September Weather in Altaussee, Austria

Last updated: February 26, 2025

In September, Altaussee, Austria experiences a diverse climate, where temperatures fluctuate between a maximum of 26°C (80°F) and a minimum of -2°C (29°F), resulting in an average of 12°C (55°F). The month is marked by significant rainfall, with 160 mm (6.3 in) accumulated over 16 days, contributing to the region's lush landscapes. Humidity levels hover around 74%, creating a refreshing atmosphere for both residents and visitors. This unique blend of warm days and cooler nights makes September a transitional month, perfect for exploring the stunning autumn colors of the Austrian countryside.

September Temperature in Altaussee

In September, Altaussee, Austria, experiences a gentle transition into autumn, characterized by a minimum temperature of -2°C (29°F) and a pleasant average of 12°C (55°F). This month sees a noticeable warming trend as the days gradually become milder, peaking at a maximum of 26°C (80°F). Compared to the previous summer months, where temperatures consistently hovered around the 30°C mark, September offers a refreshing reprieve as the crisp air sets in. The blend of warm days and cooler nights creates an invigorating atmosphere, perfect for enjoying the stunning alpine scenery that surrounds this charming lakeside village.

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

The chart illustrates September temperature patterns in Altaussee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec273136435161626254473730
Data source: Temperature data for Altaussee 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 Altaussee

September in Altaussee, Austria, sees a notable increase in precipitation, with 160 mm (6.3 in) of rain recorded over 16 days. As summer transitions to autumn, this month reflects a shift in weather patterns, showcasing a significant drop from the peak of 211 mm (8.3 in) in July but remaining above the lower fall months. The rainfall serves to nourish the vibrant landscape, setting the stage for vivid autumn colors. With the number of precipitation days at a moderate 16, September strikes a balance, offering both the lushness of late summer and the crispness of approaching fall, making it a picturesque time for nature lovers.

September Precipitation Trends in Altaussee

The chart displays monthly precipitation patterns in Altaussee, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1341071209220517921119316013585161
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Altaussee

September in Altaussee, Austria, marks a subtle transition in humidity as summer wanes and autumn approaches. With an average humidity of 74%, September experiences a slight uptick compared to the previous months of July and August, which boasted 74% and 68% humidity, respectively. This increase signals the onset of wetter conditions typical of the fall season. Remarkably, this month serves as a bridge between the drier summer months and the significantly more humid conditions in October, which jumps to 88%. Such trends highlight Altaussee's characteristic fluctuations, where the humidity begins to rise in anticipation of the colder months ahead, inviting a more refreshing atmosphere before the winter chills set in.

September Average Humidity in Altaussee

This chart illustrates the average monthly humidity levels in Altaussee, 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 Altaussee

As September arrives in Altaussee, Austria, the UV Index reflects a transition toward milder days, with a value of 7, placing it in the high exposure category. This means that while the sun's rays can still be intense, the risk of harm from unprotected skin is somewhat reduced compared to the peak summer months. The burn time increases to 25 minutes, offering a bit more leeway for outdoor activities. As the season shifts, September serves as a reminder to stay vigilant and protect your skin, making it a perfect time to enjoy the warm hues of autumn while observing sun safety guidelines. For more detailed forecasts and tips, visit Altaussee UV Index.

Maximum UV Index Levels in Altaussee for September

The chart shows the monthly maximum UV Index (UVI) for Altaussee 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: Altaussee 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 Altaussee

As summer fades into fall, September in Altaussee, Austria, boasts a delightful 290 hours of sunshine, marking a gentle decline from the sun-drenched heights of July's 396 hours. This transition reflects the region's natural rhythm, as the days grow shorter and the vibrant hues of autumn begin to surface. Remarkably consistent, the sunshine in September remains robust compared to the earlier months—outshining January's mere 155 hours and even October’s subdued 269 hours. This blend of warmth and radiance invites both locals and travelers to revel in the breathtaking landscapes as they bathe in the golden rays, making it a perfect time to explore the enchanting beauty of the area before winter's chill sets in.

Monthly Sunshine Duration in Altaussee: September Highlighted

The September sunshine duration represents the total number of hours Altaussee 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.
JanFebMarAprMayJunJulAugSepOctNovDec155h230h280h335h336h374h396h355h290h269h222h177h
Data source: Altaussee September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Altaussee During September

When it comes to sunny weather in Altaussee, Austria, September stands out as a particularly bright month, boasting a 48% chance of sunshine. This marks a notable increase from the summer months, where July and August see lower probabilities of clear skies at 35% and 30%, respectively. As the season transitions from summer to autumn, the weather becomes more inviting, making September an appealing time for outdoor activities. Interestingly, this month surpasses the averages of both May and June, suggesting a trend towards more favorable weather as the year progresses into fall. With a compelling blend of warmth and sunshine, September truly offers a delightful experience for both locals and visitors alike.

Percentage of Sunny Days in September in Altaussee

The chart illustrates the percentage of sunny days in Altaussee 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 Altaussee experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16%43%40%38%26%41%35%30%48%37%31%22%
Data source: Altaussee September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Altaussee in September

As September arrives in Altaussee, Austria, daylight begins to wane, offering approximately 12 hours of sunlight each day. This marks a gentle decline from the peak of 15 hours experienced in the enchanting summer months of May through July. While the vibrant long days of summer slowly fade, September maintains a comfortable balance of light, bridging the transition to autumn. As the leaves start to turn and the scenery shifts, the gradual reduction in daylight hints at the cozy, introspective season ahead, encouraging both locals and visitors to savor the remaining warmth and splendor of nature.

Average Daylight Hours in Altaussee for September

The chart illustrates the variation in daylight duration in Altaussee throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 52m10h 13m11h 55m13h 40m15h 10m15h 56m15h 31m14h 11m12h 31m10h 47m9h 15m8h 26m
Data source: Altaussee daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Altaussee

As September ushers in the gentle embrace of autumn in Altaussee, Austria, the average wind speed dips slightly to 1.5 m/s (3 mph), capturing the calm after the lively summer months. This trend of slowly decreasing wind speeds from the warmer season, where July and August both recorded 1.5 m/s (3 mph) and 1.6 m/s (4 mph) respectively, signals a transition toward the tranquil beauty of fall. With each passing month, the winds whisper softer tunes, reinforcing the soothing ambiance that the alpine landscape is renowned for. As nature prepares for the cooler days ahead, September's delicate breezes invite visitors to enjoy the serene surroundings, making it an ideal time for peaceful reflection and exploration.

Average September Wind Speed in Altaussee

The chart displays monthly wind speed patterns in Altaussee, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.91.71.81.91.91.61.51.61.5 m/s1.71.51.8
Data source: Altaussee September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Altaussee Compares to Other Months

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

When comparing the weather in September and January, significant contrasts emerge. September boasts a milder climate with a minimum temperature of -2°C, averaging around 12°C and reaching a maximum of 26°C. In contrast, January presents a much colder scene, characterized by a minimum of -19°C, an average of -3°C, and a maximum of only 8°C.

Precipitation is notable in both months, with September receiving 160 mm over 16 days and January slightly less at 134 mm across 14 days. Additionally, humidity levels are higher in January at 91% compared to September's 74%. This stark temperature and humidity difference highlights the shift from the tail end of summer to the depth of winter. For a closer look at January weather specifics, check out Altaussee weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a chilly minimum of -2°C (29°F) to a pleasant average of 12°C (55°F), peaking at a warm 26°C (80°F). This month experiences significant precipitation, with 160 mm (6.3 in) over 16 rainy days and an average humidity of 74%. In contrast, February is notably colder, with temperatures dipping to a minimum of -19°C (-2°F) and averaging around 0°C (32°F), reaching a maximum of 15°C (58°F). Although it has less rainfall, with 107 mm (4.2 in) occurring over 15 days, February's humidity is higher at 87%, adding a brisk chill to the air. For more detailed information on February weather, you can check Altaussee weather in February.

Comparing the weather in September and March reveals notable differences in temperature and precipitation. September enjoys a milder average temperature of 12°C (55°F), peaking at a comfortable 26°C (80°F), while March is much colder, with an average of only 2°C (36°F) and a maximum of 17°C (62°F). Precipitation levels also vary, with September receiving 160 mm (6.3 in) over 16 days, compared to March's 120 mm (4.7 in) spread across 17 days. Additionally, March's humidity of 82% surpasses September's 74%, contributing to a colder and more damp feel during that month. For more specific details about March weather in the region, you can check Altaussee weather in March.

In comparing the weather between September and April, we find notable differences in temperature and precipitation. September presents a milder climate with an average temperature of 12°C (55°F), spanning from a chilly minimum of -2°C (29°F) to a warm maximum of 26°C (80°F). In contrast, April is cooler overall, with an average temperature of 6°C (44°F) and a minimum that can drop to -10°C (14°F), though it can still reach a pleasant maximum of 23°C (74°F). Precipitation levels also differ, as September experiences more rainfall at 160 mm (6.3 in) over 16 days, while April sees 92 mm (3.6 in) over slightly fewer days, totaling 13. Humidity levels are relatively similar, with September at 74% and April slightly higher at 79%. For a more detailed look, you can explore Altaussee weather in April.

When comparing the weather in September and May, there are noticeable differences in temperatures and precipitation patterns. September tends to be warmer, with average temperatures peaking at 12°C (55°F) and reaching a maximum of 26°C (80°F), while May shows slightly cooler averages, peaking at 11°C (51°F). However, May receives more rainfall, with a total of 205 mm (8.1 in) over 23 days compared to September's 160 mm (6.3 in) across 16 days. Both months share a humidity of 74%, but the overall climate feels more variable in May, alongside these fluctuations in temperature and precipitation. For those interested in exploring the weather specifics during this time, more detailed information can be found here: Altaussee weather in May.

In comparing the weather of September and June, we see notable differences in temperature and precipitation patterns. September experiences cooler temperatures with a minimum of -2°C (29°F) and an average of 12°C (55°F), while June starts warmer, with a minimum of 1°C (35°F) and an average of 16°C (61°F). The maximum temperatures in June reach up to 31°C (88°F), significantly higher than September’s peak of 26°C (80°F). Both months have considerable rainfall, with September receiving 160 mm (6.3 in) over 16 days and June slightly wetter at 179 mm (7.1 in) over 18 days. Humidity levels are comparable, hovering around 74% in September and 75% in June. For a more detailed look at June weather in Altaussee, you can check out Altaussee weather in June.

When comparing the weather between September and July, it is clear that July is generally warmer, with average temperatures around 16°C (62°F) and maximums reaching up to 32°C (90°F). In contrast, September experiences cooler conditions, with average temperatures of 12°C (55°F) and a maximum of 26°C (80°F). Additionally, July tends to receive more precipitation, totaling 211 mm (8.3 in) over 20 days, compared to September's 160 mm (6.3 in) across 16 days. Both months share a humidity level of 74%, making for a consistently humid climate. For a detailed look at July weather, check out Altaussee weather in July.

In comparing the weather between September and August, September brings cooler temperatures with a minimum of -2°C (29°F) and an average of 12°C (55°F), while August enjoys milder conditions, featuring a minimum of 4°C (39°F) and an average of 17°C (63°F). The maximum temperature in August can peak at 32°C (90°F), significantly warmer than September's maximum of 26°C (80°F). Regarding precipitation, September receives 160 mm (6.3 in) over 16 days, compared to August's 193 mm (7.6 in) over 19 days, indicating a slightly wetter August but more humid conditions in September at 74% relative humidity. For a deeper look into August's weather specifics, you can visit Altaussee weather in August.

In comparing the weather between September and October, we see a notable shift in temperatures and precipitation patterns. September experiences a wider temperature range, with average highs of 26°C (80°F), while October sees cooler conditions, with an average max of just 21°C (71°F) and a drop in average temperature to 8°C (47°F). Both months start with similar minimum temperatures of around -2°C, but October brings increased humidity at 88%, compared to September's 74%. Precipitation is also slightly reduced in October at 135 mm (5.3 in) over 14 days, compared to September's 160 mm (6.3 in) over 16 days. This gradual transition reflects the onset of autumn conditions, inviting a cozy atmosphere. For more specific weather insights, you can check Altaussee weather in October.

September and November present quite contrasting weather patterns. In September, temperatures range from a minimum of -2°C (29°F) to a maximum of 26°C (80°F), with an average of 12°C (55°F). The month experiences significant rainfall, totaling 160 mm (6.3 in) over 16 days and a humidity level of 74%. In contrast, November sees much cooler temperatures, with a minimum of -13°C (9°F) and a maximum of 17°C (63°F), averaging just 3°C (38°F). Precipitation decreases to 85 mm (3.3 in) occurring over 11 days, accompanied by higher humidity at 90%. For more detailed insights into the weather during this month, check out Altaussee weather in November.

In September, the weather is characterized by a moderate range of temperatures, with a minimum of -2°C (29°F) and a maximum of 26°C (80°F), resulting in an average of 12°C (55°F). The month sees a decent amount of precipitation, totaling 160 mm (6.3 in) over 16 days, along with a humidity level of 74%. In contrast, December experiences much colder temperatures, with a minimum of -15°C (4°F) and a maximum of 12°C (53°F), leading to an average of -1°C (30°F). Precipitation remains similar at 161 mm (6.3 in), but occurs over slightly more days at 18, and humidity rises to 89%. For more details, you can check out the Altaussee weather in December.

Compare Altaussee's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Altaussee

As September rolls in, Altaussee experiences a delightful transition into early autumn, characterized by cooler days and a hint of crispness in the air. The average temperature settles comfortably around 12°C (55°F), offering a refreshing contrast to the warmer summer months. Visitors can expect a mix of sunny days and sporadic rainfall, with precipitation occurring over roughly half of the month, contributing to the lush landscapes that surround this scenic village. With humidity levels hovering around 74%, the atmosphere feels rejuvenating, making it a perfect time for outdoor adventures. For a deeper dive into what makes Altaussee's climate unique, visit Altaussee Climate.