Last updated: February 26, 2025
In September, Austria experiences a delightful transition into autumn, with daytime temperatures peaking at a comfortable 22°C (72°F) while lingering around an average of 10°C (50°F). The month showcases a broad temperature range, dropping to a minimum of -5°C (23°F) at night, inviting cozy evenings. With 156 mm (6.1 in) of rainfall over approximately 16 days, this period is characterized by a notably high humidity level of 83%, creating a refreshing yet damp atmosphere. As the landscape begins to change colors, September serves as a picturesque backdrop for exploring Austria's natural beauty and vibrant culture.
As summer transitions into autumn in Austria, September showcases a refreshing shift in temperatures. With a minimum of -5°C (23°F) and an average of 10°C (50°F), the month begins to cool down, yet still enjoys a pleasant maximum of 22°C (72°F). This gradual decline marks a notable change from the warmth of August, which retains similar highs but with a slightly higher average. The crispness of early morning air signals the approach of fall, making September an ideal time for outdoor activities amidst the stunning autumn foliage. As the mountains start to dust themselves with early signs of winter, visitors can revel in the vibrant landscapes while enjoying comfortable temperatures.
In September, Au, Austria experiences a notable increase in precipitation, with a total of 156 mm (6.1 in) spread across 16 days. This marks a transition from the wetter summer months, particularly August, which brought 207 mm of rain. September's rainfall represents a slight decline compared to the lush heights of the preceding summer but still showcases the beginning of the autumnal shift. As temperatures cool and days grow shorter, the regularity of precipitation serves as a reminder of nature's rhythm, further emphasizing the area's rich and varied climate. The consistent downpours during this month lay the groundwork for the approaching October, which tends to see slightly less rainfall at 140 mm (5.5 in) over fewer days, crafting a gentle shift towards the drier months ahead.
As summer gives way to autumn, September in Austria experiences a slight rise in humidity, reaching 83%. This marks a shift from the warmer months of July and August, which averaged around 80-83% humidity. The transition is subtle, but noticeable, as humidity begins to climb back towards the elevated levels seen earlier in the year. Notably, October will witness a significant increase, spiking back to 90%, hinting at the onset of the wetter months ahead. The humidity trend suggests a return to more moisture-laden air, creating a picturesque backdrop as the leaves change, inviting both locals and visitors to enjoy the serene beauty of Austria's fall.
As summer transitions into autumn, September in Au, Austria, features a UV Index of 7, categorizing it as high exposure. This slight decline from the peak summer levels suggests a shift in the intensity of sunlight, yet it still necessitates caution during outdoor activities, with a burn time of approximately 25 minutes. Overall, the UV Index has been on a downward trend since its summer highs, encouraging residents and visitors alike to adapt their sun protection strategies. This month’s readings remind us that while temperatures may cool, sun safety remains crucial. For more details on local UV conditions, visit Au UV Index.
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As autumn approaches, September in Au, Austria, offers a delightful transition with 316 hours of sunshine, reflecting a gentle reduction from the sun-soaked heights of summer. With July leading the pack at 409 hours, the gradual decline in sunlight throughout the year paints a picturesque journey from vibrant summer days to the cooler, mellow tones of fall. August retains a robust 376 hours, but by September, the lingering warmth begins to soften, hinting at the cozy months ahead. This trend showcases a steady romance with daylight, where each passing month gracefully paves the way for the crisp embrace of autumn.
As September approaches in Au, Austria, residents and visitors can look forward to a 43% chance of sunny weather, tying it with April and October for one of the sunniest months of the year. This marks a notable increase from the summer months, where the chances of sunshine lingered around the low 30s. The transition from the bustling summer tourism season to the tranquil autumn brings a refreshing ambiance, making September an ideal time for outdoor activities surrounded by the vibrant colors of fall. With equal odds of sun as seen in April, it's a perfect opportunity to enjoy the last whispers of warmth before winter sets in.
As summer gently fades into autumn, September in Au, Austria offers a delightful transition with approximately 12 hours of daylight. This month marks a gradual decline from the sun-drenched days of July and August, which basked in 15 hours of light, heralding the onset of shorter days. While the brightness begins to subside, September still retains the warmth of late summer, allowing locals and visitors alike to enjoy the lingering sunshine as nature prepares for the cooler months ahead. Reflecting on the year, September stands as a pivotal point, bridging the vibrant long days of summer to the cozy, shorter days of fall, enriching the landscape with a warm glow as it marches toward winter.
As September rolls into Au, Austria, the wind slows down to a gentle 1.3 m/s (3 mph), the least blustery of the year. This subtle shift in breeze marks the transition from the warmer summer months, where the winds were slightly more robust. The trend reveals a gradual decline in wind speed from the summer peak, creating a serene atmosphere perfect for enjoying the stunning autumn foliage. While October brings a slight uptick back to 1.6 m/s (4 mph), September's calmness invites leisurely strolls and moments of reflection, encapsulating the beauty of seasonal change in this picturesque Austrian locale.
The weather in Au 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 Au and find detailed weather information for every month.
September and January present starkly contrasting weather conditions. In September, temperatures fluctuate between a minimum of -5°C (23°F) and a maximum of 22°C (72°F), with an average of 10°C (50°F). The month experiences about 156 mm (6.1 in) of precipitation over 16 days, contributing to a relatively high humidity level of 83%. In contrast, January sees much harsher conditions, with temperatures plunging to a minimum of -29°C (-20°F) and only reaching a maximum of 8°C (46°F), averaging -5°C (23°F). Although precipitation drops slightly to 145 mm (5.7 in), it occurs over just 12 days, with humidity increasing to 92%. For a deeper look at January weather specifics, you can visit Au weather in January.
The weather in September is generally milder compared to February, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 22°C (72°F) and an average of 10°C (50°F). In contrast, February experiences much colder conditions, with minimum temperatures plummeting to -20°C (-4°F) and an average of -2°C (28°F), peaking at just 12°C (54°F). While September sees more precipitation—156 mm (6.1 in) over 16 days—February has a lesser total of 105 mm (4.1 in) across 12 days. Notably, February also tends to have higher humidity levels at 89%, compared to September’s 83%. For a closer look at February weather specifics, check out Au weather in February.
In comparing the weather conditions in September and March, we see significant differences in temperature and precipitation. September typically offers milder temperatures, ranging from a minimum of -5°C (23°F) to a maximum of 22°C (72°F), with an average of 10°C (50°F). In contrast, March is notably colder, with temperatures dipping to a minimum of -21°C (-5°F) and averaging around 0°C (32°F), peaking at 14°C (58°F). Regarding precipitation, September sees 156 mm (6.1 in) over 16 days, while March records slightly less at 136 mm (5.4 in) across 17 days. Additionally, humidity levels are relatively high in both months, with September at 83% and March at 87%. For more detailed weather information, you can visit Au weather in March.
When comparing the weather in September and April, September generally offers milder conditions with average temperatures around 10°C (50°F), a minimum of -5°C (23°F), and a maximum of 22°C (72°F). In contrast, April experiences cooler temperatures, with an average of 4°C (39°F), a minimum of -18°C (-1°F), and a maximum of 19°C (66°F). While September is wetter with 156 mm of precipitation over 16 days, April has reduced rainfall totaling 96 mm across 13 days, making it somewhat drier. However, both months have high humidity levels, with September at 83% and April slightly higher at 84%. For more details on April weather, you can visit Au weather in April.
When comparing the weather in September and May, we see some notable differences. September tends to be milder with an average temperature of 10°C (50°F), while May has a lower average of 7°C (46°F). However, May can bring higher maximum temperatures, reaching up to 25°C (77°F) compared to September's peak of 22°C (72°F). Precipitation is more frequent in May, with 23 days of rain accumulating to 211 mm (8.3 in), contrasted with September's 16 rainy days totaling 156 mm (6.1 in). Humidity levels are relatively close, with September at 83% and May at 80%. For a detailed look at the weather in May, visit Au weather in May.
When comparing the weather in September and June, several notable differences emerge. September tends to be cooler on average, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 22°C (72°F), while June offers milder temperatures, with a minimum of -1°C (31°F) and a maximum reaching up to 29°C (84°F). Additionally, despite having slightly lower average humidity in June at 82%, it experiences more precipitation overall, with 194 mm (7.7 in) spread across 21 days, compared to September's 156 mm (6.1 in) over 16 days. These differences highlight how June tends to feel warmer and wetter than the cooler and drier September climate. For more detailed information, check out Au weather in June.
When comparing the weather in September and July, it's clear that July tends to be warmer overall. In July, the temperatures range from a minimum of 3°C (39°F) to a maximum of 28°C (83°F), with an average of 14°C (57°F). In contrast, September features a broader range, with temperatures dipping as low as -5°C (23°F) and peaking at 22°C (72°F), with an average of 10°C (50°F).
Precipitation is also notable in both months, with July receiving 194 mm (7.6 in) over 20 days compared to September's 156 mm (6.1 in) over 16 days. Despite this difference in rainfall, both months share the same humidity level of 83%. For more detailed information on conditions in July, you can check Au weather in July.
In comparing the weather of September to that of August, we see notable differences in both temperature and precipitation. September experiences a cooler temperature range, with a minimum of -5°C (23°F) and a maximum of 22°C (72°F), resulting in an average of 10°C (50°F). This contrasts sharply with the warmer August, where the minimum temperature is 2°C (36°F) and the maximum reaches 28°C (82°F), yielding an average temperature of 14°C (57°F). Furthermore, September records 156 mm (6.1 in) of precipitation over 16 days, while August has higher precipitation at 207 mm (8.1 in) over 20 days. Humidity levels are similar, with September at 83% compared to August's 80%. For more information on the weather during August, you can check Au weather in August.
In September, temperatures range from a minimum of -5°C (23°F) to a maximum of 22°C (72°F), with an average of 10°C (50°F). The month experiences significant precipitation, totaling 156 mm (6.1 in) over 16 days, and the humidity sits at 83%. In contrast, October sees slightly cooler conditions, with minimum temperatures dropping to -7°C (19°F) and an average of 6°C (43°F), while the maximum temperature reaches 19°C (66°F). Precipitation decreases to 140 mm (5.5 in) over 13 days, but humidity increases to 90%. For more detailed information, check out Au weather in October.
In September, the weather is generally milder, with temperatures ranging from a minimum of -5°C (23°F) to a pleasant average of 10°C (50°F) and a maximum of 22°C (72°F). The month experiences considerable precipitation, totaling 156 mm (6.1 in) over 16 rainy days, and the humidity hovers around 83%.
In contrast, November brings a significant drop in temperatures, with a minimum of -19°C (-2°F) and an average of just 1°C (33°F), peaking at 17°C (62°F). While the month sees less precipitation at 90 mm (3.6 in) across 10 days, the humidity increases slightly to 88%. Thus, November's chill and reduced rainfall create a distinctly different atmosphere compared to the late summer warmth of September. For more details, visit Au weather in November.
September and December present stark contrasts in weather, reflecting the transition from early autumn to the heart of winter. In September, temperatures range from a minimum of -5°C (23°F) to a maximum of 22°C (72°F), with an average of 10°C (50°F) and relatively moderate precipitation of 156 mm (6.1 in) over 16 days. Humidity levels are around 83%, contributing to a crisp but pleasant atmosphere.
In December, however, temperatures plummet, with a minimum of -23°C (-10°F) and a maximum of just 9°C (48°F), resulting in a chilling average of -4°C (25°F). Precipitation increases slightly to 176 mm (6.9 in) occurring over 18 days, and humidity rises to 90%, creating a much colder and wetter environment. For more detailed insights on December weather, you can visit Au weather in December.
As September unfolds in Au, the weather begins to transition, blending the warmth of summer with the crispness of autumn. Days are pleasantly mild, making outdoor activities enjoyable, yet early mornings can surprise with a chill reminiscent of winter. The monthly rainfall brings a refreshing boost to nature, nourishing the vibrant foliage as humidity levels rise to 83%. This combination of fluctuating temperatures and precipitation marks September as a unique month, distinct from the drier, hotter summer months and the cooler, frostier days that lie ahead. For a deeper dive into the regional climate patterns, explore Au Climate.