Last updated: August 27, 2025
In September, Greifensee, Switzerland, experiences a gentle transition from summer warmth to autumn chill. With a maximum temperature reaching 27°C (80°F) and an average of 14°C (57°F), the month retains a pleasant atmosphere, while cooler nights can dip to a brisk 2°C (36°F). Rainfall is common, with a total precipitation of 123 mm (4.9 in) spread over 14 days, contributing to the area's lush landscapes. The humidity level hovers around 83%, enhancing the crispness of the air and creating a refreshing experience for both locals and visitors alike. Enjoy the vibrant scenery and the unique charm that September brings to Greifensee!
As September unfolds in Greifensee, Switzerland, temperatures begin to transition from the warmth of summer to the cooler embrace of autumn. With minimums dipping to a fresh 2°C (36°F), the air carries a crispness that invigorates the senses. The average temperature settles around a comfortable 14°C (57°F), inviting outdoor enthusiasts and nature lovers to explore the lake's serene surroundings. Maximums can still reach a pleasant 27°C (80°F), providing a perfect backdrop for lingering late-summer activities. This month marks a delightful blend of warm, sunny days and the early hints of autumn's chill, setting the stage for the stunning fall foliage to come.
In September, Greifensee experiences a notable shift in precipitation, with an average rainfall of 123 mm (4.9 in) over 14 days. This amount is slightly less than the summer months of August and July, which often showcase heavier rainfall, indicating the transition toward autumn. Despite the dip in precipitation total, September's rainy days still capture the region's characteristic variability, as it maintains frequent showers, preparing the landscape for the more stable weather patterns of October. The moderate September precipitation sets the stage for the vibrant hues of fall, illustrating how the weather intricately weaves through the seasons in this picturesque Swiss locale.
In September, the humidity in Greifensee, Switzerland settles at a comfortable 83%, maintaining a pleasant balance as the transition from summer to autumn begins. This month follows the slightly drier summer months of July and August, which recorded humidity levels of 83% and 80%, respectively. As the year progresses towards October, where humidity once again peaks at 90%, September serves as a gentle reminder of nature's breath, bridging the drier summer with the wetter autumn months. Overall, while winter months exhibit higher humidity, September's measurement reflects a seasonal shift, offering a refreshing climate that invites outdoor activities amid the changing leaves.
As summer transitions into autumn in Greifensee, Switzerland, the September UV Index drops to 6, classifying it in the high exposure category with a burn time of around 25 minutes. This is a notable decrease from the peak summer months, where levels reached a maximum of 10 in June. While September's UV levels remain significant, they are more manageable, reminding residents and visitors to stay mindful of sun protection. With the sun still shining brightly, it’s an excellent time to enjoy the outdoors, but don't forget to check the weather and plan accordingly. For more information on UV trends throughout the year, visit the Greifensee UV Index.
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As summer transitions into autumn, September in Greifensee, Switzerland, offers a delightful balance of warmth and light, with an impressive 314 hours of sunshine. This reflects a gradual decline from the summer peak of 410 hours in July, yet remains vibrant compared to the cooler months ahead. May and June burst with 365 and 382 hours respectively, showcasing the region's bountiful sunshine during the heart of the year. Following September, the hours dip significantly, dropping to 275 in October, indicating the change in seasons. Overall, September serves as a beautiful bridge, allowing residents and visitors to bask in the last remnants of summer while savoring the crisp freshness of the impending autumn.
As September rolls in, Greifensee, Switzerland begins to bid farewell to summer with a 43% chance of sunny weather, marking a notable uptick compared to the preceding months of June (32%) and August (37%). This positivity in sun-soaked days reflects a gradual trend of increasing sunshine from the start of the year, with the percentages peaking in late spring and fluctuating slightly through summer. As autumn approaches, September stands out as a favorable time for basking in the sun's warm embrace before the chill sets in, making it an ideal month for outdoor activities and scenic explorations around the picturesque lake.
As summer fades into autumn in Greifensee, Switzerland, September brings a gentle transition, offering approximately 12 hours of daylight. This month marks a slight decrease from the maximum of 15 hours experienced during the height of summer in June, July, and August. Interestingly, while the days are starting to shorten, they remain noticeably longer than those chilly winter months, which see daylight dwindle to just 8 hours in January and December. Following September, daylight continues to decline, reflecting the seasonal rhythm of the region. This gradual shift serves as a reminder of the changing seasons, as the vibrant hues of autumn begin to paint the landscape while still basking in the lingering warmth of late summer.
As summer fades into autumn, September brings a gentle whisper of wind to Greifensee, Switzerland, with an average speed of 1.5 m/s (3 mph). This calm breeze mirrors the tranquility of early fall, which has seen a notable decline in wind speed from the gustier dances of the previous months. In the summer, average wind speeds hovered just above this level, hinting at a season of warmth and activity, while September's subtle winds suggest a transition into more serene and reflective times. This gradual tapering of airflow, from 2.2 m/s in May to just 1.5 m/s in September, sets the stage for the crisp freshness of autumn to settle in, inviting both locals and visitors to embrace the peaceful beauty of Greifensee as nature prepares for its seasonal transformation.
Weather in Greifensee varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Greifensee, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present quite contrasting weather conditions. In September, temperatures range from a mild 2°C (36°F) at night to a warm average of 14°C (57°F) during the day, peaking at 27°C (80°F). The month typically experiences 123 mm (4.9 in) of precipitation spread over 14 days, with humidity levels averaging 83%. In stark contrast, January is characterized by significantly colder temperatures, with nighttime lows plunging to -12°C (10°F) and an average daytime temperature of 0°C (32°F), reaching a maximum of 13°C (56°F). Although January sees slightly more precipitation at 127 mm (5.0 in) across 12 days, the humidity is higher at 92%. For more detailed information, check out Greifensee weather in January.
In September, temperatures range from a cool 2°C (36°F) to a warm 27°C (80°F), with an average of 14°C (57°F), making it a transition month from summer to fall. The month experiences around 123 mm (4.9 in) of precipitation over 14 days, with humidity levels at 83%. In contrast, February is significantly colder, with temperatures dropping to a minimum of -15°C (6°F) and peaking at 17°C (62°F), averaging only 2°C (36°F). With 95 mm (3.7 in) of precipitation over 12 days and higher humidity at 89%, the winter month presents a stark contrast to September's warmth. For more detailed insights, you can check Greifensee weather in February.
September and March present quite contrasting weather conditions. In September, temperatures range from a mild 2°C (36°F) at night to a pleasant maximum of 27°C (80°F) during the day, with an average temperature of 14°C (57°F). The month experiences a fair amount of rainfall, totaling 123 mm (4.9 in) across about 14 days, while humidity levels sit at a relatively comfortable 83%. In contrast, March is significantly colder, with nighttime temperatures dropping to -16°C (4°F) and daytime highs reaching a maximum of 19°C (67°F), leading to an average temperature of just 4°C (40°F). Although March has slightly less precipitation at 112 mm (4.4 in) over 17 days, the humidity is marginally higher at 87%. For more detailed information on March weather, you can check out Greifensee weather in March.
When comparing the weather in September and April, it is clear that September tends to be warmer, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 27°C (80°F). In contrast, April experiences cooler temperatures, with a minimum of -7°C (19°F) and a maximum of 24°C (76°F). Additionally, September has higher precipitation levels, receiving 123 mm (4.9 in) over 14 days, while April sees less rain at 87 mm (3.4 in) across 12 days. Both months have similar humidity levels, hovering around 83% in September and 84% in April, creating a generally moist atmosphere. For a detailed look at the weather patterns in April, you can check out Greifensee weather in April.
September and May showcase distinct weather patterns, each with its own unique charm. In September, temperatures range from a minimum of 2°C (36°F) to a maximum of 27°C (80°F), with an average of 14°C (57°F). This month sees around 123 mm (4.9 in) of precipitation over approximately 14 days, with humidity levels hovering at 83%. In contrast, May experiences a wider temperature range, with minimums dipping to -5°C (24°F) but maxing out slightly higher at 28°C (84°F), yielding an average temperature of 12°C (53°F). The precipitation in May is greater, totaling 159 mm (6.3 in) across 20 days, along with a humidity level of 80%. For a closer look at how the weather in May unfolds, visit Greifensee weather in May.
In comparing the weather of September and June, notable differences emerge. September tends to be cooler, with average temperatures ranging from a minimum of 2°C (36°F) to a maximum of 27°C (80°F), whereas June boasts slightly warmer temperatures with a minimum of 4°C (40°F) and a maximum of 32°C (90°F). Precipitation is higher in June, totaling 187 mm (7.4 in) over 17 days compared to September's 123 mm (4.9 in) over 14 days, indicating that June experiences more rainy days. Humidity levels are similar, with September at 83% and June slightly lower at 82%. For further insights on June's weather, you can check Greifensee weather in June.
In comparing the weather between July and September, July tends to be warmer, with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 33°C (91°F), contrasted with September's lower temperatures of 2°C (36°F) to 27°C (80°F). Despite this warmth, both months experience relatively high humidity at 83%. Furthermore, July sees slightly more precipitation, totaling 145 mm (5.7 in) across 16 days, compared to September's 123 mm (4.9 in) over 14 days. For a detailed look at July's weather patterns, visit Greifensee weather in July.
In comparison to August, September experiences cooler temperatures, with a minimum of 2°C (36°F) versus August's minimum of 8°C (46°F) and an average temperature dropping from 18°C (65°F) in August to 14°C (57°F) in September. The maximum temperature also sees a decrease, peaking at 27°C (80°F) in September compared to August's warmer 32°C (90°F). While both months see considerable rainfall, September has a total precipitation of 123 mm (4.9 in) over 14 days, slightly less than August's 158 mm (6.2 in) over 15 days. Humidity levels remain high in both months, with September at 83% and August at 80%. For more details on August weather patterns, visit Greifensee weather in August.
In comparing the weather between September and October, a noticeable drop in temperatures can be observed. September boasts a range from a minimum of 2°C (36°F) to a maximum of 27°C (80°F), with an average temperature of 14°C (57°F). In contrast, October's temperatures are cooler, featuring a minimum of 0°C (32°F), an average of 10°C (50°F), and a maximum of 22°C (72°F). Precipitation levels are relatively similar, with September receiving 123 mm (4.9 in) over 14 days and October experiencing slightly higher precipitation at 128 mm (5.0 in) across 13 days. Notably, October also sees an increase in humidity, rising to 90% compared to September's 83%. For more details on October weather, you can visit Greifensee weather in October.
September typically showcases a warmer climate with average temperatures around 14°C (57°F) and a maximum of 27°C (80°F), making it a pleasant time for outdoor activities. In contrast, November experiences a significant drop in temperatures, with an average of only 4°C (40°F) and a minimum of -5°C (24°F), which brings a chill to the air. While September sees more precipitation at 123 mm (4.9 in) over 14 days, November offers slightly less rain at 80 mm (3.1 in) over 13 days. Humidity also increases from September to November, rising from 83% to 88%, contributing to the crispness of late autumn. For more detailed information about the weather in November, you can visit Greifensee weather in November.
September and December weather present a stark contrast in terms of temperature and precipitation. In September, the temperatures range from a minimum of 2°C (36°F) to a maximum of 27°C (80°F), with an average of 14°C (57°F). The month sees moderate precipitation, totaling 123 mm (4.9 in) over about 14 days, alongside a humidity level of 83%. In contrast, December experiences much colder temperatures, with a minimum reaching -10°C (14°F) and a maximum of 12°C (54°F), averaging just 2°C (35°F). Precipitation increases slightly to 155 mm (6.1 in), spread over 19 days, and humidity rises to 90%. For a more detailed overview of December conditions, you can check Greifensee weather in December.
As summer transitions to autumn, September at Greifensee offers a unique weather experience that sets it apart from other months. With a significant increase in precipitation, this month sees around two weeks of rain, contributing to an overall humidity level of 83%. While daytime temperatures can reach a pleasant 27°C (80°F), they can plunge to a cool 2°C (36°F) at night, showcasing the seasonal shift. This combination of warmth and moisture fosters a vibrant natural landscape, making September a captivating time to explore the area. For a detailed insight into the climate nuances, visit Greifensee Climate.