Last updated: February 26, 2025
In Hannover, Germany, September presents a dynamic climate characterized by a maximum temperature soaring up to 32°C (90°F), while the average hovers around a pleasant 15°C (59°F). As the month progresses, the minimum temperature can dip to a brisk 1°C (35°F), signaling the onset of autumn. Rainfall is a noteworthy aspect, with precipitation totaling 59 mm (2.3 in) over approximately 10 days, leading to an average humidity of 81%. This blend of warm and cool temperatures, alongside varied precipitation, creates a unique atmosphere, making September a captivating time to experience Hannover’s seasonal transition.
In Hannover, Germany, September showcases a delightful transition from the sweltering summer months to the cooler embrace of autumn. With minimum temperatures hovering around 1°C (35°F) and maximums reaching up to 32°C (90°F), the month offers a refreshing contrast to the hot days of July and August. The average temperature settles at a comfortable 15°C (59°F), making it ideal for outdoor activities and enjoying the beautiful fall foliage. As this month unfolds, residents and visitors can revel in the crisp air and milder evenings, hinting at the changes to come as temperatures gradually dip towards winter. Overall, September is a splendid time to experience Hannover's charm before the chill sets in.
In September, Hannover experiences a moderate precipitation total of 59 mm (2.3 in), marking a slight decrease from the heavier rains of summer. With rain falling on about 10 days, this month bridges the transition towards fall, offering a pleasant balance of sunny spells and refreshing showers. Relative to the preceding months, September's precipitation is lighter than the peak 84 mm (3.3 in) seen in July but remains consistent with the city's overall late-summer climate. This pattern indicates a gradual tapering off as the year progresses, with October likely to bring an uptick in rainfall, underscoring Hannover's dynamic weather tendencies as it shifts into the cozier months of autumn.
In September, Hannover experiences a notable increase in humidity as it rises to 81%, marking a shift from the summer months characterized by lower levels around 66-67%. This transitional period sees a gradual return to the more humid conditions typical of the autumn months. Just as May and June welcome a decrease, the onset of September signals a reawakening of dampness in the air, suggesting the encroaching cooler weather. Ultimately, this trend reflects the city's seasonal rhythm, where humidity levels ascend as the year progresses towards its wetter months of October and November, which both boast a substantial 86% and 90% humidity, respectively.
As summer winds down, September in Hannover, Germany, marks a shift in UV exposure with a moderate UV Index of 5, indicating a safer time to enjoy the outdoors compared to the peak months of June and July. During this month, the recommended burn time extends to 30 minutes, allowing for more leisurely sun-soaked activities without the intense risk. The UV levels start to taper off from the very high averages experienced in the summer, illustrating a gradual transition towards lower exposure in the coming months. For those keen to know more about sun safety throughout the year, check out the comprehensive resources available at Hannover UV Index.
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September brings a delightful transition in Hannover, Germany, bathed in 308 hours of sunshine. As summer wanes, the city still enjoys substantial daylight, continuing the trend established from the warmer months of July and August, which recorded 397 and 381 hours respectively. This gradual decrease in sunshine heralds the approach of autumn, but not without leaving a golden glow on the vibrant landscapes. Interestingly, September's sunshine holds a notable advantage over October, which sees a sharp drop to 241 hours, marking a clear shift in the seasonal rhythm. As nature prepares for the colder months ahead, September stands out as a cherished moment to savor before the gray skies take hold.
As September unfolds in Hannover, Germany, the likelihood of sunny weather shows a positive trend, with a 33% chance of sunshine. This marks a slight uptick compared to the summer months, where sunshine probability hovers around 26-29%. Although September may signal the onset of autumn, it holds its own with brighter skies than October's 27% and the much gloomier 14% seen in November. This transition period invites a pleasant blend of late summer warmth and the crispness of fall, making it a delightful time for outdoor activities amid an increasing chance of sunny days.
As September unfolds in Hannover, Germany, daylight begins to wane, marking a transition from the vibrant summer months into the more subdued autumn season. With 12 hours of daylight, the city experiences a gentle decline compared to the 14 hours enjoyed in August. This shift subtly heralds the approaching winter, as the daylight gradually decreases from a peak of 16 hours in June and July. By the time October arrives, the daylight duration will further diminish to 10 hours, emphasizing the natural rhythm of the seasons. September's moderate light serves as a beautiful reminder of summer's last warmth while preparing residents for the cozy embrace of fall.
As autumn approaches, Hannover's September winds shift to a gentler rhythm, with an average speed of 2.7 m/s (6 mph), mirroring the breezy calm of summer's end. Notably, this drop in wind speed aligns with the seasonal transition, as the gusty summer months give way to cooler autumnal air. Before September, June and July experienced their lowest averages, while the wind picks up slightly again in October, hinting at the return of brisk conditions. This cooling breeze serves as a refreshing reminder of nature's cyclical patterns, creating a serene atmosphere ideal for enjoying the vibrant hues of fall.
The weather in Hannover 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 Hannover and find detailed weather information for every month.
In September, the weather in Hannover exhibits a wider temperature range, with a minimum of 1°C (35°F) and a maximum of 32°C (90°F). The average temperature is a comfortable 15°C (59°F), accompanied by an average humidity of 81% and a total precipitation of 59 mm (2.3 in) over approximately 10 days. In contrast, January presents much colder conditions, with minimum temperatures dropping to -10°C (14°F) and a maximum of only 14°C (58°F). The average temperature in January is just 3°C (38°F), and while the precipitation is slightly lower at 57 mm (2.2 in), it occurs over 11 days, resulting in higher humidity at 91%. For more detailed information, visit Hannover weather in January.
September and February present starkly contrasting weather conditions. In September, temperatures range from a mild 1°C (35°F) at night to a warm 32°C (90°F) during the day, with an average of 15°C (59°F). The humidity is relatively high at 81%, and the month sees about 59 mm (2.3 in) of precipitation over 10 days. Conversely, February is much colder, with nighttime lows plummeting to -19°C (-3°F) and daytime highs reaching only 19°C (67°F), leading to an average of 4°C (39°F). This month experiences slightly more precipitation, totaling 62 mm (2.4 in) over 11 days, and the humidity increases to 89%. For more detailed weather insights, you can visit Hannover weather in February.
In comparing the weather of September and March, we observe notable differences in temperature and precipitation. September experiences much warmer conditions, with average temperatures ranging from a chilly 15°C (59°F) to a hot 32°C (90°F), while March sees cooler temperatures, averaging just 6°C (43°F) with a max of 21°C (71°F). Precipitation levels are relatively similar, with September receiving 59 mm (2.3 in) over about 10 days, compared to March's 64 mm (2.5 in) over 13 days. Additionally, humidity levels are slightly higher in March at 87%, compared to 81% in September, indicating a more moisture-laden atmosphere during the early spring. For more detailed insights, check out Hannover weather in March.
In comparing the weather of September and April, one can see distinct differences in temperature and precipitation. September boasts a wider temperature range with a minimum of 1°C and a maximum of 32°C, averaging around 15°C, while April experiences cooler conditions, with temperatures ranging from a minimum of -4°C to a maximum of 27°C, averaging 9°C. Additionally, September sees slightly more precipitation with 59 mm over 10 days, compared to April’s 44 mm over 9 days. The humidity is high in both months, with September at 81% and April at 82%. For more detailed insights, check Hannover weather in April.
September and May both exhibit mild temperatures, but September tends to be warmer overall. In September, the temperature ranges from a minimum of 1°C (35°F) to a maximum of 32°C (90°F), with an average of 15°C (59°F). In contrast, May has a slightly cooler range, with temperatures from 0°C (32°F) to 31°C (88°F) and an average of 13°C (56°F). Precipitation levels are somewhat similar, with September recording 59 mm (2.3 in) over 10 days and May seeing a slightly higher 63 mm (2.5 in) over 11 days. Moreover, September has higher humidity at 81% compared to May's 73%. For a detailed look at May weather patterns, check out Hannover weather in May.
When comparing the weather in September and June, we see some notable differences. September tends to have a wider temperature range, with minimums dropping to 1°C (35°F) and maximums hitting 32°C (90°F), while June sees temperatures starting slightly higher at a minimum of 4°C (39°F) and peaking at 33°C (92°F). Precipitation is slightly higher in June, with 67 mm (2.6 in) over 11 days compared to September's 59 mm (2.3 in) over 10 days. Additionally, September boasts higher humidity at 81%, compared to June's 66%. Overall, September can bring more variability in temperature and feels a bit more humid than June. For more detailed information, check out Hannover weather in June.
In comparing the weather between September and July, notable differences emerge. September experiences a broader temperature range, with minimums dipping to 1°C (35°F) and maximums reaching up to 32°C (90°F), while July's temperatures are generally warmer, ranging from a minimum of 7°C (44°F) to a maximum of 37°C (98°F). Precipitation in July is slightly higher, averaging 84 mm (3.3 in) over 11 days, compared to September's 59 mm (2.3 in) over 10 days. Additionally, September tends to be more humid at 81%, in contrast to July's lower humidity of 66%. For a more detailed look at July's weather, you can check Hannover weather in July.
September weather contrasts with August in several noticeable ways. While September experiences a broader temperature range with a minimum of 1°C (35°F) and a maximum of 32°C (90°F), August tends to be warmer overall, boasting a minimum of 6°C (44°F) and a maximum of 36°C (97°F). Precipitation in September is slightly lower at 59 mm (2.3 in) over 10 days compared to August's 71 mm (2.8 in) over 12 days, indicating a marginally drier month. Additionally, humidity levels are higher in September at 81%, compared to 67% in August, making September feel more humid despite its lower average temperature of 15°C (59°F). For more detailed information, visit Hannover weather in August.
In September, the weather is characterized by warmer temperatures, with a minimum of 1°C (35°F) and an average of 15°C (59°F), peaking at 32°C (90°F). However, it also experiences moderate precipitation of 59 mm (2.3 in) over 10 days, accompanied by a humidity level of 81%. In contrast, October brings cooler conditions with minimum temperatures dropping to -2°C (29°F) and a slightly lower average of 12°C (53°F), while the maximum temperature reaches 27°C (80°F). This month is wetter, recording 73 mm (2.9 in) of rain over 14 days and a higher humidity of 86%. For more detailed insights, check out Hannover weather in October.
September showcases a wide range of temperatures, with minimums dipping to 1°C (35°F) and maximums reaching up to 32°C (90°F), resulting in an average of 15°C (59°F). The month experiences a fair amount of rainfall, totaling 59 mm (2.3 in) over about 10 days, accompanied by relatively high humidity levels at 81%. In contrast, November presents much cooler weather, with minimum temperatures dropping to -3°C (27°F) and an average of 7°C (44°F). Although November sees slightly less precipitation at 45 mm (1.8 in) over the same 10 days, it features a higher humidity level of 90%. For a detailed look at the weather patterns in November, visit Hannover weather in November.
In September, temperatures in Hannover can range from a cool 1°C (35°F) at night to a warm 32°C (90°F) during the day, with an average of 15°C (59°F). The month experiences around 59 mm of precipitation over approximately 10 days, accompanied by a relatively high humidity of 81%. In contrast, December brings a stark shift in weather, with minimum temperatures dropping to -10°C (14°F) and a maximum of just 14°C (58°F), resulting in an average of 4°C (40°F). Precipitation increases slightly to 69 mm over about 15 days, and humidity rises to 90%, making December feel notably colder and wetter. For more details on the weather, you can check Hannover weather in December.
As September unfolds in Hannover, it brings a fascinating transition from the warm embrace of summer to the crispness of autumn. With temperatures averaging around 15°C (59°F), the month showcases a delightful mix of mild days and cooler nights, where the maximum can still surge towards a sweltering 32°C (90°F), a stark contrast to the chill of earlier months. The humidity hovers at a notable 81%, lending a somewhat sticky feel to the air, especially during those lingering warm days. Expect occasional rainfall, with ten days experiencing precipitation totaling 59 mm (2.3 in), making it a month of refreshing downpours amidst the changing foliage. For a deeper understanding of how these trends shape Hannover's climate, explore Hannover Climate.