September Weather in Oldenburg, Germany

Last updated: February 26, 2025

September in Oldenburg, Germany showcases a pleasant transition from summer to autumn, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 30°C (87°F). The average temperature sits around 15°C (58°F), providing a mild climate that encourages outdoor activities. With 55 mm (2.1 in) of rainfall spread over 11 days, residents can expect a mix of sunny and wet weather. The humidity remains relatively high at 81%, contributing to the crisp, refreshing air characteristic of early fall. Embrace the beauty of this month as Oldenburg transforms with vibrant autumn hues!

September Temperature in Oldenburg

In September, Oldenburg begins to transition from the warmth of summer to the crispness of autumn. With temperatures ranging from a minimum of 4°C (40°F) to a comfortable maximum of 30°C (87°F), the month offers a delightful blend of warm days and cooler nights. The average temperature settles at 15°C (58°F), indicating a noticeable drop from the peak of summer. This period is characterized by pleasant weather that invites outdoor activities, making it an ideal time to explore the beautiful parks and scenic landscapes of the region before the colder months set in. As the days grow shorter, the gradual shift in temperature highlights the change of seasons, leaving residents and visitors alike enchanted by Oldenburg's dynamic climate.

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

The chart illustrates September temperature patterns in Oldenburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec383942485564646558534440
Data source: Temperature data for Oldenburg 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 Oldenburg

In September, Oldenburg experiences a noticeable dip in precipitation, with 55 mm (2.1 in) of rain spread over 11 days. This marks a shift from the wetter months of summer, where July and August both recorded over 80 mm of rainfall. As autumn begins to set in, the trend indicates a decrease in both the total precipitation and the number of rainy days compared to the preceding months, offering a brief respite before October's arrival brings an anticipated upswing with 86 mm of rain. This transitional period highlights the changing dynamics of Oldenburg's weather patterns, hinting at the shift towards the wetter, cooler months ahead.

September Precipitation Trends in Oldenburg

The chart displays monthly precipitation patterns in Oldenburg, 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.
JanFebMarAprMayJunJulAugSepOctNovDec636169536180858355865178
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Oldenburg

In Oldenburg, Germany, September ushers in a notable transition in humidity, tracking a slight rise to 81% after the relatively lower levels of summer months. Throughout the year, a clear trend emerges where the colder months bring higher humidity, peaking at 91% in January and gradually tapering to a minimum of 66% in July and June. As autumn approaches, the humidity begins to ascend again, leading into October's 86%. Thus, September acts as a bridge, hinting at the impending shift back to damp conditions typical of Oldenburg's winter months. This cyclical humidity pattern reflects the region's climate nuances, blending the warmth of summer with the crispness of fall.

September Average Humidity in Oldenburg

This chart illustrates the average monthly humidity levels in Oldenburg, 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 Oldenburg

As summer transitions to autumn in Oldenburg, Germany, the UV Index in September reflects a moderate level, recording a value of 5. This indicates a shift from the high and very high exposure categories of the summer months, where residents experienced more intense sun exposure with burn times dropping to as little as 15 minutes in June. September's burn time extends to 30 minutes, providing a more forgiving window for outdoor activities. It’s a reminder to stay mindful of sun safety, as UV levels can still pose a risk even as cooler temperatures begin to set in. As the year progresses, this trend showcases a gradual decrease in UV intensity, with the UV Index dropping to 3 by October. For more detailed insights on UV exposure throughout the year, visit Oldenburg UV Index.

Maximum UV Index Levels in Oldenburg for September

The chart shows the monthly maximum UV Index (UVI) for Oldenburg 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578775321
Data source: Oldenburg 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 Oldenburg

As summer gracefully transitions into autumn, September in Oldenburg, Germany, continues to bask in a generous 300 hours of sunshine. This month stands out as a delightful culmination of the year’s brightest days, following a vibrant summer with June and July boasting nearly 400 hours each. While the days may be getting shorter, the lingering warmth offers a perfect backdrop for outdoor activities. In stark contrast to the winter months, which see a significant drop to just 99 hours in January and 110 hours in December, September's ample sunshine heralds the onset of autumn with a comforting glow, inviting residents and visitors alike to relish in the beauty of the changing season.

Monthly Sunshine Duration in Oldenburg: September Highlighted

The September sunshine duration represents the total number of hours Oldenburg 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.
JanFebMarAprMayJunJulAugSepOctNovDec99h180h254h343h384h392h386h376h300h232h164h110h
Data source: Oldenburg September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Oldenburg During September

September in Oldenburg, Germany, offers a moderate 30% chance of sunny weather, maintaining the trends seen during the summer months. Although the likelihood of sun dips slightly compared to the sunnier spring season, where April peaks at 40%, it aligns with the relatively stable conditions experienced in August and July. As the year transitions toward autumn, this moderate sunshine can still provide pleasant days, perfect for outdoor activities and enjoying the waning warmth of late summer. While the chance for sunny weather is not as high as earlier in the year, September's cozy charm makes it a delightful time to explore the beautiful landscapes of Oldenburg.

Percentage of Sunny Days in September in Oldenburg

The chart illustrates the percentage of sunny days in Oldenburg 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 Oldenburg experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec15%26%35%40%29%32%30%30%30%25%16%17%
Data source: Oldenburg September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Oldenburg in September

As summer fades into autumn, September in Oldenburg, Germany showcases a notable transition in daylight duration. With 12 hours of sunshine, daylight begins to decrease from the peak of 16 hours experienced in June and July. This decline signals the end of the vibrant summer days, as nature gradually shifts towards the softer light of fall. Compared to the preceding months, September still enjoys a generous amount of daylight, but it hints at the cooler and shorter days to come, paving the way for October's modest 10 hours. The rhythm of daylight throughout the year beautifully illustrates the shifting seasons, inviting residents to savor the lingering warmth of early autumn before winter approaches.

Average Daylight Hours in Oldenburg for September

The chart illustrates the variation in daylight duration in Oldenburg throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 9m9h 50m11h 54m14h 1m15h 52m16h 51m16h 19m14h 39m12h 37m10h 31m8h 38m7h 36m
Data source: Oldenburg daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Oldenburg

In Oldenburg, Germany, the month of September ushers in a gentle shift in the wind patterns, with average speeds dipping to 2.9 m/s (7 mph)—notably the lowest of the year. This subtle decline from the warmer months, where averages hovered around 3.4 m/s in August, suggests a transition into the cooler autumnal air. As the vivid hues of summer begin to fade, the softer breezes create a serene ambiance throughout the city, contrasting sharply with the more vigorous winds of earlier and later months. Given that October showcases a notable increase in wind speed to 4.2 m/s (9 mph), September stands as a tranquil interlude, inviting residents and visitors alike to savor the mellow changes of the season.

Average September Wind Speed in Oldenburg

The chart displays monthly wind speed patterns in Oldenburg, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.83.73.93.63.72.73.13.42.9 m/s4.23.63.7
Data source: Oldenburg September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Oldenburg Compares to Other Months

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

September and January present stark contrasts in weather patterns. In September, temperatures range from a mild 4°C (40°F) at night to a warm 30°C (87°F) during the day, with an average of 15°C (58°F). The month sees moderate precipitation of 55 mm (2.1 in) spread across 11 days, accompanied by a humidity level of 81%, creating a generally pleasant atmosphere. Conversely, January brings much colder conditions, with temperatures dipping as low as -9°C (15°F), averaging only 3°C (38°F) and reaching a maximum of 14°C (57°F). This month experiences slightly higher precipitation at 63 mm (2.5 in) over 13 days and a humidity of 91%, leading to a damp and chilly environment. For a more detailed look at January weather, visit Oldenburg weather in January.

September and February present contrasting weather patterns. In September, temperatures range from a mild minimum of 4°C (40°F) to a pleasant maximum of 30°C (87°F), contributing to an average of 15°C (58°F). This month experiences 55 mm (2.1 in) of rainfall over about 11 days, with a humidity level of 81%. In stark contrast, February’s cold snap brings much lower temperatures, with a minimum of -10°C (14°F) and a maximum of 18°C (64°F), resulting in an average temperature of just 4°C (39°F). February sees slightly higher precipitation at 61 mm (2.4 in) over 12 days, accompanied by increased humidity at 89%. For a more detailed look, check out Oldenburg weather in February.

September and March present contrasting weather patterns that highlight the transition between late summer and early spring. In September, temperatures range from a cool 4°C (40°F) at night to a warm 30°C (87°F) during the day, with an average of 15°C (58°F). The month experiences about 55 mm (2.1 in) of precipitation over 11 days, and humidity sits at a moderate 81%. In contrast, March is much chillier, with temperatures ranging from a brisk -11°C (12°F) to a mild 21°C (70°F), averaging around 6°C (42°F). This month receives slightly more precipitation at 69 mm (2.7 in) over 13 days and has higher humidity levels at 87%. For a more detailed look at March weather, you can refer to Oldenburg weather in March.

When comparing the weather in September and April, notable differences emerge. September enjoys milder temperatures with a minimum of 4°C and an average of 15°C, reaching highs of 30°C, while April experiences cooler conditions, starting at a minimum of -4°C and averaging 9°C, with a maximum of 27°C. Both months see similar precipitation levels, with around 55 mm of rain over about 11 days, but September boasts slightly higher humidity at 81% compared to April's 82%. For those interested in a more detailed look at April's climate, check out Oldenburg weather in April.

September and May exhibit distinct weather patterns, showcasing the transition from summer to autumn and the awakening of spring. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 30°C (87°F), averaging around 15°C (58°F). The month sees about 55 mm (2.1 in) of precipitation over 11 days, with humidity levels at 81%. In contrast, May experiences slightly cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 32°C (89°F), resulting in an average of 13°C (55°F). Precipitation is marginally higher at 61 mm (2.4 in) over 12 days, while humidity is lower at 73%. For a deeper look into what May has to offer, check out Oldenburg weather in May.

September and June present distinct weather profiles. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 30°C (87°F), with an average of 15°C (58°F). This month experiences about 55 mm (2.1 in) of rainfall over approximately 11 days, coupled with a higher humidity level of 81%. In contrast, June offers warmer conditions, with temperatures starting at a minimum of 5°C (41°F) and peaking at 34°C (93°F), averaging 18°C (64°F). Rainfall in June is slightly higher at 80 mm (3.1 in) spread over 12 days, while the humidity is lower at 66%. For a deeper look at June’s climate, you can explore Oldenburg weather in June.

In comparing the weather between September and July, we see notable differences in temperature and precipitation. September experiences a wider temperature range, with minimums dipping to 4°C (40°F) and maximums reaching up to 30°C (87°F), averaging around 15°C (58°F). In contrast, July has milder minimums at 7°C (44°F), higher maximums peaking at 36°C (98°F), and an average of 18°C (65°F). Precipitation is also higher in July, with 85 mm (3.3 in) falling over 13 days compared to September's 55 mm (2.1 in) spread across 11 days. Additionally, the humidity in September is considerably higher at 81%, while July's humidity is more moderate at 66%. For a detailed understanding of July's climate, check this link: Oldenburg weather in July.

In comparing the weather patterns of September and August, September exhibits a broader temperature range with minimums dipping to 4°C (40°F) and maximums reaching up to 30°C (87°F), while August’s temperatures are generally warmer, ranging from a minimum of 7°C (44°F) to a maximum of 35°C (95°F). While August is characterized by higher average temperatures (18°C or 65°F) compared to September’s average of 15°C (58°F), it also experiences more precipitation, totaling 83 mm (3.3 in) over 15 days, compared to September’s 55 mm (2.1 in) over 11 days. Additionally, September's humidity is notably higher at 81%, unlike August which maintains a lower humidity level of 67%. For more details on the August weather, you can visit Oldenburg weather in August.

In September, the weather begins to transition from the warmth of summer, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 30°C (87°F) and an average of 15°C (58°F). However, by October, the temperatures drop, with minimums dipping to -3°C (26°F) and averages settling at 12°C (53°F), while still reaching a comfortable maximum of 27°C (80°F). The month of October also tends to be wetter, with 86 mm (3.4 in) of precipitation occurring over 14 days, compared to September's 55 mm (2.1 in) over 11 days. Additionally, humidity increases slightly from 81% in September to 86% in October, adding to the chill in the air. For a detailed look at the conditions, check out Oldenburg weather in October.

September and November present contrasting weather patterns. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 30°C (87°F), offering warm days with an average of 15°C (58°F); however, it also experiences high humidity at 81% and sees about 55 mm (2.1 in) of precipitation over 11 days. In stark contrast, November brings cooler conditions, with temperatures dipping to a minimum of -3°C (26°F) and averaging 7°C (45°F), while the maximum reaches only 19°C (67°F). Although November has slightly less precipitation at 51 mm (2.0 in), it is accompanied by higher humidity levels at 90% and an increase in rainy days to 12. For more details, visit Oldenburg weather in November.

September and December exhibit significantly different weather patterns. In September, temperatures range from a mild 4°C (40°F) at night to a warm 30°C (87°F) during the day, with an average of 15°C (58°F). The month sees about 55 mm (2.1 in) of precipitation over 11 days, accompanied by a humidity level of 81%. In contrast, December is much colder, with temperatures plummeting to a minimum of -9°C (15°F) and peaking at 13°C (56°F), averaging around 5°C (41°F). This month experiences increased precipitation of 78 mm (3.1 in) over 16 days and higher humidity at 90%. For more details, check out Oldenburg weather in December.

Compare Oldenburg's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Oldenburg

In September, Oldenburg experiences a noticeable transition as summer bids farewell and autumn begins to make its presence felt. The temperature fluctuates significantly, with warm days that can reach up to 30°C (87°F), contrasting sharply against the cooler nights that can drop to 4°C (40°F). This month typically sees increased humidity at 81%, creating a cozy atmosphere, yet it also brings rain over 11 days, contributing to an average precipitation of 55 mm (2.1 in). Such variations in weather not only mark September as a bridge between seasons but also add a unique charm to Oldenburg, making it an intriguing time to experience the city. To learn more about how September fits into the broader context of Oldenburg's climate, visit Oldenburg Climate.