September Weather in Rostock, Germany

Last updated: February 26, 2025

September in Rostock, Germany, showcases a captivating transition from the warmth of summer to the coolness of autumn. With maximum temperatures reaching up to 30°C (86°F), the month tantalizes with pleasant days. The average temperature settles around 15°C (59°F), while cooler nights can drop to a brisk 4°C (39°F). Rainfall is moderate, totaling 55 mm (2.2 in) over roughly 10 days, contributing to the lush landscapes. Humidity lingers at a comfortable 82%, creating a refreshing atmosphere perfect for exploring this picturesque coastal city. Whether basking in the sun or enjoying the vibrant autumn foliage, September in Rostock offers a delightful blend of warm and cool experiences.

September Temperature in Rostock

As September unfolds in Rostock, Germany, the city experiences a transitional warmth that hints at the coming autumn. With temperatures ranging from a minimum of 4°C (39°F) to a comfortable maximum of 30°C (86°F), the average sits at a pleasant 15°C (59°F). This month stands out as a brief but invigorating respite from the summer heat, allowing for mild days that are perfect for enjoying the outdoors. As the warmest temperatures of the year start to wane, residents and visitors alike can relish this sweet spot of climate before the cooler months set in, making September a delightful time to explore the beauty of Rostock.

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

The chart illustrates September temperature patterns in Rostock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec373740465464656559524438
Data source: Temperature data for Rostock 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 Rostock

September in Rostock, Germany, sees a moderate rainfall of 55 mm (2.2 in) spread across about 10 days. This marks a slight decrease from the summer months, where July and August received their highest precipitation levels of 80 mm (3.2 in) and 69 mm (2.7 in), respectively. Interestingly, this transition to autumn signals a drop in precipitation frequency, as Rostock shifts towards the wetter October, which averages 77 mm (3.0 in) over 14 rainy days. Overall, September serves as a bridge between the lush summer and the rainy fall, maintaining a balanced rhythm that highlights the region's climate variability.

September Precipitation Trends in Rostock

The chart displays monthly precipitation patterns in Rostock, 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.
JanFebMarAprMayJunJulAugSepOctNovDec554461455871806955774659
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rostock

In September, Rostock experiences a noticeable uptick in humidity, reaching around 82% after the relatively drier months of summer. This shift marks a significant change from the 75% humidity recorded in August, indicating the transition towards the more humid autumn season. The humidity levels in September are higher than the preceding summer months but still lower than those experienced in the colder months, where figures rise back to the 86% in October and peak at 91% in January. This pattern highlights the city's distinct seasonal rhythms, offering a blend of mild and refreshing conditions as it moves into fall.

September Average Humidity in Rostock

This chart illustrates the average monthly humidity levels in Rostock, 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%90%87%83%78%77%77%75%82%86%90%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rostock

As September rolls around in Rostock, Germany, the UV Index reflects a moderate level of sun exposure, registering at 5. This indicates a slight decrease from the peak summer months of July and August, where the Index reached 7 and 6, respectively. With a burn time of 30 minutes, it's advisable to enjoy the beautiful early autumn sun while staying mindful of skin protection. The transition from the high summer UV levels to the more moderate readings in September signals a shift towards cooler days, but it also serves as a reminder that sun safety remains important. For further details on the UV Index throughout the year, check out Rostock UV Index.

Maximum UV Index Levels in Rostock for September

The chart shows the monthly maximum UV Index (UVI) for Rostock 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.
JanFebMarAprMayJunJulAugSepOctNovDec123568765321
Data source: Rostock 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 Rostock

As summer gracefully fades, September in Rostock, Germany offers a lovely blend of warmth and sunlight, boasting 321 hours of sunshine. This month marks a noticeable decline from the vibrant summer peak of 434 hours in July, yet it still radiates more light than the chillier months ahead. The gradual decrease in sunshine hours reflects a seasonal transition, with September serving as a bridge to autumn. Residents and visitors alike can enjoy plenty of bright days before the onset of cooler temperatures, making it a perfect time for outdoor activities against the backdrop of changing leaves. The month stands out as a beautiful farewell to summer, encapsulating the lingering warmth of the sun while hinting at the cozy days to come.

Monthly Sunshine Duration in Rostock: September Highlighted

The September sunshine duration represents the total number of hours Rostock 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.
JanFebMarAprMayJunJulAugSepOctNovDec108h192h279h366h428h432h434h399h321h251h158h113h
Data source: Rostock September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rostock During September

As summer transitions into autumn, September in Rostock, Germany, experiences a modest 29% chance of sunny weather. This represents a slight dip from the peak sunshine of June, which enjoys a 44% likelihood, showcasing the gradual shift in weather patterns. With this month being part of the shoulder season, sunny days become less frequent compared to the summer months, but still outshine the cloudy tendencies of later autumn. While not the sunniest month, September retains a fair share of pleasant days, inviting both locals and visitors to relish the last whispers of summer before the fall chill sets in.

Percentage of Sunny Days in September in Rostock

The chart illustrates the percentage of sunny days in Rostock 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 Rostock experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec13%25%35%43%29%44%33%33%29%31%14%19%
Data source: Rostock September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rostock in September

As September arrives in Rostock, Germany, the days begin to shorten after the vibrant summer months. With approximately 12 hours of daylight, this transitional month marks a gentle decline from the peak of 17 hours in June. The daylight hours steadily decrease, echoing nature's shift toward autumn. While September's light still lingers longer than the winter months to come, it gives a hint of the quieter days ahead with only a slight reduction compared to the 14 hours in August. This gradual ebb in daylight invites residents to embrace the changing season, ushering in cooler temperatures and a softer, golden-hued light that softens the landscape as twilight approaches.

Average Daylight Hours in Rostock for September

The chart illustrates the variation in daylight duration in Rostock throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h9h 45m11h 54m14h 5m16h 1m17h 2m16h 30m14h 45m12h 38m10h 28m8h 30m7h 26m
Data source: Rostock daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Rostock

As September breezes in Rostock, Germany, the average wind speed settles at 3.6 m/s (8 mph), reflecting a slight dip from the summer months of July and August. This moderate decline marks a transition from the higher winds of earlier seasons, with September often ushering in a more relaxed atmosphere. Interestingly, the trend over the year reveals that the strongest winds typically appear in the late autumn months, such as October, which averages 4.5 m/s (10 mph). While September's winds may be gentler, they serve as a precursor to the invigorating gales that will characterize the coming months, painting a picture of a dynamic seasonal shift in Rostock's coastal landscape.

Average September Wind Speed in Rostock

The chart displays monthly wind speed patterns in Rostock, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.94.04.14.34.03.13.54.03.6 m/s4.54.24.1
Data source: Rostock September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Rostock Compares to Other Months

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

September and January present strikingly different weather patterns. In September, temperatures range from a mild 4°C (39°F) at night to a warm 30°C (86°F) during the day, with an average of 15°C (59°F). The month experiences around 55 mm (2.2 in) of precipitation over approximately 10 days, accompanied by high humidity at 82%. In contrast, January's temperatures plummet, with minimums of -8°C (17°F) and a maximum reaching only 13°C (56°F), averaging just 3°C (37°F). Although the precipitation remains similar at 55 mm (2.2 in), it spreads over 11 days, while humidity rises to 91%. For more insights on January's weather, check out Rostock weather in January.

September and February showcase starkly contrasting weather conditions. In September, temperatures range from a cool 4°C (39°F) to a warm 30°C (86°F), with an average of 15°C (59°F), creating a pleasant early autumn atmosphere. The month typically experiences 55 mm (2.2 in) of precipitation over about 10 days and maintains a humidity level of 82%. In contrast, February presents a chilling environment where temperatures plummet to a minimum of -14°C (8°F) and typically reach up to 18°C (64°F), averaging at just 3°C (37°F). This winter month sees 44 mm (1.7 in) of precipitation across approximately 11 days, with humidity rising to 89%. For a deeper understanding of February weather specifics, you can visit Rostock weather in February.

September and March present quite distinct weather patterns. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 30°C (86°F), with an average of 15°C (59°F). The month sees lower humidity at 82% and experiences approximately 55 mm (2.2 in) of precipitation spread across 10 days. In contrast, March is much colder, with temperatures hovering between a minimum of -18°C (1°F) and a maximum of 19°C (67°F), and an average of only 4°C (40°F). The humidity is slightly higher at 87%, and precipitation totals 61 mm (2.4 in) over about 12 days. For a more detailed look at the weather specifics for March, you can check Rostock weather in March.

When comparing the weather in September and April, a distinct contrast in temperatures and conditions emerges. September typically offers a more moderate climate, with average temperatures around 15°C (59°F) and a maximum reaching up to 30°C (86°F), while April tends to be cooler, with an average of 8°C (47°F) and lows dipping to -4°C (26°F). In terms of precipitation, September experiences slightly more rain with 55 mm (2.2 in) over approximately 10 days, compared to April's 45 mm (1.8 in) over 8 days. Both months share high humidity levels, with September at 82% and April at 83%. For more detailed insights on April weather, you can visit Rostock weather in April.

September weather tends to be warmer than May, with average temperatures reaching 15°C (59°F) compared to May’s average of 12°C (55°F). While both months experience similar maximum temperatures—30°C (86°F) in September and 29°C (84°F) in May—September has a notably higher minimum temperature of 4°C (39°F) compared to May's chilly 0°C (32°F). Both months see a comparable amount of precipitation, with September receiving 55 mm (2.2 in) over approximately 10 days and May slightly wetter at 58 mm (2.3 in) over about 12 days. Humidity levels are also slightly higher in September at 82%, compared to May’s 78%. For more specific insights, you can check Rostock weather in May.

In September, weather in Rostock tends to be mild, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 30°C (86°F) and an average of 15°C (59°F). The month experiences around 55 mm (2.2 in) of precipitation over approximately 10 days, contributing to a relatively high humidity level of 82%. In contrast, June offers slightly warmer conditions, with temperatures varying from a minimum of 5°C (42°F) to a maximum of 32°C (90°F), and an average temperature of 18°C (64°F). June's precipitation is somewhat higher at 71 mm (2.8 in) over about 9 days but features a lower humidity of 77%. For a deeper dive into June's climate specifics, you can check Rostock weather in June.

In comparing the weather between September and July, September tends to be milder with a minimum temperature of 4°C (39°F) and an average temperature of 15°C (59°F), while July is warmer, with a minimum of 8°C (47°F) and an average of 18°C (65°F). The maximum temperature in July reaches up to 34°C (93°F), significantly higher than September's peak of 30°C (86°F). Precipitation is also notable, with July experiencing 80 mm (3.2 in) over 11 days, compared to September’s 55 mm (2.2 in) over 10 days. Humidity levels are slightly higher in September at 82% versus July's 77%, which contributes to the overall feeling of warmth in July. For a more detailed look at July weather patterns, you can check out Rostock weather in July.

In comparing the weather between September and August, we see a notable shift as temperatures begin to decline. September experiences a minimum temperature of 4°C (39°F), an average of 15°C (59°F), and a maximum of 30°C (86°F), while August boasts warmer temperatures with a minimum of 9°C (49°F), an average of 19°C (66°F), and a peak of 34°C (94°F). Precipitation also varies, as September records 55 mm (2.2 in) over 10 days, compared to August's 69 mm (2.7 in) over 13 days. Interestingly, September has a higher humidity level at 82%, compared to August's 75%, suggesting that while it may be cooler, it feels more humid. For more detailed information on August weather in the region, visit Rostock weather in August.

September and October present distinct shifts in weather patterns. September generally offers a warmer climate, with average temperatures around 15°C (59°F) and highs reaching up to 30°C (86°F). In contrast, October experiences a noticeable drop in temperatures, averaging only 11°C (52°F) and peaking at 25°C (76°F). Precipitation also increases in October, totaling 77 mm (3.0 in) over 14 days, compared to September's 55 mm (2.2 in) over 10 days. Additionally, October's humidity rises slightly to 86%, making the atmosphere feel cooler and often more damp. For more detailed information, you can visit Rostock weather in October.

September and November present quite distinct weather patterns. In September, temperatures range from a minimum of 4°C to a maximum of 30°C, with an average temperature of 15°C. The month experiences a total precipitation of 55 mm over 10 days, accompanied by a relatively high humidity of 82%. In contrast, November brings cooler temperatures, with a minimum of -3°C and a maximum of 19°C, resulting in an average of 6°C. The precipitation decreases slightly to 46 mm, still over 10 days, while humidity rises to 89%. For more detailed insights on the weather during this month, you can visit Rostock weather in November.

September and December showcase stark contrasts in weather patterns. In September, temperatures range from a mild 4°C (39°F) to a warm 30°C (86°F), with an average of 15°C (59°F), and the month typically sees about 55 mm (2.2 in) of precipitation over 10 days, accompanied by a humidity level of 82%. In contrast, December experiences much colder conditions, with temperatures dipping as low as -9°C (16°F) and averaging just 3°C (38°F). The maximum temperature in December reaches only 12°C (53°F), and precipitation slightly increases to 59 mm (2.3 in) over 12 days, along with a higher humidity level of 92%. For more detailed information, you can check out the Rostock weather in December.

Compare Rostock's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Rostock

As summer transitions into autumn, Rostock's September weather showcases a blend of warmth and cooler temperatures, making it distinct from the preceding months. The days can still reach a pleasant maximum of 30°C, inviting outdoor activities, while the evenings bring a refreshing chill, reminding residents of the cooler months ahead. With an average temperature of 15°C, September also experiences heightened humidity levels at 82%, contributing to the characteristically crisp air. Although rain is modest—with about 55 mm falling over 10 days—this month marks a shift towards more frequent autumnal showers. For a deeper dive into Rostock's climate throughout the year, check out Rostock Climate.