Last updated: October 30, 2025
In September, Marstal, Denmark experiences a pleasant transition into autumn, characterized by a maximum temperature reaching 23°C (75°F) and an average of 16°C (61°F). As cooler breezes sweep in, temperatures may dip to a comfortable minimum of 10°C (51°F). This month also brings a notable humidity level of 83%, contributing to a crisp atmosphere. Rainfall is common, with 72 mm (2.8 in) of precipitation spread over approximately 12 days, making it essential for visitors to embrace both the beauty of early fall and the occasional shower. Enjoy the scenic landscapes and the charm of this coastal town amid the shifting seasons!
September in Marstal, Denmark, marks a delightful transition from the summer warmth into the cooler embrace of autumn. With minimum temperatures around 10°C (51°F) and a comfortable average of 16°C (61°F), visitors can enjoy mild days perfect for outdoor exploration. Daytime highs can reach a pleasant 23°C (75°F), allowing for lingering strolls along the picturesque coastline. As the month progresses, you'll notice a gradual shift toward chillier weather, hinting at the crisp days of October ahead. Overall, September offers a lovely balance of warmth and the onset of seasonal change, making it an ideal time to experience the beauty of Marstal.
In September, Marstal experiences a notable blend of precipitation, recording 72 mm (2.8 in) over roughly 12 days. This amount mirrors the summer's close, where August peaks at 83 mm (3.3 in) while preceding months like April offer a stark contrast with only 36 mm (1.4 in). The autumnal shift becomes evident as September maintains a steady rainfall volume, suggestive of the approaching transition into wetter conditions, culminating in October's significantly higher 108 mm (4.2 in). Overall, September's precipitation serves as a bridge between summer's warmth and the onset of autumn's more abundant rains, reflecting a steady climatic rhythm in Marstal.
In September, Marstal experiences a noticeable shift in humidity levels, with an average of 83%. This marks a slight increase compared to the drier months of July and August, where humidity stabilized at 77%. As summer gives way to autumn, it’s not uncommon for the air to feel thicker and more humid, setting the stage for the transition into the wetter months ahead. This uptick in humidity can be attributed to seasonal changes, as the cooler temperatures of October loom with their own forecasted humidity rise to 87%. Overall, September serves as a bridge, hinting at the more consistently humid conditions that will define the upcoming fall season in Marstal.
As summer fades in Marstal, Denmark, September ushers in a moderate UV Index of 5, signaling a shift in sun exposure. This marks a slight decrease from August's high levels, which peaked at an Index of 6. With a burn time of 30 minutes, it's essential to stay vigilant against UV radiation, even as the days grow shorter and cooler. This trend reflects the gradual transition from the intense summer sun, notably observed in June's peak UV Index of 8. As you enjoy the crisp air and changing leaves, don't forget to protect your skin by being mindful of the sun's rays. For detailed insights on UV levels throughout the year, visit Marstal UV Index.
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As the summer warmth begins to wane, September in Marstal, Denmark showcases a delightful transition in sunlight. With 321 hours of sunshine, this month signals a gentle retreat from the peak of summer's brilliance, which saw July basking in the most sunlight at 440 hours. The days start to shorten, yet they retain a vibrant glow, especially when compared to the earlier months, where sunshine progressively built from a modest 101 hours in January to June's uplifting 434 hours. September serves as a beautiful reminder of summer's lingering touch before the autumn chill sets in, offering a perfect balance of brightness and briskness that invites both exploration and reflection. Whether you're wandering the charming streets or enjoying coastal views, the sunshine here is a fitting backdrop for the changing season.
In Marstal, Denmark, the likelihood of sunny weather in September hovers around 30%, reflecting a slight decline as the summer months transition into autumn. Interestingly, September follows a trend observed from June to August, where sunny chances peak at 38%, indicating a gradual waning of summer warmth. As daylight shortens and temperatures cool, residents and visitors can still anticipate pleasant sunny spells amidst the encroaching fall weather. While September may not guarantee abundant sunshine, it often offers delightful intervals for outdoor pursuits before the winter gloom sets in.
As summer transitions to autumn in Marstal, Denmark, September brings a gentle decline in daylight duration, offering around 12 hours of sunlight. Following the vibrant June and July months, which boast up to 17 hours of daylight, September marks a shift, with days noticeably shorter as the warmth of summer begins to wane. This gradual decrease mirrors the pattern seen throughout the year, where daylight peaks in the summer and steadily declines towards winter, ultimately dropping to just 7 hours by December. The soothing golden hues of autumn can be appreciated during this month, making it a perfect time to relish the changing season while basking in the last remnants of summer's light.
As September unfolds in Marstal, Denmark, the winds begin to whisper a gentle lull, averaging a moderate 5.9 m/s (13 mph). This month marks a subtle transition from the stronger gusts of summer, with August's winds reaching 6.5 m/s (15 mph). As we look ahead to October, the average wind speed picks up again to 7.5 m/s (17 mph), hinting at the impending autumnal breezes. Interestingly, September's calmer winds are part of a broader trend where the summer months generally experience lower wind speeds, creating a serene atmosphere perfect for enjoying the picturesque coastal views. With each passing month, Marstal’s winds unfurl a narrative of seasonal change, inviting both locals and visitors to embrace the evolving beauty of Denmark's maritime climate.
Weather in Marstal varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Marstal, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present contrasting weather conditions. In September, temperatures range from a mild 10°C (51°F) at night, peaking at a pleasant 23°C (75°F) during the day, with average rainfall of 72 mm (2.8 in) over 12 days and a humidity of 83%. Conversely, January experiences much colder temperatures, dropping to a minimum of -8°C (17°F) and averaging just 3°C (38°F), with a maximum of 10°C (51°F). While precipitation is slightly higher at 73 mm (2.9 in) over 14 days, the humidity in January rises to 90%, contributing to the winter chill. For a closer look at January weather specifics, check out Marstal weather in January.
When comparing the weather in September and February, notable differences emerge. September enjoys milder temperatures, with averages around 16°C (61°F), ranging from a minimum of 10°C (51°F) to a maximum of 23°C (75°F). In contrast, February is much colder, with an average of just 3°C (38°F), dipping down to a minimum of -6°C (22°F) and reaching a maximum of 11°C (52°F). Precipitation levels are similar, with September receiving 72 mm (2.8 in) over 12 days and February garnering slightly less at 67 mm (2.6 in) over 13 days. Additionally, humidity is slightly higher in February at 89% compared to September's 83%. For more specific details about February weather, you can check Marstal weather in February.
In September, the weather in Marstal is considerably warmer, with daily temperatures ranging from a minimum of 10°C (51°F) to a maximum of 23°C (75°F) and an average of 16°C (61°F). The month experiences 72 mm (2.8 in) of precipitation over 12 days, with a humidity level of 83%. In contrast, March sees much colder conditions, with temperatures dipping as low as -6°C (22°F) and peaking at 11°C (51°F), leading to an average of just 4°C (40°F). Although precipitation levels are slightly lower in March at 69 mm (2.7 in) for the same number of rainy days, the humidity remains high at 88%. For more detailed information, you can check Marstal weather in March.
September and April present distinct weather contrasts. In September, temperatures typically range from a minimum of 10°C (51°F) to a comfortable maximum of 23°C (75°F), with an average of 16°C (61°F). The month sees about 72 mm (2.8 in) of precipitation across approximately 12 days, accompanied by humidity levels around 83%. In contrast, April experiences cooler conditions, with temperatures fluctuating between a minimum of 1°C (34°F) and a maximum of 14°C (58°F), averaging just 7°C (45°F). With only 36 mm (1.4 in) of precipitation over 8 days, April is generally drier, albeit slightly more humid at 85%. For more specifics on April weather in Marstal, you can refer to Marstal weather in April.
September generally offers warmer weather compared to May, with average temperatures ranging from a minimum of 10°C (51°F) to a maximum of 23°C (75°F). In contrast, May's temperatures are cooler, averaging between 5°C (41°F) and 18°C (66°F). Additionally, September experiences slightly more precipitation, with 72 mm (2.8 in) falling over 12 days, compared to May's 59 mm (2.3 in) over 9 days. The humidity is relatively high in both months, but September edges out at 83%, while May sits at 80%. For a closer look at the weather specifics in May, check out Marstal weather in May.
When comparing the weather in September and June, we find that both months exhibit similar temperature ranges, with minimums around 10°C (51°F), averages of approximately 16°C (61°F), and maximums reaching 23°C (75°F). However, September tends to be slightly wetter, receiving 72 mm (2.8 in) of precipitation over 12 days, compared to June's 55 mm (2.2 in) over 10 days. Additionally, September's humidity is higher at 83%, while June has a more comfortable level of 77%. For a closer look at June weather in Marstal, you can check this link: Marstal weather in June.
In comparing the weather between September and July, we observe notable differences in temperature and humidity. September experiences a range of temperatures from a minimum of 10°C (51°F) to a maximum of 23°C (75°F), with an average of 16°C (61°F), making it slightly cooler than July, which has a minimum of 13°C (55°F), an average of 18°C (64°F), and a maximum of 26°C (78°F). Both months receive the same amount of precipitation, approximately 72 mm (2.8 in), though September has rain on 12 days compared to July's 13 days, indicating a similar likelihood of wet weather. Additionally, September has a higher humidity level at 83%, while July maintains a slightly lower humidity at 77%. For a closer look at July's weather specifics, you can check Marstal weather in July.
In comparing the weather of September and August, September features cooler temperatures, with a minimum of 10°C (51°F) and an average of 16°C (61°F), while August remains warmer with a minimum of 13°C (56°F) and an average of 18°C (65°F). The maximum temperature in August reaches 26°C (78°F), compared to September's peak of 23°C (75°F). Precipitation is slightly higher in August, totaling 83 mm (3.3 in) over 14 days, whereas September sees 72 mm (2.8 in) of rainfall across 12 days. Additionally, September has a higher humidity level at 83%, compared to August's 77%. For more details, you can check Marstal weather in August.
September typically experiences milder temperatures, with average highs reaching 23°C (75°F) and lows around 10°C (51°F). In contrast, October sees a noticeable dip in temperatures, as average highs decrease to 18°C (65°F) and lows fall to 5°C (42°F). Additionally, October tends to be wetter, with precipitation totaling 108 mm (4.2 in) over 17 days compared to September's 72 mm (2.8 in) across 12 days. The humidity also slightly increases from 83% in September to 87% in October, contributing to a more damp and chilly feel as autumn progresses. For a detailed look at October weather in specific locations, you can visit Marstal weather in October.
September and November exhibit notable differences in weather patterns. In September, temperatures are milder, with daily averages reaching around 16°C (61°F) and maximums peaking at 23°C (75°F), while November sees a significant drop, with an average temperature of just 8°C (47°F) and maximums of only 16°C (62°F). Both months receive similar levels of precipitation, around 72 mm (2.8 in), but November experiences more rainy days, totaling 15 compared to September's 12. Humidity also increases in November, reaching 89% compared to September's 83%. For more details on the specifics of November weather, you can explore Marstal weather in November.
In September, temperatures in Marstal are generally mild, with averages around 16°C (61°F) and highs reaching up to 23°C (75°F). The month sees a moderate amount of precipitation, totaling 72 mm (2.8 in) over 12 days, accompanied by a relatively high humidity level of 83%. In contrast, December brings a stark change in weather, with temperatures dropping significantly; the average is only 5°C (41°F), while the maximum rarely surpasses 10°C (50°F). This winter month experiences a bit more precipitation, totaling 84 mm (3.3 in) spread over 17 days, and humidity levels increase slightly to 88%. For more details about December weather in Marstal, you can check Marstal weather in December.
As summer gracefully gives way to autumn, September in Marstal brings a unique charm characterized by mild temperatures and an increase in humidity. Visitors can expect a pleasant transition, with daytime highs around 23°C (75°F) that provide a comfortable backdrop for outdoor exploration. However, the month is also marked by a notable increase in precipitation, averaging 72 mm (2.8 in) over approximately 12 days, creating a lush landscape that is both vibrant and refreshing. This blend of warmth and moisture sets September apart from the warmer, dryer summer months, making it an ideal time to experience the beauty of Marstal. For more insights into the weather patterns throughout the year, check out Marstal Climate.