September Weather in Tettnang, Germany

Last updated: February 26, 2025

In September, Tettnang, Germany, experiences a captivating blend of summer warmth and autumnal crispness. With maximum temperatures reaching 27°C (81°F) and an average of 16°C (60°F), the month offers pleasant days perfect for exploring the scenic surroundings. However, the minimum temperatures can dip to 4°C (40°F), reminding visitors of the changing seasons. Rainfall of 94 mm (3.7 in) over 11 days means occasional showers, contributing to the region’s lush greenery, while a relatively high humidity level of 83% adds to the refreshing atmosphere. This enchanting month is ideal for experiencing the tranquil beauty of Tettnang as it transitions into fall.

September Temperature in Tettnang

In September, Tettnang enjoys a gentle transition into autumn, characterized by moderate temperatures that invite outdoor exploration. With minimums around 4°C (40°F) and comfortable averages of 16°C (60°F), the early days of the month still retain a taste of summer warmth, peaking at a delightful 27°C (81°F). This blend of mild conditions creates an ideal backdrop for local festivities and scenic strolls through the region's lush landscapes. As the month progresses, the crispness of autumn begins to weave through the air, hinting at the cooler days to come, and setting the stage for a stunning display of fall foliage.

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

The chart illustrates September temperature patterns in Tettnang, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec343742505766686860524237
Data source: Temperature data for Tettnang 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 Tettnang

In September, Tettnang experiences a moderate precipitation amount of 94 mm (3.7 in) over 11 days, reflecting a slight decrease from the summer months when rainfall peaked in August at 143 mm. This transition into autumn is marked by a return to drier conditions, exemplified by the lower number of rainfall days compared to the more humid summer. While September remains one of the wetter months, it paves the way for the upcoming October, which typically maintains a similar average of around 100 mm. This pattern suggests a gradual shift in weather as the year progresses, indicating nature's rhythmic ebb and flow between the lushness of summer and the crispness of fall.

September Precipitation Trends in Tettnang

The chart displays monthly precipitation patterns in Tettnang, 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.
JanFebMarAprMayJunJulAugSepOctNovDec957684621241341171439410061117
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tettnang

As summer transitions to autumn in Tettnang, Germany, September brings a humidity level of 83%, a slight uptick from the 80% recorded in August. This month typically embodies a blend of lingering warmth and the onset of cooler breezes. The trend of gradually decreasing humidity from winter’s peak, starting at a staggering 92% in January, hints at the region’s shift from the damp chills of winter towards the gentler, yet still humid, conditions of fall. Interestingly, despite the drop in humidity over the months leading up to September, the levels remain relatively high compared to late spring and early summer, indicating that Tettnang’s weather continues to retain a certain moisture throughout the year.

September Average Humidity in Tettnang

This chart illustrates the average monthly humidity levels in Tettnang, 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.
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 Tettnang

As we move into September in Tettnang, Germany, the UV Index reflects the transition toward cooler weather, registering a 6, which signifies a high exposure category with a burn time of 25 minutes. This follows several months of very high UV levels during the summer, especially in June and July, where indices peaked at 9. Despite the reduction in sunlight intensity, September still demands careful skin protection, highlighting the importance of adapting to changing seasons. By comparing the data, it's evident that the UV Index gradually dips from its summer highs, yet remains a significant factor for outdoor activities. For more details on UV levels throughout the year, visit Tettnang UV Index.

Maximum UV Index Levels in Tettnang for September

The chart shows the monthly maximum UV Index (UVI) for Tettnang 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986431
Data source: Tettnang 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 Tettnang

As summer bids farewell and September unfolds in Tettnang, Germany, residents and visitors alike can revel in the warm embrace of sunshine, accumulating an impressive 315 hours of sunlight throughout the month. This marks a significant shift from the peak of July, which boasts 405 hours, but still offers ample rays as the days gradually shorten. Following a steady ascent from the year's start, with January basking in just 154 hours, September serves as a gentle reminder of summer's persistence, blending the fading heat of summer with the cool promise of autumn. As the transition continues into October, where sunlight hours dip further to 276, September stands out as a month of vibrant energy and idyllic weather, making it a perfect time for outdoor explorations in this charming corner of Bavaria.

Monthly Sunshine Duration in Tettnang: September Highlighted

The September sunshine duration represents the total number of hours Tettnang 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.
JanFebMarAprMayJunJulAugSepOctNovDec154h223h291h348h359h381h405h373h315h276h213h176h
Data source: Tettnang September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tettnang During September

In September, Tettnang, Germany, experiences a notable uptick in sunshine, with a 44% chance of sunny weather—the highest percentage since April. This transition into autumn signals a promising mix of milder days and ample sunlight, making September an appealing month for outdoor activities. Following the peak summer months which averaged around 33-35% sunshine, this slight increase hints at a rejuvenation of brightness before the cooler, cloudier days of fall set in. As the year progresses, the likelihood of clear skies diminishes, with the gloomy months of November and December following just around the corner.

Percentage of Sunny Days in September in Tettnang

The chart illustrates the percentage of sunny days in Tettnang 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 Tettnang experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec14%40%42%47%33%35%33%34%44%32%18%19%
Data source: Tettnang September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tettnang in September

As September arrives in Tettnang, Germany, the daylight duration settles at 12 hours, marking a gentle decline from the sun-drenched days of summer. This month showcases a transition, where the lingering warmth from August's 14 hours of daylight begins to wane, signaling the approach of autumn. Notably, September provides a balanced blend of daylight that still allows for outdoor activities, while hinting at the shorter days to come in October and November, which will drop to 10 and 9 hours respectively. As the year progresses, the gradual reduction in light offers a poignant reminder of nature’s rhythmic cycles, inviting residents to relish the crisp air and vibrant autumn colors ahead.

Average Daylight Hours in Tettnang for September

The chart illustrates the variation in daylight duration in Tettnang throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 54m10h 14m11h 55m13h 39m15h 8m15h 54m15h 30m14h 10m12h 31m10h 47m9h 16m8h 28m
Data source: Tettnang daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Tettnang

As summer transitions into autumn in Tettnang, Germany, the gentle September winds whisper a notable shift in the weather pattern. With an average wind speed of just 1.9 m/s (4 mph), September experiences the calmest breezes of the year, reflecting a steady decline from the breezier months of late spring and early summer. Interestingly, this dip marks the continuation of a trend observed since May, where wind speeds progressively decreased, hinting at the approaching stillness of autumn. As the trees begin to change their hues, the subdued winds create a serene atmosphere, inviting residents and visitors alike to relish the beauty of seasonal transition.

Average September Wind Speed in Tettnang

The chart displays monthly wind speed patterns in Tettnang, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.42.52.53.22.02.12.11.9 m/s2.12.32.5
Data source: Tettnang September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Tettnang Compares to Other Months

The weather in Tettnang 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 Tettnang and find detailed weather information for every month.

September and January present stark contrasts in weather. In September, temperatures typically range from a minimum of 4°C (40°F) to a maximum of 27°C (81°F), with an average of 16°C (60°F). The month sees around 94 mm (3.7 in) of precipitation over 11 days and humidity levels around 83%, creating a mild and often pleasant atmosphere. In sharp contrast, January experiences much colder conditions, with temperatures ranging from a frigid minimum of -11°C (12°F) to a maximum of 13°C (56°F) and an average of 1°C (34°F). The precipitation levels are similar at 95 mm (3.7 in) but occur over 12 days, accompanied by high humidity at 92%. For a more detailed understanding of January weather, you can check Tettnang weather in January.

September and February present contrasting weather conditions. In September, temperatures range significantly, with minimums reaching 4°C (40°F) and maximums climbing to 27°C (81°F), resulting in a comfortable average of 16°C (60°F). The month has a notable humidity level of 83% and experiences about 94 mm (3.7 in) of precipitation over 11 days. In contrast, February is much colder, featuring minimum temperatures plummeting to -11°C (13°F) and an average temperature of only 3°C (38°F). While maximums reach 16°C (61°F), the overall feel is frigid, compounded by a higher humidity of 89% and 76 mm (3.0 in) of rainfall across 13 days. For a more detailed look at February's climate, visit Tettnang weather in February.

September and March present contrasting weather experiences. In September, temperatures range from a refreshing 4°C (40°F) at night to a warm 27°C (81°F) during the day, with an average of 16°C (60°F). The month sees about 94 mm (3.7 in) of precipitation spread over 11 days, while humidity levels sit at a comfortable 83%. In contrast, March is much cooler, with minimum temperatures dropping to -11°C (12°F) and daily highs reaching around 20°C (68°F), averaging 6°C (43°F). Although it has slightly less precipitation at 84 mm (3.3 in), it does so over a greater number of days (15 days), contributing to the higher humidity of 87%. For more details on the weather conditions during March, you can check Tettnang weather in March.

When comparing the weather in September and April, notable differences emerge. September experiences a warmer temperature range, with minimums around 4°C (40°F) and maximums reaching 27°C (81°F), while April presents cooler conditions, featuring minimums as low as -3°C (28°F) and maximums peaking at 25°C (77°F). Precipitation is more prevalent in September, with 94 mm (3.7 in) over 11 days, compared to April's 62 mm (2.4 in) across 9 days. Humidity levels are similar in both months, with September at 83% and April slightly higher at 84%. For more detailed information about the weather specifics in April, you can check out Tettnang weather in April.

When comparing the weather of September and May, we can observe some notable differences. September boasts a wider temperature range, with a minimum of 4°C and a maximum of 27°C, while May shows slightly cooler temperatures, ranging from 2°C to a high of 29°C. Despite May's higher maximum temperature, September averages a bit warmer at 16°C compared to May's 14°C. Precipitation is also more prevalent in May, with 124 mm over 16 days versus September's 94 mm across 11 days, making the latter slightly drier. Additionally, September bears a higher humidity level at 83%, while May hovers around 80%. For more detailed insights about the weather in this month, check out Tettnang weather in May.

When comparing the weather in September and June, it is evident that June tends to be warmer and more humid. In June, temperatures range from a minimum of 8°C (47°F) to a maximum of 33°C (92°F), with an average of 19°C (66°F). In contrast, September sees cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 27°C (81°F), averaging 16°C (60°F). Additionally, June experiences slightly more rainfall, totaling 134 mm (5.3 in) over 14 days, compared to September's 94 mm (3.7 in) over 11 days. Despite the lower humidity in June at 82%, the warmth makes it feel more tropical, while September's higher humidity at 83% adds a dampness to the cooler air. For more detailed insights, you can visit Tettnang weather in June.

When comparing the weather in September and July, it's clear that July tends to be warmer and wetter. July boasts an average temperature of 20°C (68°F), with highs reaching up to 33°C (92°F) and lows around 10°C (51°F). In contrast, September sees a cooler average temperature of 16°C (60°F), with a maximum of 27°C (81°F) and a minimum of 4°C (40°F). Precipitation is also higher in July at 117 mm (4.6 in) over 15 days, compared to September’s 94 mm (3.7 in) over 11 days. Both months share comparable humidity levels at 83%. For more details on July weather, check out Tettnang weather in July.

In comparing the weather between August and September, it's clear that September experiences cooler temperatures, with a minimum of 4°C (40°F) compared to August's minimum of 9°C (49°F). The average temperature in September is also lower at 16°C (60°F), while August boasts a much warmer average of 20°C (68°F). August typically reaches higher maximum temperatures, peaking at 34°C (93°F), whereas September's maximum is a milder 27°C (81°F). However, September features more consistent rainfall with 94 mm (3.7 in) over 11 days, compared to August's 143 mm (5.6 in) over 15 days. Humidity remains high in both months, slightly favoring September at 83%, against 80% in August. For a closer look at August's weather specifics, you can explore this link: Tettnang weather in August.

September and October showcase a noticeable transition in weather conditions. In September, temperatures generally range from a minimum of 4°C (40°F) to a maximum of 27°C (81°F), with an average temperature of 16°C (60°F). The month sees around 94 mm (3.7 in) of precipitation over 11 days and maintains a humidity level of 83%. In contrast, October experiences cooler temperatures, with a minimum of 2°C (37°F) and a maximum of 22°C (72°F), leading to a lower average of 11°C (52°F). Precipitation increases slightly to 100 mm (3.9 in) over 13 days, and humidity rises to 90%. For a detailed look at October weather trends, check out Tettnang weather in October.

September and November present contrasting weather patterns. In September, temperatures are generally milder, with a minimum of 4°C (40°F) and an average of 16°C (60°F), reaching up to a comfortable maximum of 27°C (81°F). This month also sees higher precipitation levels at 94 mm (3.7 in) over 11 days, accompanied by a relative humidity of 83%. In contrast, November experiences cooler temperatures, with a minimum of -2°C (29°F) and an average of 6°C (42°F), peaking at 19°C (67°F). It has less precipitation at 61 mm (2.4 in) over the same number of days, but a slightly higher humidity level of 88%. For more details, you can check out Tettnang weather in November.

September and December present a stark contrast in weather conditions. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 27°C (81°F), making it relatively warm with an average of 16°C (60°F). The month sees about 94 mm (3.7 in) of precipitation over 11 days, while humidity levels hover around 83%, contributing to a pleasant atmosphere. Conversely, December experiences much colder temperatures, with a minimum of -5°C (23°F) and an average of just 3°C (37°F), peaking at 13°C (55°F). Precipitation increases to 117 mm (4.6 in) over 19 days, and humidity rises to 90%, creating a damp and chilly environment. For more insights on December weather, you can check Tettnang weather in December.

Compare Tettnang's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Tettnang

As September unfolds in Tettnang, the weather begins to shift, marking a transition from the warmth of summer to the cool embrace of autumn. Temperatures experience a gentle decline, offering a comfortable average that invites outdoor activities, while the occasional peaks remind us of the lingering summer heat. The month also brings a mix of increased precipitation, with several rainy days adding refreshing moisture to the landscape, resulting in a noticeable rise in humidity levels. This shift creates a unique blend of crisp mornings and mild afternoons, providing an ideal backdrop for enjoying the vibrant hues of early fall. For a deeper dive into how September fits into the broader patterns of the year, check out Tettnang Climate.