September Weather in Millstatt, Austria

Last updated: February 26, 2025

In September, Millstatt, Austria, experiences a mild climate with temperatures ranging from a maximum of 24°C (75°F) to a minimum of -1°C (30°F), offering a comfortable average of 12°C (53°F). The month sees 127 mm (5.0 in) of precipitation spread over 13 days, resulting in a humidity level of 74%. This blend of moderate warmth and typical autumnal rain creates a picturesque setting, perfect for enjoying the stunning autumn foliage and outdoor activities.

September Temperature in Millstatt

As September unfolds in Millstatt, Austria, the temperatures begin to shift, hinting at the arrival of autumn. The month greets visitors with an average temperature of 12°C (53°F), a pleasant change from the warm summer days. Mornings can start off crisp with lows around -1°C (30°F), while afternoons bask in the mild warmth, reaching up to 24°C (75°F). This transitional period showcases a charming blend of cool breezes and temperate sunshine, creating an inviting atmosphere perfect for exploring the breathtaking landscapes. With each passing week, the days gradually grow shorter, allowing the vibrant colors of the surrounding nature to come alive, while the clear skies provide a stunning backdrop for autumn adventures.

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

The chart illustrates September temperature patterns in Millstatt, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec242934434959616153453627
Data source: Temperature data for Millstatt 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 Millstatt

September in Millstatt, Austria, sees a noticeable transition in the region's weather patterns, with precipitation totaling 127 mm (5.0 in) over 13 days. This amount represents a slight decrease from the 150 mm (5.9 in) experienced in August, signaling the onset of autumn. While the number of rainy days remains relatively moderate, it contributes to the lush landscapes, setting the stage for vibrant fall foliage. As temperatures begin to cool, this month's rainfall plays a crucial role in sustaining local flora, preparing Millstatt's beautiful surroundings for the seasonal shift ahead. The consistent precipitation pattern throughout the summer months lays a foundation for the coming cooler temperatures, making September a pivotal month in the region's climate cycle.

September Precipitation Trends in Millstatt

The chart displays monthly precipitation patterns in Millstatt, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4975789915210911415012799139126
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Millstatt

In September, Millstatt, Austria, experiences a slight increase in humidity, averaging around 74%, which aligns with the trend of the summer months but suggests a gradual transition toward the wetter conditions of autumn. Following a peak in humidity during the colder months, where January and February see levels exceeding 90%, September acts as a bridge, exhibiting the lingering warmth of summer, yet hinting at the impending autumn chill. As the humidity dips from August's 68%, this month indicates the arrival of richer, damp air typical of the season while still maintaining a comfortable atmosphere for locals and visitors alike. These patterns reflect a delicate balance, demonstrating how the climate morphs with the changing seasons, foreshadowing the higher humidity levels that will return in October and beyond.

September Average Humidity in Millstatt

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

As summer yields to autumn in Millstatt, Austria, the UV Index begins to decline, transitioning from the very high levels of July and August to a more moderate high of 7 in September. During this month, with a burn time of 25 minutes, it's important to remain mindful of sun exposure, particularly during midday. This trend reflects a gradual shift witnessed throughout the year, where peak sunlight intensity occurs in the warmer months, and the UV Index tends to drop as the temperatures cool. As the days grow shorter and milder, September still requires caution under the sun, but overall, the UV rays are less intense than in the summer months. For current metrics and safety tips, visitors can refer to the comprehensive guide at Millstatt UV Index.

Maximum UV Index Levels in Millstatt for September

The chart shows the monthly maximum UV Index (UVI) for Millstatt 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.
JanFebMarAprMayJunJulAugSepOctNovDec24689101097532
Data source: Millstatt 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 Millstatt

As the sun sets on summer, September in Millstatt, Austria, offers a delightful transition with 303 hours of sunshine. While this marks a mild decline from the peak summer months of July and August, it still shines brightly compared to the preceding months. The consistent increase from January's 188 hours to May's 349 showcases a steady embrace of warmer days, peaking in the high summer. September’s sun-soaked days serve as a pleasant reminder of the warmth before the gradual twilight of autumn sets in, leading into the cooler and cloudier months of October and November. As the season shifts, Millstatt captures the beauty of early autumn light, making it an enchanting time to experience the region’s charm amidst the changing colors.

Monthly Sunshine Duration in Millstatt: September Highlighted

The September sunshine duration represents the total number of hours Millstatt 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.
JanFebMarAprMayJunJulAugSepOctNovDec188h233h299h333h349h387h407h371h303h276h208h209h
Data source: Millstatt September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Millstatt During September

In Millstatt, Austria, the likelihood of sunny weather in September stands at a modest 41%, reflecting a mild increase compared to the summer months. While July and August offer slightly higher chances of sunshine at 39% and 36% respectively, September brings a refreshing shift as the warm season transitions to autumn. Interestingly, after a dip in spring, the chance of sun begins to stabilize in the late summer and early fall. This trend highlights September as a time where visitors can still enjoy pleasant weather, making it an appealing month for outdoor activities amidst the scenic beauty of the region. Overall, while the sun may not be guaranteed, there’s a reasonable chance to bask in its warmth as summer's lingering embrace softly gives way to the autumnal chill.

Percentage of Sunny Days in September in Millstatt

The chart illustrates the percentage of sunny days in Millstatt 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 Millstatt experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%46%52%36%27%44%39%36%41%31%27%36%
Data source: Millstatt September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Millstatt in September

As September unfolds in Millstatt, Austria, the days begin to shorten, marking a transition from the sun-drenched summer months. With approximately 12 hours of daylight, September offers a gentle decline from the peak of 15 hours in May, June, and July, where nature fully embraces the warmth and vibrancy of summer. This gradual decrease continues into October, when daylight dips to 10 hours, signaling the approach of the cooler months ahead. The shift in daylight not only reflects the changing seasons but also sets a cozy tone for autumn, inviting locals and visitors alike to enjoy the beautiful landscapes as they transition from the bright, long days of summer to the more subdued light of fall.

Average Daylight Hours in Millstatt for September

The chart illustrates the variation in daylight duration in Millstatt throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h10h 18m11h 56m13h 36m15h 3m15h 47m15h 23m14h 7m12h 30m10h 50m9h 21m8h 35m
Data source: Millstatt daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Millstatt

As September unfolds in Millstatt, Austria, the gentle caress of the wind begins to wane, with an average speed of 1.1 m/s (3 mph) marking a subtle shift from the summer months. This gradual decline follows a trend observed throughout the year, where the spring and summer months tend to have slightly brisker breezes, peaking in late spring. As autumn approaches, the winds grow softer, reflecting nature's transition into a more serene phase. Interestingly, September's wind speed is the lowest recorded for the year, signaling a calm before the winter chill takes hold. This delicate shift invites locals and visitors alike to savor the beauty of the fading warm days, wrapped in the tranquil embrace of the season's end.

Average September Wind Speed in Millstatt

The chart displays monthly wind speed patterns in Millstatt, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.31.31.41.51.41.31.41.21.1 m/s1.41.21.6
Data source: Millstatt September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Millstatt Compares to Other Months

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

Comparing the weather in September and January reveals significant seasonal contrasts. In September, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 24°C (75°F), with an average of 12°C (53°F). This month also sees considerable precipitation, totaling 127 mm (5.0 in) over approximately 13 days, alongside a humidity level of 74%. In stark contrast, January experiences much colder conditions, with temperatures plunging to a minimum of -19°C (-2°F) and peaking at only 8°C (47°F), averaging -5°C (24°F). Precipitation is reduced to 49 mm (1.9 in) over about 9 days, but humidity is significantly higher at 91%. For more detailed insights on January weather, you can check out Millstatt weather in January.

September and February boast distinct weather patterns that reflect the transition between late summer and winter. In September, temperatures range from a minimum of -1°C (30°F) to a pleasant maximum of 24°C (75°F), with an average temperature of 12°C (53°F). This month experiences 127 mm (5.0 in) of precipitation over 13 days, along with a humidity level of 74%. In contrast, February is marked by significantly colder temperatures, ranging from a minimum of -20°C (-4°F) to a maximum of 12°C (54°F), with an average temperature of -2°C (29°F). Though February has less precipitation at 74 mm (2.9 in) over 8 days, it exhibits a higher humidity level of 87%. For more detailed weather information, check out Millstatt weather in February.

In comparing the weather of September and March, significant differences emerge. September boasts milder temperatures with a minimum of -1°C (30°F), an average of 12°C (53°F), and a maximum of 24°C (75°F). It experiences more rainfall, with 127 mm (5.0 in) over about 13 days and a humidity level of 74%. In contrast, March is much colder, starting with a minimum temperature of -22°C (-8°F) and averaging just 1°C (35°F), peaking at 17°C (63°F). While March sees less precipitation at 78 mm (3.1 in) over 11 days, it comes with higher humidity at 82%. For more detailed information, visit Millstatt weather in March.

When comparing the weather in September and April, a few key differences stand out. September generally features a wider temperature range, with minimums at -1°C (30°F), averages around 12°C (53°F), and maximums reaching up to 24°C (75°F). In contrast, April tends to start cooler, with minimums as low as -8°C (18°F) and a lower average temperature of 6°C (43°F), but it can still peak at 22°C (72°F). In terms of precipitation, September sees slightly more rain with 127 mm (5.0 in) over 13 days, while April has 99 mm (3.9 in) across 12 days. Humidity levels are comparable, with September at 74% and April slightly higher at 79%. For a closer look at the weather specifics for April, refer to Millstatt weather in April.

In comparing the weather between September and May, both months exhibit mild temperatures and similar humidity levels. In September, temperatures range from a chilly minimum of -1°C (30°F) to a warm maximum of 24°C (75°F), with an average of 12°C (53°F). In contrast, May experiences slightly lower minimum temperatures at -3°C (26°F) and an average of 10°C (50°F), but it can reach a maximum of 25°C (78°F). Precipitation is also a notable difference; September sees 127 mm (5.0 in) of rainfall over 13 days, whereas May has higher precipitation at 152 mm (6.0 in) over 22 days. For more detailed insights into May weather, you can check Millstatt weather in May.

In September, temperatures range from a minimum of -1°C (30°F) to a maximum of 24°C (75°F), averaging around 12°C (53°F), while June experiences a slightly warmer climate with minimum temperatures at 0°C (33°F) and maximums reaching 32°C (90°F), averaging 15°C (59°F). September sees higher precipitation, with 127 mm (5.0 in) over about 13 days, compared to June's 109 mm (4.3 in) spread over 16 days. Both months have similar humidity levels, with September at 74% and June at 75%. For more detailed information, you can check Millstatt weather in June.

In comparing the weather between July and September, notable differences emerge. July typically experiences warmer temperatures, with a minimum of 5°C (41°F) and an average high of 29°C (84°F), compared to September’s cooler minimum of -1°C (30°F) and maximum of 24°C (75°F). Both months maintain consistent humidity levels at 74%, but rainfall is slightly less in July, with 114 mm (4.5 in) of precipitation over 19 days, versus September's 127 mm (5.0 in) across 13 days. For a more detailed look at the weather in July, visit Millstatt weather in July.

September weather shows a notable transition from the warmth of August, with average temperatures dropping from 16°C (61°F) in August to 12°C (53°F). While both months experience a fair amount of precipitation, September has slightly less at 127 mm (5.0 in) compared to August's 150 mm (5.9 in), though rain is seen on more days in September (13 days) than in August (18 days). Additionally, September is characterized by higher humidity at 74%, compared to August's 68%, contributing to a cooler and moister feel as the season shifts. For a detailed look at August weather, you can visit Millstatt weather in August.

September typically offers milder temperatures compared to October, with average highs reaching up to 24°C (75°F) and a more moderate minimum of -1°C (30°F). In contrast, October sees a drop in overall temperatures, with average highs of just 19°C (67°F) and lows dipping to -3°C (27°F). While September experiences more rainfall, totaling 127 mm (5.0 in) over 13 days, October is slightly drier with 99 mm (3.9 in) of precipitation across 9 days. Additionally, October's humidity rises to 88%, making the air feel cooler and crisper than in the preceding month. For more details on October weather, you can visit Millstatt weather in October.

September and November present contrasting weather patterns. In September, temperatures range from a mild -1°C (30°F) at night to a pleasant maximum of 24°C (75°F) during the day, with an average of 12°C (53°F). The month also experiences relatively moderate precipitation, totaling 127 mm (5.0 inches) over 13 days and maintains a humidity level of 74%. In contrast, November brings significantly colder temperatures, with nighttime lows plunging to -14°C (7°F) and daytime highs reaching only 15°C (60°F), resulting in an average of just 2°C (37°F). This month sees a slightly higher precipitation level of 139 mm (5.5 inches), spread over 11 days, combined with increased humidity at 90%. For more detailed information on November weather, you can visit Millstatt weather in November.

In September, temperatures range from a chilly -1°C (30°F) at night to a warm 24°C (75°F) during the day, with an average of 12°C (53°F). This month sees about 127 mm (5.0 in) of rainfall over 13 days, and humidity levels are around 74%. In contrast, December presents a starkly different climate with temperatures dropping significantly, ranging from a low of -18°C (-1°F) to a maximum of 7°C (45°F) and averaging -3°C (27°F). Precipitation levels remain similar, with 126 mm (5.0 in) recorded over 12 days, but the humidity rises to 89%. For a detailed look at December weather patterns, visit Millstatt weather in December.

Compare Millstatt's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Millstatt

As September rolls in, Millstatt experiences a notable shift in weather, transitioning from the warm embrace of summer to the crispness of autumn. With average temperatures around 12°C (53°F), this month offers a refreshing change, where the beautiful days are juxtaposed with cooler nights. The increase in precipitation, averaging 127 mm over 13 days, adds a touch of drama to the scenery, while the humidity hovering around 74% keeps the air feeling rich and alive. This blend of warmth and moisture creates a unique atmosphere, making September stand out among other months. For a deeper dive into the nuances of Millstatt's climate throughout the year, visit Millstatt Climate.