°C (48°F) and maximums reaching 21°C (69°F). This month experiences a significant amount of rain, totaling 116 mm (4.6 in) over 16 days, and boasts a humidity level of 83%. In contrast, October brings a notable drop in temperature, with minimums sinking to -8°C (19°F) and average highs of only 15°C (60°F). Precipitation increases to 195 mm (7.7 in) over 13 days, accompanied by a rise in humidity to 90%. For more detailed weather insights for October, you can check Visp weather in October.

In September, the weather tends to be milder, with temperatures ranging from a minimum of -4°C (25°F) to a maximum of 21°C (69°F), and an average temperature of 8°C (48°F). The month experiences about 116 mm (4.6 in) of precipitation over 16 days, and humidity sits at 83%. In contrast, November sees a significant drop in temperatures, with minimums dipping to -21°C (-6°F) and maximums reaching only 12°C (54°F), leading to an average temperature of -3°C (27°F). November's precipitation rises slightly to 141 mm (5.5 in) over the same number of days, with humidity increasing to 88%. Overall, November brings noticeably colder weather and increased humidity compared to September. For more specifics, check out the Visp weather in November.

In September, temperatures range from a chilly -4°C (25°F) at their lowest to a more comfortable 21°C (69°F) at their peak, with an average of 8°C (48°F). The month sees about 116 mm (4.6 in) of precipitation over 16 days and an humidity level of 83%. In contrast, December plunges into much colder territory, with minimum temperatures dropping to -25°C (-12°F) and a maximum of only 4°C (40°F), resulting in an average of -8°C (18°F). Precipitation increases to 156 mm (6.2 in) over 17 days, accompanied by a higher humidity of 90%. For more detailed information, you can check out Visp weather in December.

Compare Visp's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Visp

As September arrives in Visp, the landscape transforms under cooler temperatures and increased moisture, marking a definitive shift from the warmer summer months. With a blend of mild highs and chilly lows, the weather reflects the transitioning season, providing a refreshing backdrop for both locals and visitors. In contrast to the drier, hotter summer days, September sees more frequent rainfall, with nearly half the month experiencing drizzles that contribute to the region's lush atmosphere. As humidity levels rise, the air feels crisp yet invigorating, inviting outdoor activities amid the stunning autumn scenery. For more insights into the changing climate, explore Visp Climate.