September Weather in Hintersee, Austria

Last updated: February 26, 2025

September in Hintersee, Austria offers a captivating blend of seasonal charm, with temperature highs reaching 27°C (81°F) and a refreshing average of 13°C (56°F). Visitors can expect a crisp feel in the mornings, as the minimum temperature can dip to a chilly -2°C (28°F). This month is characterized by 15 days of precipitation, totaling 155 mm (6.1 in), contributing to lush landscapes. With humidity levels hovering around 74%, the atmosphere is both invigorating and enveloping, making September a unique time to experience the area's natural beauty.

September Temperature in Hintersee

September in Hintersee, Austria, marks the transition from the warmth of summer to the crispness of autumn. With minimum temperatures dipping to -2°C (28°F), the chill is a reminder that winter is on the horizon. However, the pleasant average of 13°C (56°F) and a comfortable maximum of 27°C (81°F) make this month ideal for outdoor activities amidst stunning fall foliage. This shift reflects a trend where temperatures gradually decline from the vibrant summer highs, yet the mild afternoons serve as a perfect backdrop for exploring the breathtaking landscapes of the region. As the days shorten, the beauty of Hintersee becomes even more enchanting, inviting both adventure-seekers and those in search of tranquility.

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

The chart illustrates September temperature patterns in Hintersee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec283237455262636355483831
Data source: Temperature data for Hintersee 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 Hintersee

In September, Hintersee experiences a notable surge in precipitation, with an average of 155 mm (6.1 in) of rainfall over 15 days. This marks a slight increase from the summer months, indicating a transition into the wetter autumn season. Following a wet August that averaged 200 mm (7.9 in), September's rainfall continues to contribute to the region's lush landscapes, while still presenting fewer rainy days compared to May, the wettest month of the year with 212 mm (8.3 in) across 22 days. As the days shorten and temperatures cool, the steady precipitation serves to rejuvenate the vibrant natural beauty of Hintersee, making it a picturesque time for those who appreciate its serene and refreshing atmosphere.

September Precipitation Trends in Hintersee

The chart displays monthly precipitation patterns in Hintersee, 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.
JanFebMarAprMayJunJulAugSepOctNovDec13911312710321218222620015514086168
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hintersee

In September, Hintersee, Austria experiences a notable transition as summer gently gives way to autumn. The humidity settles at 74%, a slight uptick from the drier months of July and August, which hovered around 68% and 74% respectively. This increase reflects the approach of the wetter season, signaling a return to the higher humidity levels seen in the earlier months of the year. As October looms with its much higher humidity of 88%, September serves as a bridge, hinting at the impending atmospheric shifts while still retaining a lingering warmth from summer. The gradual rise in humidity not only marks the changing seasons but also sets the stage for the lush landscapes Austria is renowned for.

September Average Humidity in Hintersee

This chart illustrates the average monthly humidity levels in Hintersee, 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%82%79%74%75%74%69%74%88%90%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hintersee

As summer fades into autumn, September in Hintersee, Austria, presents a noticeable shift in the UV Index, which registers at 7, categorizing it as high. This marks a slight decline from the peak of very high levels witnessed in July and August, where quick sunburns were a mere 15 minutes away. In September, outdoor enthusiasts can enjoy a safer burn time of 25 minutes under the sun, reminding us that while the risk is still elevated, it's more manageable as we transition towards cooler months. This change complements the overall trend observed throughout the year, where UV exposure peaks during the summer months, before gradually decreasing, with low levels returning by December. For detailed insights on the UV Index throughout the year, check out Hintersee UV Index.

Maximum UV Index Levels in Hintersee for September

The chart shows the monthly maximum UV Index (UVI) for Hintersee 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.
JanFebMarAprMayJunJulAugSepOctNovDec236789987432
Data source: Hintersee 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 Hintersee

September in Hintersee, Austria, embraces the beauty of late summer with 294 hours of sunshine, a graceful transition from the sun-drenched days of July, which boasts the highest at 396 hours. As autumn approaches, the daylight gently wanes, yet September still offers a vibrant glow, outshining the earlier months of the year, such as January with just 158 hours. The steady rise from the start of the year peaks in the warmer months, reflecting a clear trend: as the seasons shift from winter's embrace to summer's warmth, the allure of sunshine captivates, creating a picturesque setting for both locals and visitors. Enjoying the outdoors in this stunning alpine backdrop remains a delight, as the balance of light and tranquility begins to invite the crispness of autumn air.

Monthly Sunshine Duration in Hintersee: September Highlighted

The September sunshine duration represents the total number of hours Hintersee 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.
JanFebMarAprMayJunJulAugSepOctNovDec158h231h286h335h338h376h396h356h294h272h223h180h
Data source: Hintersee September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hintersee During September

As September rolls into Hintersee, Austria, the likelihood of basking in sunny weather noticeably increases, reaching 49%—the highest chance of sunshine since February. It's a significant uptick from the summer months, particularly when compared to the lower probabilities seen in July and August. This trend suggests that visitors can expect more pleasant days, making September an excellent choice for outdoor activities and enjoying the breathtaking landscapes. While the sun isn’t guaranteed, the improved odds in early autumn signal a promising transition towards milder weather, inviting travelers to take in the beauty of the region before winter sets in.

Percentage of Sunny Days in September in Hintersee

The chart illustrates the percentage of sunny days in Hintersee 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 Hintersee experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec17%45%41%39%26%40%34%30%49%38%31%22%
Data source: Hintersee September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hintersee in September

As September unfolds in Hintersee, Austria, the days remain pleasantly long, with approximately 12 hours of daylight. This marks a gentle decline from the height of summer, where July and June basked in 15 hours of sunlight. Transitioning from the sun-kissed warmth of summer into the crispness of autumn, September allows for ample time to enjoy the changing leaves and the stunning alpine landscapes. The daylight begins to taper off, a precursor to the shorter days ahead in October with only 10 hours of daylight. This rhythm of longer days stretching into summer and gradually shortening toward winter is a captivating reminder of the passage of time in this serene alpine setting.

Average Daylight Hours in Hintersee for September

The chart illustrates the variation in daylight duration in Hintersee throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 53m10h 14m11h 55m13h 39m15h 9m15h 54m15h 30m14h 11m12h 31m10h 47m9h 16m8h 28m
Data source: Hintersee daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Hintersee

As September arrives in Hintersee, Austria, a subtle shift in the average wind speed marks the transition into autumn. With gusts gently fading to 1.4 m/s (3 mph), this month showcases the quieting of summer breezes, a trend that resonates from the slightly higher speeds of summer's peak. Compared to the consistent 1.5 m/s (3 mph) of July and August, September heralds a softening, inviting a serene atmosphere ideal for reflective walks along the lake. Interestingly, as the year progresses, wind speeds tend to fluctuate slightly but remain relatively calm, creating a peaceful backdrop to the vibrant hues of fall foliage. This trend continues into October, where a gentle increase to 1.6 m/s (4 mph) hints at the seasonal dance of wind patterns, offering a delicate balance between the warmth of summer and the crispness of impending winter.

Average September Wind Speed in Hintersee

The chart displays monthly wind speed patterns in Hintersee, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.81.61.71.81.81.61.51.51.4 m/s1.61.41.6
Data source: Hintersee September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Hintersee Compares to Other Months

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

In comparing the weather of September and January, a stark contrast emerges. September features a wider temperature range, with minimums around -2°C (28°F) and maximums reaching 27°C (81°F), averaging a pleasant 13°C (56°F). This month also sees significant precipitation, with 155 mm (6.1 in) falling over 15 days, and humidity levels hovering at 74%. In contrast, January brings much colder conditions, with minimum temperatures plummeting to -21°C (-6°F) and maximums only reaching 11°C (52°F), resulting in an average of -2°C (28°F). Despite slightly lower precipitation at 139 mm (5.5 in) over 14 days, humidity is notably higher at 91%. For more details about January weather in the region, you can visit Hintersee weather in January.

September and February present contrasting weather patterns, characterized by significant differences in temperature and humidity. In September, temperatures range from a minimum of -2°C (28°F) to a maximum of 27°C (81°F), with an average of 13°C (56°F), making it a much milder month. The precipitation level is relatively high, with 155 mm (6.1 in) over about 15 days and a moderate humidity of 74%. In contrast, February sees much colder conditions, with temperatures dipping as low as -20°C (-4°F) and only reaching a maximum of 16°C (60°F). The average temperature sits at 0°C (32°F), and while there is less precipitation at 113 mm (4.4 in) over 14 days, the humidity is notably higher at 87%. For more detailed information on the weather during this winter month, you can check Hintersee weather in February.

When comparing the weather in September and March, notable differences emerge. September boasts a wider temperature range with a minimum of -2°C (28°F) and a maximum of 27°C (81°F), resulting in a comfortable average of 13°C (56°F). In contrast, March experiences colder temperatures, where the minimum can drop to -19°C (-1°F) and the maximum reaches only 18°C (64°F), leading to an average of just 3°C (37°F). Precipitation levels are relatively similar, with September receiving 155 mm (6.1 in) over 15 days and March slightly less at 127 mm (5.0 in) over 17 days, indicating a wetter environment during the latter month. Humidity is also higher in March at 82% compared to September's 74%. For those considering a trip, detailed insights can be found in this article about Hintersee weather in March.

In comparing the weather of September and April, notable differences emerge. September typically enjoys a milder climate with an average temperature of 13°C (56°F) and maximum highs reaching 27°C (81°F), while April is cooler, averaging just 7°C (46°F) and peaking at 25°C (77°F). Precipitation is more frequent in September, with 155 mm (6.1 in) over 15 days, compared to April's 102 mm (4.0 in) spanning 13 days. Additionally, while September has a humidity level of 74%, April's humidity is slightly higher at 79%. For more specific details, you can check the Hintersee weather in April.

Comparing the weather in September and May reveals some interesting differences. In September, temperatures range from a minimum of -2°C (28°F) to a maximum of 27°C (81°F), with a comfortable average of 13°C (56°F). The month experiences 155 mm (6.1 in) of precipitation over approximately 15 days, while humidity remains constant at 74%. In contrast, May presents cooler nights with a minimum temperature of -8°C (17°F) and similar maximums reaching up to 28°C (83°F), but with a slightly lower average of 11°C (53°F). Precipitation increases to 212 mm (8.3 in) across 22 days, maintaining the same humidity level of 74%. Overall, September offers warmer daytime temperatures, while May brings more rainfall. For a closer look at May's weather specifics, you can check Hintersee weather in May.

When comparing the weather in September and June, we see notable differences in temperature and precipitation. September boasts a cooler range, with minimum temperatures dropping to -2°C (28°F) and an average around 13°C (56°F), while June starts warmer, with minimums at 2°C (36°F) and an average of 17°C (63°F). The maximum temperatures in June peak at 32°C (90°F), significantly higher than September's maximum of 27°C (81°F). However, September experiences more precipitation, totaling 155 mm (6.1 in) over 15 days, compared to June’s 182 mm (7.1 in) over 17 days. Both months exhibit relatively high humidity, with September at 74% and June slightly higher at 75%. To explore further details about the weather during this time, you can visit Hintersee weather in June.

In comparing the weather between September and July, we see notable differences in temperature and precipitation patterns. September experiences cooler temperatures, with a minimum of -2°C (28°F) and an average of 13°C (56°F), while July boasts warmer conditions, with a minimum of 7°C (44°F) and an average of 17°C (63°F). Additionally, July tends to be wetter, receiving 226 mm (8.9 in) of precipitation over about 20 days compared to September's 155 mm (6.1 in) spread over 15 days. Interestingly, both months share the same humidity level of 74%, contributing to a consistently humid atmosphere. For a closer look at the specific weather conditions in July, you can visit Hintersee weather in July.

In comparing the weather of September and August, September brings a more varied temperature range with a minimum of -2°C (28°F) and a maximum of 27°C (81°F), while August offers warmer temperatures, ranging from a minimum of 4°C (40°F) to a maximum of 33°C (92°F). The average temperature in September is cooler at 13°C (56°F) compared to August's 17°C (63°F). Precipitation is also noteworthy; September sees 155 mm (6.1 in) over 15 days, while August experiences a higher total of 200 mm (7.9 in) across 18 days. Additionally, September's humidity is slightly higher at 74% compared to August's 68%. For those interested in the specific conditions of August, you can find more details at Hintersee weather in August.

September and October exhibit notable differences in weather patterns. While both months share a minimum temperature of -2°C (28°F), September generally enjoys warmer averages and highs, peaking at 13°C (56°F) and 27°C (81°F) respectively. In contrast, October's average temperature drops to 9°C (48°F) with a maximum of 22°C (72°F). Precipitation slightly decreases from 155 mm (6.1 in) in September to 140 mm (5.5 in) in October, with September experiencing rain on 15 days compared to 14 days in October. Additionally, October is characterized by increased humidity at 88%, compared to September’s 74%. For more detailed information on October conditions, you can explore Hintersee weather in October.

September and November present contrasting weather conditions. In September, temperatures range from a chilly -2°C (28°F) at night to a comfortable high of 27°C (81°F) during the day, with an average of 13°C (56°F). The month experiences considerable rainfall of 155 mm (6.1 in) over 15 days and a moderate humidity of 74%. In contrast, November sees colder temperatures, with minimums sinking to -12°C (12°F) and a much lower average of 3°C (38°F), peaking at 18°C (65°F). Precipitation decreases to 86 mm (3.4 in) over just 10 days, although humidity rises to a notable 90%. For more detailed November weather, you can check Hintersee weather in November.

September and December present contrasting weather conditions. In September, temperatures range from a minimum of -2°C (28°F) to a maximum of 27°C (81°F), with an average temperature of 13°C (56°F). This month experiences around 155 mm (6.1 in) of precipitation over 15 days, accompanied by a humidity level of 74%. In contrast, December sees much colder weather, with temperatures dropping to a minimum of -15°C (5°F) and only reaching a maximum of 12°C (55°F), resulting in an average temperature of -1°C (31°F). Precipitation increases slightly to 168 mm (6.6 in) over 18 days, along with higher humidity at 89%. For more detailed information on December weather, you can visit Hintersee weather in December.

Compare Hintersee's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Hintersee

September in Hintersee marks a transition from the warm summer months to the cooler embrace of autumn. With a maximum temperature that occasionally peaks at 27°C, the days still hold onto summer warmth, but the nights can dip unexpectedly low, touching freezing temperatures. This month also sees a marked increase in precipitation, with rain gracing the area on nearly half the days, contributing to the region's lush landscape. The humidity level remains high, adding to the freshness in the air as leaves begin to show their vibrant fall colors. For a more detailed exploration of what to expect throughout the year, visit Hintersee Climate.