September Weather in Frohnleiten, Austria

Last updated: February 26, 2025

September in Frohnleiten, Austria offers a vivid display of shifting weather patterns as summer transitions into autumn. With maximum temperatures reaching up to 27°C (81°F) and an average of 13°C (56°F), the month is characterized by warm days that gradually cool down, with minimum temperatures dipping to -1°C (30°F). Rainfall is a regular occurrence, accumulating to 111 mm (4.4 in) over 12 days, creating a humid environment that averages around 65%. This blend of warm days and cool nights, punctuated by refreshing rain, makes September a dynamic month to experience in this picturesque locale.

September Temperature in Frohnleiten

In Frohnleiten, Austria, September marks a gentle transition toward autumn, with temperatures gradually cooling from the warmth of summer. The month typically sees minimum temperatures around -1°C (30°F), while the average hovers at a comfortable 13°C (56°F), making it an ideal time for outdoor activities. With maximums reaching up to 27°C (81°F), sunny days still linger, offering a perfect blend of warmth and the fresh crispness of fall. This trend of cooling temperatures signifies the winding down of the warmer months, inviting visitors to experience the stunning autumn foliage as it begins to emerge, transforming the landscape into a vibrant tapestry of colors.

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

The chart illustrates September temperature patterns in Frohnleiten, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec283338465363646456483930
Data source: Temperature data for Frohnleiten generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Frohnleiten

September in Frohnleiten, Austria, marks a transition as summer gives way to autumn, reflected in the precipitation totals. This month receives an average of 111 mm (4.4 in) of rain over approximately 12 days, making it one of the wetter months of the year. While this amount is significantly less than the previous two months, August and May, both notorious for their heavy rainfall, September maintains a notable balance, mirroring the gradual decrease in precipitation typically observed from August's peak of 139 mm (5.5 in) to October's more moderate 59 mm (2.3 in). These rainfall patterns illustrate not only seasonal shifts but also set the stage for the drier months ahead, while still providing lush greenery as nature prepares for the colder days.

September Precipitation Trends in Frohnleiten

The chart displays monthly precipitation patterns in Frohnleiten, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3540446212795116139111597263
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Frohnleiten

As September rolls into Frohnleiten, Austria, the air begins to shift from the dry summer months, with humidity levels rising to 65%. This represents a notable change from the crispness of August, where the humidity dipped to a refreshing 60%. Although September maintains relatively moderate humidity compared to the more extreme conditions of winter, it marks the beginning of a gradual increase that will continue through the fall. As we transition into October, humidity levels climb back up to 84%, aligning with the pattern where the latter months of the year consistently showcase higher moisture content, peaking in winter. This trend highlights the seasonal ebb and flow of humidity, contributing to the unique climate experience in Frohnleiten.

September Average Humidity in Frohnleiten

This chart illustrates the average monthly humidity levels in Frohnleiten, 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.
JanFebMarAprMayJunJulAugSepOctNovDec90%84%78%73%71%73%70%60%65%84%89%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Frohnleiten

In September, Frohnleiten experiences a UV Index of 6, indicating a high exposure category with a burn time of approximately 25 minutes. This marks a noticeable decline from the peak summer months, where the index soared to 9 in both July and June, showcasing the importance of sun protection during late summer activities. As the days grow shorter and cooler, the UV levels drop, yet they remain significant, requiring awareness and caution. With this transition, September stands as a reminder that even as we inch closer to autumn, the sun can still pack a punch. Stay informed about the UV levels throughout the year by checking the Frohnleiten UV Index.

Maximum UV Index Levels in Frohnleiten for September

The chart shows the monthly maximum UV Index (UVI) for Frohnleiten 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
Data source: Frohnleiten 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 Frohnleiten

In September, Frohnleiten basks in a delightful 306 hours of sunshine, marking a smooth transition from the summer glow into the cooler months. This amount, while slightly less than the sun-drenched peaks of July and June, still signifies a robust brightness compared to the earlier months of the year. As autumn approaches, the sun gradually begins to retreat, consistently falling from 349 hours in May to the softer light of October with 279 hours. The overall trend reflects a gradual decline in sunshine hours as the year progresses, reminding us of the fleeting warmth of summer while inviting the crisp beauty of autumn.

Monthly Sunshine Duration in Frohnleiten: September Highlighted

The September sunshine duration represents the total number of hours Frohnleiten 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.
JanFebMarAprMayJunJulAugSepOctNovDec169h228h300h339h349h389h412h374h306h279h211h198h
Data source: Frohnleiten September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Frohnleiten During September

In September, Frohnleiten, Austria, enjoys a 46% chance of sunshine, making it one of the more promising months for clear skies as summer transitions into autumn. This slight dip from the peak summer months of June and July, which hover around 43%, hints at a subtle but notable shift in weather patterns. Overall, the chance of sun shows a generally positive trend from the spring's lower percentages, reflecting the lingering warmth as the days begin to shorten. With this favorable forecast, September provides a delightful opportunity for outdoor activities, as the sun continues to shine brightly enough to bridge the summer's end and the onset of fall.

Percentage of Sunny Days in September in Frohnleiten

The chart illustrates the percentage of sunny days in Frohnleiten 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 Frohnleiten experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec24%43%48%37%30%47%43%37%46%33%29%26%
Data source: Frohnleiten September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Frohnleiten in September

As summer fades into autumn, September in Frohnleiten, Austria, showcases a transition in daylight hours with 12 hours of sunlight—a slight decrease from the vibrant 14 hours experienced in August. This gradual decline marks the end of the longer days, as the region shifts toward the shorter daylight of fall and winter. Looking back at the year, the lengthening days from January’s 8 hours weave their way through spring and summer, peaking in June and July at 15 hours, before the subtle retreat begins. This rhythm of daylight not only highlights the beauty of seasonal change but also sets the tone for the cozy, introspective months ahead.

Average Daylight Hours in Frohnleiten for September

The chart illustrates the variation in daylight duration in Frohnleiten throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 56m10h 16m11h 56m13h 38m15h 6m15h 51m15h 27m14h 9m12h 30m10h 49m9h 18m8h 31m
Data source: Frohnleiten daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Frohnleiten

As autumn gently approaches Frohnleiten, Austria, September brings with it a calmness reflected in its average wind speed, which hovers at a modest 1.5 m/s (3 mph). This slight dip mirrors the gradual decline seen in the summer months, where the winds were slightly breezier. Notably, April enjoys the highest winds at 2.2 m/s (5 mph), injecting a sense of vivacity into the landscape. In contrast, September's winds align closely with those of the preceding August, creating a tranquil atmosphere perfect for leisurely strolls along the picturesque riverbanks. As the year transitions into the cooler months, the steady drop in wind speeds suggests a more serene environment, inviting residents and visitors alike to embrace the beauty of the changing season.

Average September Wind Speed in Frohnleiten

The chart displays monthly wind speed patterns in Frohnleiten, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.61.92.21.91.71.81.51.5 m/s1.61.31.8
Data source: Frohnleiten September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Frohnleiten Compares to Other Months

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

September and January present starkly contrasting weather conditions. In September, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 27°C (81°F), with an average of 13°C (56°F). The month sees a significant amount of rainfall, totaling 111 mm (4.4 in) over 12 days, while humidity hovers around 65%. In contrast, January experiences much colder conditions, with temperatures plummeting to a minimum of -20°C (-3°F) and only reaching a maximum of 11°C (51°F), resulting in an average temperature of -2°C (28°F). Precipitation is lighter in January, at just 35 mm (1.4 in) over 9 days, but the humidity rises to 90%. For a closer look at January's weather specifics, please refer to Frohnleiten weather in January.

September and February present stark contrasts in weather patterns. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 27°C (81°F), with an average of 13°C (56°F). The month experiences considerable precipitation, totaling 111 mm (4.4 in) over approximately 12 days, accompanied by a relatively moderate humidity level of 65%. In contrast, February brings much colder conditions, with temperatures dipping as low as -19°C (-1°F), averaging around 0°C (33°F), and peaking at 17°C (63°F). The month has significantly less rainfall, with only 40 mm (1.6 in) across about 9 days, but higher humidity at 84%. For more detailed insights, you can explore Frohnleiten weather in February.

September and March exhibit striking contrasts in weather conditions. September typically has milder temperatures with an average of 13°C (56°F), peaking at a warm 27°C (81°F), while March struggles to reach an average of 3°C (38°F) and maxing out at 20°C (69°F). Additionally, September experiences more precipitation, totaling 111 mm (4.4 in) over 12 days, compared to March, which has only 44 mm (1.7 in) over 9 days. Humidity levels are also different, as September maintains a relative humidity of 65%, whereas March has a higher humidity level of 78%. For a more detailed look at March weather, check out Frohnleiten weather in March.

When comparing the weather in September and April, several notable differences emerge. September tends to be warmer, with average temperatures around 13°C (56°F) and maximums reaching 27°C (81°F), while April's average hovers at a cooler 8°C (46°F), with a maximum of 25°C (77°F). Additionally, September is slightly wetter, receiving 111 mm (4.4 in) of precipitation over 12 days, compared to April's 62 mm (2.4 in) over 11 days. April also experiences higher humidity levels at 73%, in contrast to September's 65%. For more detailed information, you can check Frohnleiten weather in April.

In comparing the weather of September and May, both months show a range of cool to warm temperatures, but they each have distinct characteristics. September experiences a slightly broader temperature range, with a minimum of -1°C (30°F) and a maximum of 27°C (81°F), resulting in an average temperature of 13°C (56°F). It also averages 111 mm (4.4 in) of precipitation over 12 days and maintains a humidity level of 65%. In contrast, May has a minimum temperature of -2°C (29°F) and a maximum of 26°C (79°F), leading to an average of 12°C (53°F). Despite being wetter, May adds up to 127 mm (5.0 in) of rainfall spread across 20 days, contributing to a higher humidity level of 71%. For more detailed insights on May weather, visit Frohnleiten weather in May.

When comparing the weather in September and June, we observe notable differences in both temperature and precipitation. September features a wider temperature range with a minimum of -1°C (30°F) and an average of 13°C (56°F), peaking at 27°C (81°F). In contrast, June begins with a slightly higher minimum temperature of 2°C (37°F) and boasts a warmer average of 17°C (63°F), reaching up to 32°C (90°F). While September sees total precipitation of 111 mm (4.4 in) over 12 days, June has a bit less with 95 mm (3.7 in) across 15 days. Additionally, June is more humid at 73%, compared to September’s 65%, making it feel warmer and more muggy. For more details on June conditions, you can check Frohnleiten weather in June.

In comparing the weather between September and July, September presents a wider range of temperatures, with minimums dropping to -1°C (30°F) and maximums reaching 27°C (81°F), resulting in a more moderate average of 13°C (56°F). In contrast, July features warmer temperatures, with minimums of 7°C (44°F) and maximums soaring to 32°C (90°F), leading to an average of 18°C (65°F). Both months experience significant precipitation, with September recording 111 mm (4.4 in) over 12 days and July having slightly more at 116 mm (4.6 in) over 18 days, although July is slightly more humid at 70%, compared to September's 65%. For more details on July weather, check this link: Frohnleiten weather in July.

In comparing the weather of September and August, September tends to be cooler with average temperatures ranging from a minimum of -1°C (30°F) to a maximum of 27°C (81°F), while August sees milder conditions with temperatures ranging from 5°C (41°F) to 32°C (89°F). While September has a lower average temperature, it experiences more precipitation on a fewer number of days, totaling 111 mm (4.4 in) across 12 days compared to August's 139 mm (5.5 in) over 17 days. Additionally, September's humidity is slightly higher at 65%, whereas August maintains a lower level at 60%. For more detailed information on August weather, you can check Frohnleiten weather in August.

In comparing the weather of September and October, we see a notable shift in temperatures and precipitation patterns. September boasts a wider temperature range, with minimums around -1°C (30°F) and maximums reaching up to 27°C (81°F), while averaging 13°C (56°F). The month experiences more rainfall, totaling 111 mm (4.4 in) over 12 days, coupled with a moderate humidity level of 65%. In contrast, October brings cooler temperatures, with minimums dipping to -2°C (29°F) and averaging 9°C (48°F), while the maximums are lower at 23°C (73°F). Precipitation decreases to 59 mm (2.3 in) occurring over 9 days, but humidity rises significantly to 84%. For those interested in detailed patterns, check out the Frohnleiten weather in October.

When comparing the weather in September and November, there are notable differences in temperature and humidity. September typically experiences a wider temperature range, with minimums around -1°C (30°F) and maximums reaching 27°C (81°F), resulting in a pleasant average of 13°C (56°F). In contrast, November sees lower temperatures, with a minimum of -7°C (20°F) and a cooler average of 4°C (39°F), as the maximum temperature only reaches 18°C (65°F). Regarding precipitation, September is wetter, with 111 mm (4.4 in) falling over 12 days, while November sees a decrease in precipitation to 72 mm (2.8 in) across 10 days. Additionally, November's humidity increases significantly to 89%, compared to September's 65%, giving the former a distinctly more damp feel. For a more detailed look at November weather in Frohnleiten, you can visit Frohnleiten weather in November.

The weather in September is considerably milder than in December, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 27°C (81°F) and an average of 13°C (56°F). In contrast, December brings much colder conditions, with temperatures dropping as low as -13°C (8°F) and averaging -1°C (31°F), peaking at only 11°C (52°F). Additionally, September sees higher humidity at 65% and more precipitation at 111 mm (4.4 in) over 12 days, compared to December's 63 mm (2.5 in) and a similar number of rainy days. The increased humidity in December also contributes to a chillier feel, making it a stark transition from the warmth of fall. For detailed insights on December weather, you can refer to Frohnleiten weather in December.

Compare Frohnleiten's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Frohnleiten

As summer gives way to autumn in Frohnleiten, September introduces a refreshing transition in weather. The month showcases a delightful variety of temperatures, ranging from crisp coolness to warm afternoons, making it a unique time of the year. With an average temperature that hovers around a mild 13°C, the weather becomes more unpredictable, bringing with it an increase in precipitation days, totaling about 12. The humidity level of 65% adds a touch of moisture to the air, enhancing the vibrant colors of the landscape as nature prepares for the change of seasons. For those looking to explore the subtle weather shifts, this month contrasts beautifully with the scorching heat of summer and the frosty chill of winter. Discover more about the overall climate in this charming town at Frohnleiten Climate.