Last updated: February 26, 2025
September in Kassel, Germany experiences a dynamic climate, marked by a maximum temperature reaching 30°C (86°F) and an average of 14°C (57°F). As autumn approaches, temperatures can dip as low as 0°C (32°F). This month sees 52 mm (2.0 in) of rainfall over approximately 11 days, contributing to a relatively high humidity level of 82%. Visitors can expect a mix of mild warmth and crisp air, making it a beautiful time to explore the region's vibrant landscapes and cultural offerings.
September in Kassel, Germany marks a delightful transition from the sweltering summer months to the cooler fall season. With temperatures ranging from a brisk 0°C (32°F) at night to a pleasant 30°C (86°F) during the day, visitors can enjoy the lingering warmth while the crispness of autumn begins to set in. The average temperature settles around 14°C (57°F), creating an inviting atmosphere for outdoor activities and exploration. As the month progresses, the variability in temperatures hints at the impending autumn chill, making September a unique blend of late summer heat and early fall freshness. This temperate backdrop enhances the beauty of Kassel’s gardens and parks, making it an ideal time to experience nature’s transition.
In September, Kassel experiences a transition from the warmer summer months, with precipitation totaling 52 mm (2.0 in) over approximately 11 days. This marks a slight decline compared to the preceding months of July and August, which each saw 82 mm (3.2 in). As autumn approaches, the rainfall becomes less frequent, mirroring the gradual cooling of temperatures. Notably, despite the reduced volume, September still retains a moderate level of moisture, supporting the lush landscapes that characterize this charming German city. This subtle shift in precipitation patterns signals the changing seasons, preparing the region for the upcoming October rains, which typically bring a slight uptick to 64 mm (2.5 in).
In September, Kassel experiences a noticeable shift in humidity levels, with an average of 82%. This marks a slight increase from the summer months of July and August, which hover around 74% and 75%, respectively. As the city transitions from the heat of summer to the cool embrace of autumn, humidity levels begin to climb again, reminiscent of the wetter months at the beginning of the year. This pattern highlights a gradual return to the higher humidity levels seen in the early months, where January and February dominate with values around 90%. Thus, September serves as a bridge, blending the drier warmth of summer with the moisture-laden air that characterizes the impending fall.
As September unfolds in Kassel, Germany, the UV Index registers a moderate level of 5, suggesting that while the sun's rays can still be enjoyed, caution is advised. With a burn time of 30 minutes, it’s essential for residents and visitors to balance outdoor activities with protective measures. This month marks a transition from the higher UV levels experienced during the summer months, where July and August saw peaks of 8, categorizing the exposure as very high. The gradual decline from the summer sun serves as a reminder of the changing seasons, urging an awareness of skin protection as the days grow shorter. For more detailed insights about UV levels throughout the year in Kassel, check out the Kassel UV Index.
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As summer gracefully gives way to autumn in Kassel, Germany, September stands out with 310 hours of sunlight, marking a delightful transition from the vibrant warmth of July and August. This month captures the essence of early fall, where the golden hues of the sun still linger, but the days are noticeably shorter. While sunlight begins to taper off from the peak summer months—393 hours in July and 372 in August—September's ample sunshine continues to herald the beauty of changing leaves and cooler breezes. Following this month, October brings a more pronounced reduction to 233 hours, indicating a clear trend towards the winter months, yet September offers a final chance to bask in the gentle warmth of the sun before the darker days close in.
As autumn begins to unfold, September in Kassel, Germany, offers a promising 34% chance of sunny weather, marking a modest uptick compared to the summer months. This increase follows a gradual decline from the height of summer, where the likelihood of sunshine hovered around 27-29% in July and August. Interestingly, September's sunshine probability, while not the highest of the year, stands out positively against the 32% recorded in April and the subsequent drop as the days grow shorter. Overall, this month's forecast embodies a transitional charm, where the late summer warmth still lingers, inviting moments of brilliance before the cooler October sets in.
As summer fades and September unfolds in Kassel, Germany, daylight begins to wane, offering 12 hours of sunlight—just a gentle descent from the 14 hours enjoyed in August. This month signifies a transitional period, where the vibrant warmth of summer is replaced by the crispness of autumn. Following the peak days of June and July, with their generous 16 hours of daylight, September marks a noticeable shift as the sun sets earlier, hinting at the cooler months ahead. The gradual decrease in daylight is not just a countdown to winter; it also invites a change in atmosphere, fostering cozy evenings and reflective moments as nature prepares for its seasonal slumber.
In Kassel, Germany, September ushers in a notable shift in wind patterns, with an average wind speed of 2.3 m/s (5 mph). This marks a decline from the sunnier months, as the summer winds of July (2.5 m/s) and August (2.9 m/s) give way to gentler breezes. The trend reveals a consistent tapering off of wind speed as autumn approaches, contrasting with the spring's milder gales. While January's winds tend to pick up again to 3.4 m/s, September's calmness emphasizes a settling atmosphere, inviting residents to embrace the tranquil whispers of early fall.
The weather in Kassel 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 Kassel and find detailed weather information for every month.
September and January present stark contrasts in weather patterns. In September, temperatures can range from a chilly 0°C (32°F) to a warm 30°C (86°F), with an average of 14°C (57°F), creating a pleasant late-summer ambiance. The month experiences moderate precipitation of 52 mm (2.0 in) over approximately 11 days, coupled with a relative humidity of 82%. In contrast, January is markedly colder, with temperatures dropping as low as -11°C (12°F) and averaging just 2°C (35°F). This winter month sees a bit more precipitation, totaling 61 mm (2.4 in) over 12 days, and a higher humidity of 92%. For more detailed insights into the winter conditions, you can check out Kassel weather in January.
September and February present striking contrasts in weather. In September, temperatures span from a refreshing 0°C (32°F) at night to a warm 30°C (86°F) during the day, with an average of 14°C (57°F). The month sees about 52 mm (2.0 in) of precipitation over 11 days, accompanied by a relative humidity of 82%. In contrast, February experiences much colder conditions, with temperatures dropping as low as -22°C (-8°F) and peaking at 18°C (64°F), averaging just 3°C (37°F). With a slightly higher total precipitation of 61 mm (2.4 in) over 12 days, February also has a higher humidity level of 90%. For more details on February weather, visit Kassel weather in February.
September and March present contrasting weather conditions. In September, temperatures range from a cool 0°C (32°F) at night to a warm 30°C (86°F) during the day, making it a generally mild month with an average of 14°C (57°F). The humidity is relatively high at 82%, and there is a moderate amount of rainfall, with 52 mm (2.0 in) over 11 days. In contrast, March is much colder, featuring a minimum temperature of -12°C (10°F) and an average of just 5°C (41°F), while daytime highs reach 21°C (71°F). It experiences slightly more precipitation at 65 mm (2.6 in) over 14 days and higher humidity levels at 87%. For a more detailed look at March weather, visit Kassel weather in March.
In comparing the weather between September and April, we see notable differences in temperature and precipitation patterns. September brings a wider temperature range, with minimums around 0°C (32°F) and maximums peaking at 30°C (86°F), averaging 14°C (57°F). In contrast, April's temperatures are cooler, with a minimum of -5°C (24°F) and a maximum of 26°C (79°F), resulting in a lower average of 8°C (48°F). While both months experience a similar number of rainy days—11 in September and 10 in April—the total precipitation is slightly higher in September with 52 mm (2.0 in) compared to April's 42 mm (1.6 in). Humidity levels are also similar, with September at 82% and April at 83%. For more detailed information, you can check Kassel weather in April.
In September, the weather in Kassel can be quite variable, with temperatures ranging from a chilly 0°C (32°F) at night to a warm 30°C (86°F) during the day, averaging around 14°C (57°F). The month experiences 52 mm (2.0 in) of precipitation over 11 days, coupled with high humidity at 82%. In contrast, May sees slightly cooler temperatures, with a minimum of -1°C (31°F) and an average of 12°C (54°F), while still reaching similar maximums of 30°C (86°F). However, May generally has higher precipitation totals at 68 mm (2.7 in) over 12 days, with lower humidity at 76%. For more detailed weather insights, check out Kassel weather in May.
In comparing the weather of September and June, we observe notable differences in temperature and precipitation. September experiences a broader temperature range, with minimums dropping to 0°C (32°F) and maximums reaching up to 30°C (86°F), while June maintains a milder range, starting at a minimum of 4°C (40°F) and peaking at 32°C (89°F). Although September has the same number of rainy days as June, it records a lower total precipitation of 52 mm (2.0 in) compared to June's 76 mm (3.0 in). Additionally, September's humidity level is higher at 82%, contrasting with June's 74%, making the latter feel a bit less moist. For a more detailed look at June weather, check out Kassel weather in June.
In comparing the weather of September and July, September generally experiences cooler temperatures, with a minimum of 0°C (32°F) and an average of 14°C (57°F), compared to July's milder minimum of 6°C (44°F) and average of 18°C (65°F). July boasts warmer maximum temperatures, reaching up to 35°C (96°F), while September tops out at a milder 30°C (86°F). Additionally, precipitation is more abundant in July, with 82 mm (3.2 in) recorded over 11 days, versus September's 52 mm (2.0 in) over the same number of days. Humidity levels are higher in September at 82%, compared to July's 74%, making September feel a bit muggy despite its lower temperatures. For more detailed information on July weather, you can visit Kassel weather in July.
September weather shows a significant shift compared to August, with cooler temperatures overall. While August experiences a minimum temperature of 7°C (45°F) and an average of 18°C (65°F), September's minimum dips to 0°C (32°F) and averages around 14°C (57°F). August also boasts higher maximum temperatures, reaching up to 34°C (93°F), whereas September maxes out at 30°C (86°F). In terms of precipitation, September sees slightly less rain (52 mm) over fewer days (11 days) compared to August, which has 82 mm and 14 rainy days. Additionally, September's higher humidity at 82% contrasts with August's more comfortable 75%. For a detailed look at August weather, visit Kassel weather in August.
September and October present a notable shift in weather patterns. In September, temperatures range from a pleasant minimum of 0°C (32°F) to a warm maximum of 30°C (86°F), with an average of 14°C (57°F). The month experiences about 52 mm (2.0 in) of precipitation over 11 days and maintains a humidity level of 82%.
In contrast, October brings cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 25°C (77°F), resulting in an average of 10°C (51°F). Rainfall increases slightly to 64 mm (2.5 in) across 13 days, and humidity rises to 88%. This change indicates a transition toward autumn, where the weather becomes chillier and wetter. For more details on October weather, visit Kassel weather in October.
In September, the weather is warmer with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 30°C (86°F), averaging around 14°C (57°F). The month experiences about 52 mm (2.0 in) of precipitation spread over 11 days, with humidity levels around 82%. In contrast, November brings cooler temperatures, with a minimum of -4°C (26°F), an average of 5°C (42°F), and a maximum of 19°C (67°F). Precipitation decreases slightly to 43 mm (1.7 in) over the same number of days, while humidity rises to 90%. For more detailed information about November weather in Kassel, you can check this link: Kassel weather in November.
September weather is typically warmer, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 30°C (86°F) and an average of 14°C (57°F). In contrast, December experiences significantly cooler conditions, where temperatures vary from a minimum of -8°C (19°F) to a maximum of 13°C (56°F), with an average temperature of 3°C (38°F). Precipitation levels are also higher in December, totaling 74 mm (2.9 in) over 15 days, compared to September's 52 mm (2.0 in) over 11 days. Additionally, December's humidity is notably higher at 92%, compared to 82% in September. For more detailed information about December weather, you can check Kassel weather in December.
As September unfolds in Kassel, the weather presents a refreshing transition from the warmth of summer to the cool embrace of autumn. With temperatures reaching up to 30°C (86°F), but averaging a mild 14°C (57°F), visitors can expect pleasantly crisp days. However, the month is also characterized by higher humidity levels and noticeable precipitation, with rainfall occurring on about 11 days throughout the month. This change in weather brings a vibrant shift in the landscape, offering both comfortable days and a hint of the upcoming seasonal changes. For a deeper dive into what to expect year-round, visit Kassel Climate.