September Weather in Jever, Germany

Last updated: February 26, 2025

In September, Jever, Germany experiences a captivating transition into autumn, with temperatures ranging from a pleasant 5°C (40°F) at night to a maximum of 29°C (85°F) during the day. The average temperature settles at a mild 15°C (59°F), providing a comfortable backdrop for outdoor activities. However, this month also sees an average precipitation of 56 mm (2.2 in) over 12 days, contributing to the region's lush scenery. With humidity levels hovering around 81%, the air can feel quite moist, enhancing the vibrant atmosphere of this charming coastal town.

September Temperature in Jever

As September unfolds in Jever, Germany, temperatures begin to shift from the lingering warmth of summer into the crisp embrace of autumn. With a minimum of 5°C (40°F) and a pleasant average of 15°C (59°F), the month offers a gentle transition, culminating in a comfortable maximum reaching 29°C (85°F). This gradual cooling marks a significant drop from the heights of July and August, yet it still retains enough warmth for outdoor activities. The soothing warmth of early fall coupled with increasingly cool evenings sets the stage for a picturesque end to the summer season, inviting locals and visitors alike to enjoy the vibrant autumnal landscapes.

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

The chart illustrates September temperature patterns in Jever, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec393942475463646558534540
Data source: Temperature data for Jever generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Jever

In September, Jever experiences a notable shift in weather patterns, with precipitation measuring 56 mm (2.2 in) over 12 days. While this amount is lower than the more rain-heavy summer months of July and August, which saw 87 mm (3.4 in) and 84 mm (3.3 in) respectively, September maintains a steady rhythm of rainfall that signals the transition to autumn. As the days shorten and temperatures begin to cool, the consistent, though lighter, precipitation prepares the landscape for the impending vibrancy of fall colors. This month’s rainfall, marking a mild increase from the preceding months, suggests an approach to the wetter conditions typical of October, which averages 85 mm (3.4 in) over 15 days.

September Precipitation Trends in Jever

The chart displays monthly precipitation patterns in Jever, 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.
JanFebMarAprMayJunJulAugSepOctNovDec625765485979878556855474
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Jever

As autumn begins to settle in Jever, September brings a noticeable increase in humidity, rising to 81% after a summer of lower levels. This shift marks a departure from the drier months of June (66%) and July (66%), as well as a slight dip from the milder August (67%). The month's humidity sets the stage for the wetter days ahead, ultimately paving the way for October's return to cooler, more humid conditions at 86%. Overall, this transition illustrates how the summer's dry spell gives way to the characteristic dampness of fall, preparing Jever for the winter's even more humid months that follow.

September Average Humidity in Jever

This chart illustrates the average monthly humidity levels in Jever, 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%89%87%82%73%66%66%67%81%86%90%90%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Jever

In September, Jever, Germany experiences a moderate UV Index of 5, signaling a shift as summer wanes. This marks a decline from the high levels seen in June and August, where UV indices soared to 8 and 7 respectively, requiring shorter burn times of just 15 to 25 minutes. With the return to a 30-minute burn time in September, sun exposure remains significant, but it becomes more manageable. As temperatures cool, it's essential to stay mindful of UV protection, especially during mid-day when the sun is strongest. For detailed insights and daily updates, visit Jever UV Index.

Maximum UV Index Levels in Jever for September

The chart shows the monthly maximum UV Index (UVI) for Jever 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.
JanFebMarAprMayJunJulAugSepOctNovDec123578775321
Data source: Jever 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 Jever

September in Jever, Germany, offers a delightful transition into autumn, with 313 hours of sunshine that showcase the lingering warmth of summer. This month marks a notable dip from the peak of 416 hours in July, yet it still outshines many earlier months, such as February and March. As the days grow shorter, the sun continues to bathe Jever in a gentle glow, making it a perfect time for outdoor activities. The gradual decline in sunlight from the summer's height reflects the changing seasons, inviting residents and visitors alike to relish the crisp air and vibrant autumnal scenery while they can.

Monthly Sunshine Duration in Jever: September Highlighted

The September sunshine duration represents the total number of hours Jever 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.
JanFebMarAprMayJunJulAugSepOctNovDec102h191h274h358h410h408h416h392h313h243h179h121h
Data source: Jever September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Jever During September

As summer transitions into autumn, September in Jever, Germany, showcases a consistent likelihood of sunny weather, with a 30% chance of sunshine. This aligns closely with the preceding months of June, July, and August, which also hover around the 30% mark, indicating that while the days are getting shorter, the sun still makes a notable appearance. However, the probability of sunny days starts to decline sharply as the year progresses into the cooler months, with October bringing it down to 27% and further diminishing through the winter. Thus, while September offers a pleasant chance for clear skies, it hints at the approaching seasonal changes and the inevitable transition into the gloomier months ahead.

Percentage of Sunny Days in September in Jever

The chart illustrates the percentage of sunny days in Jever 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 Jever experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%27%34%42%27%35%31%30%30%27%17%19%
Data source: Jever September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Jever in September

As summer transitions to autumn in Jever, Germany, September enjoys a generous 12 hours of daylight, marking a gradual decrease from the sun-drenched days of summer. This month strikes a balance between the peak 16 hours of daylight found in June and July and the shorter days that follow in October, which offers just 10 hours. The shifting daylight reflects the changing season, as the vibrant hues of early autumn begin to emerge. By September, the days are still bright enough to enjoy outdoor activities, but they hint at the cozy, shorter days of fall that await in the coming months. This blend of light invites residents to savor the last warm days while preparing for the crispness of October.

Average Daylight Hours in Jever for September

The chart illustrates the variation in daylight duration in Jever throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 6m9h 48m11h 54m14h 2m15h 55m16h 55m16h 23m14h 41m12h 37m10h 30m8h 35m7h 33m
Data source: Jever daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Jever

As September unfolds in Jever, Germany, the gentle winds begin to whisper a change in the air, with an average wind speed of 3.4 m/s (8 mph)—a slight dip from the summer months. This trend reflects a gradual cooling as the vibrant energy of summer melds into the tranquility of autumn. While the wind speeds were more robust in earlier months, peaking at 4.6 m/s in the spring, September's breezes are a reminder that the transition to fall has begun. As the year progresses towards October, the winds pick up again, hinting at the arrival of brisker days ahead.

Average September Wind Speed in Jever

The chart displays monthly wind speed patterns in Jever, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.64.64.44.23.23.64.13.4 m/s4.84.24.4
Data source: Jever September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Jever Compares to Other Months

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

In September, temperatures typically range from a cool 5°C (40°F) to a warm 29°C (85°F), with an average of 15°C (59°F) creating a pleasant early autumn climate. The month sees around 56 mm (2.2 in) of precipitation spread over 12 days, and humidity levels sit at 81%, making it a relatively humid month. In contrast, January presents a much colder scenery, with temperatures plunging to a minimum of -9°C (16°F) and only reaching a maximum of 14°C (57°F), averaging just 4°C (39°F). Although January records slightly more precipitation at 62 mm (2.4 in) over 13 days, humidity levels rise to 91%. This comparison highlights the stark transition from the mild, humid days of September to the cold and damp conditions characteristic of January. For more detailed insights, you can check the Jever weather in January.

In September, the weather is generally milder with temperatures ranging from a chilly 5°C (40°F) to a warm 29°C (85°F), making it a pleasant time of year with an average temperature of 15°C (59°F). There is moderate rainfall, with 56 mm (2.2 in) of precipitation over about 12 days, and humidity levels sit at a relatively comfortable 81%.

In stark contrast, February brings much colder conditions, with temperatures dropping to a minimum of -11°C (12°F) and peaking at just 17°C (63°F)—an average of 4°C (39°F). Although the precipitation remains comparable at 57 mm (2.2 in) over 11 days, the humidity rises slightly to 89%, contributing to the brisk winter ambiance. For a closer look at February weather specifics, you can check Jever weather in February.

September and March present contrasting weather conditions. In September, temperatures gradually warm up, ranging from a chilly 5°C (40°F) at night to a pleasant maximum of 29°C (85°F) during the day, with an average of 15°C (59°F). The month sees relatively less precipitation at 56 mm (2.2 in) over 12 days, alongside a moderate humidity level of 81%. In stark contrast, March experiences colder temperatures, dipping as low as -10°C (14°F) overnight, and peaking at 20°C (68°F) during the day, averaging around 6°C (42°F). This month is characterized by a slightly higher precipitation level of 65 mm (2.6 in) also over 12 days and a higher humidity of 87%. For a closer look at conditions in this month, you can visit Jever weather in March.

September and April display notable differences in weather patterns. In September, temperatures range from a cool 5°C (40°F) to a pleasant average of 15°C (59°F), peaking at a warm 29°C (85°F). The month experiences about 56 mm (2.2 in) of precipitation over 12 days, with humidity levels around 81%. In contrast, April presents cooler conditions, with temperatures dipping as low as -4°C (26°F), averaging 9°C (48°F), and reaching a maximum of 27°C (80°F). It sees slightly less precipitation at 48 mm (1.9 in) over 11 days and a marginally higher humidity level of 82%. For a detailed look at April weather, check out Jever weather in April.

September and May showcase distinct weather patterns, highlighting the transition between seasons. In September, temperatures range from a minimum of 5°C (40°F) to a maximum of 29°C (85°F), averaging around 15°C (59°F). The month sees about 56 mm (2.2 in) of precipitation spread across 12 days, with humidity levels peaking at 81%. Conversely, May experiences slightly cooler temperatures with a minimum of 1°C (33°F) and a maximum of 31°C (88°F), averaging 12°C (55°F). With around 59 mm (2.3 in) of precipitation over 13 days and lower humidity at 73%, May tends to feel drier than September. For a specific look at this month's conditions, check out Jever weather in May.

In comparing the weather between September and June, September typically experiences a milder temperature range, with a minimum of 5°C (40°F), an average of 15°C (59°F), and a maximum of 29°C (85°F). The month sees an average precipitation of 56 mm (2.2 in) spread over 12 days, accompanied by higher humidity at 81%. In contrast, June offers slightly warmer conditions, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 34°C (93°F) and an average of 17°C (63°F). However, it also brings more rainfall, totaling 79 mm (3.1 in) over 11 days, but with lower humidity at 66%. For more insights, you can check out the Jever weather in June.

When comparing the weather in September and July, we observe distinct differences in temperature and precipitation patterns. In September, temperatures range from a minimum of 5°C (40°F) to a maximum of 29°C (85°F), with an average of 15°C (59°F). This month sees about 56 mm (2.2 in) of rainfall over approximately 12 days, coupled with a higher humidity level of 81%. In contrast, July features warmer conditions, with temperatures ranging from 8°C (47°F) at night up to 36°C (96°F) during the day, and an average temperature of 18°C (64°F). However, it experiences more precipitation, totaling 87 mm (3.4 in) over 13 days, while maintaining a lower humidity of 66%. For further details, you can refer to Jever weather in July.

In comparing the weather of September and August, September tends to be cooler with average temperatures around 15°C (59°F) compared to August's warmer average of 18°C (65°F). The maximum temperature in September reaches 29°C (85°F), while August can peak at a hot 34°C (94°F). Additionally, September experiences slightly less precipitation at 56 mm (2.2 in) over 12 days, whereas August sees a higher total of 84 mm (3.3 in) across 14 days. Interestingly, September also has a higher humidity level at 81% compared to August’s 67%. For a more detailed look at August weather patterns, check out Jever weather in August.

In September, temperatures range from a minimum of 5°C (40°F) to a maximum of 29°C (85°F), with an average of 15°C (59°F). The month experiences 56 mm (2.2 in) of precipitation over 12 days, accompanied by a humidity level of 81%. In contrast, October sees cooler temperatures, with a minimum of -2°C (28°F) and an average of 12°C (53°F), peaking at 26°C (79°F). Precipitation increases to 85 mm (3.4 in) over 15 days, raising humidity slightly to 86%. For a more detailed look at October weather in Jever, you can check this link: Jever weather in October.

September and November show distinct differences in weather patterns. In September, temperatures range from a minimum of 5°C (40°F) to a maximum of 29°C (85°F), with an average temperature of 15°C (59°F). The month sees about 56 mm (2.2 in) of precipitation over 12 days and humidity levels at 81%.

In contrast, November experiences colder temperatures, with a minimum of -3°C (27°F) and a maximum of 19°C (66°F), averaging around 7°C (45°F). With slightly less precipitation at 54 mm (2.1 in) over the same number of days, humidity rises to 90%, making the air feel damp and chilly. For more detailed insights, check out Jever weather in November.

September weather is characterized by mild temperatures, ranging from a minimum of 5°C (40°F) to a maximum of 29°C (85°F), with an average of 15°C (59°F). The month experiences 56 mm (2.2 in) of precipitation over approximately 12 days, and the humidity is relatively high at 81%. In contrast, December brings much colder conditions, with temperatures dropping to a minimum of -8°C (17°F) and an average of just 5°C (41°F), peaking at 13°C (55°F). December records a higher precipitation rate of 74 mm (2.9 in) across about 16 days, and the humidity increases to 90%. This shift in weather highlights the stark transition from the warmer, more humid days of September to the colder, damp conditions typical of December. For more details, see Jever weather in December.

Compare Jever's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Jever

As September rolls in, Jever experiences a transition marked by a mix of warm days and cooler nights, offering a refreshing contrast to the summer heat. The typically mild temperatures invite both locals and visitors to enjoy outdoor activities, although the increased humidity and occasional rainy days hint at the approaching autumn. With an average precipitation of 56 mm over about 12 days, September proves to be a month where the weather can be unpredictably brisk, reminding us of nature's ever-changing character. This month stands apart from the sultry summer months, as Jever prepares for the cozy embrace of fall. Discover more about the annual trends by visiting Jever Climate.