Last updated: August 27, 2025
In Nacka, Sweden, September offers a delightful blend of early autumn charm, with maximum temperatures reaching a pleasant 22°C (72°F) and averaging around 13°C (56°F). As the month progresses, the minimum temperature dips to 3°C (38°F), inviting cozy layers. With 52 mm (2.0 in) of precipitation spread over 10 days, gentle rains ensure the vibrant autumn foliage flourishes. Residents and visitors can expect a humidity level of 85%, contributing to the crisp atmosphere of this picturesque Swedish locale. Ideal for outdoor activities and scenic walks, September in Nacka exudes a captivating serenity.
In September, Nacka, Sweden, experiences a delightful transition as summer gracefully hands over to autumn. With minimum temperatures hovering around 3°C (38°F) and average highs reaching a pleasant 22°C (72°F), this month offers a perfect balance of warmth and coolness. The average temperature of 13°C (56°F) invites outdoor exploration amid the stunning fall foliage. As summer warmth lingers, September is characterized by clearer skies and refreshing breezes, making it an ideal time to enjoy the natural beauty of this region before the more profound chill of autumn sets in. Overall, the temperature trends in September reflect a comforting moderation, inviting both locals and travelers to embrace the change of seasons.
In September, Nacka, Sweden experiences a noteworthy shift in precipitation patterns as the summer months give way to fall. With 52 mm (2.0 in) of rain over 10 days, this month marks a significant increase compared to the drier April and June, but is less than the heavier rainfall recorded in August. This transitional period showcases an uptick in both precipitation amount and rainy days, signaling the onset of autumn. As temperatures begin to cool, the balance between sunny and rainy days starts to tilt, paving the way for the wetter months ahead, particularly in October, which typically sees even more rainfall.
As summer gives way to autumn in Nacka, Sweden, September brings a noticeable uptick in humidity, settling at a comfortable 85%. This marks a shift from the drier months of July and August, which recorded the lowest humidity levels of the year at 74% and 77%, respectively. The gradual increase in moisture levels mirrors nature’s transition, as the cooler temperatures creep in and prepare for the wetter months ahead. Interestingly, the humidity in September aligns closely with the levels experienced in spring, maintaining a rhythmic cycle that hints at the changing seasons. As residents and visitors alike enjoy the crisp air and changing foliage, the slight rise in humidity adds a touch of softness to the otherwise refreshing September days.
In September, Nacka, Sweden, experiences a UV Index of 4, signaling a moderate exposure risk. This is a slight decrease from the peak summer months of June and July, where the UV Index reached 7, indicating high exposure. As the sun's intensity gradually lessens, residents and visitors can enjoy about 30 minutes before risking skin damage under ideal conditions. The trend shows a transition from the summer sun to the cooling autumn, where it's essential to stay vigilant about UV protection, especially for those spending prolonged time outdoors. For more detailed information on UV levels throughout the year, check out Nacka UV Index.
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As September unfolds in Nacka, Sweden, the sunlight begins to wane, yet it still offers a generous 312 hours of bright days, lingering joyfully in the warmth of late summer. This month marks a gentle decline from the sun-kissed heights of July and August, which recorded their peak hours at 488 and 419 respectively. The transition signals a shift as autumn approaches, following an impressive climb from 71 hours in January to nearly 500 hours in mid-summer. While some may mourn the fading light, September still holds onto the essence of summer, inviting residents and visitors alike to relish in its golden glow before the long, darker months of winter settle in.
As September rolls in, residents of Nacka, Sweden, can anticipate a 27% chance of sunny days, marking a noticeable decline from the summer months. This drop is part of a broader trend as the sun-drenched days of July and June, boasting chances of 57% and 55% respectively, fade into the cooler autumn season. Following the spirited warmth of August, which enjoys a 38% sunlight likelihood, September suggests a transitional period where the vibrant summer sun begins to yield to the impending autumn overcast. While there are still opportunities to bask in the sun, it's advisable to prepare for those unmistakably crisp, cloudier days that herald the arrival of fall.
As summer wanes in Nacka, Sweden, September marks a gentle transition in daylight duration. With 12 hours of daylight, the month showcases a significant decrease from August's 15 hours, yet remains brighter than the approaching autumn months. This gradual decline hints at the shifting seasons, following the sun-drenched days of June and July, where daylight reached a peak of 18 hours. As nature begins to prepare for the colder months ahead, September serves as a beautiful reminder of the light slowly retreating, balancing warmth with an impending embrace of autumn's longer nights. This pattern of diminishing daylight will continue, leading into the shorter days of October and the subsequent winter months.
September in Nacka, Sweden, ushers in a refreshing shift in the winds as average wind speeds rise to 4.8 m/s (11 mph). This slight increase follows a gentle summer breeze that peaked in August at 4.5 m/s (10 mph), marking the transition from the warmer months to the brisk autumn air. Interestingly, September's wind speed remains moderate compared to the earlier part of the year, where winter months like January and February recorded stronger gusts, averaging 5.2 m/s (12 mph) and 5.1 m/s (11 mph), respectively. As the year progresses into October, Nacka prepares for a notable uptick to 5.8 m/s (13 mph), hinting at the energetic winds typical of the fall season. This dynamic pattern illustrates how Nacka’s winds evolve throughout the year, creating a rhythmic dance between calm summer days and invigorating autumn breezes.
Weather in Nacka varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Nacka, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is significantly milder with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 22°C (72°F), resulting in an average of 13°C (56°F). The month sees around 52 mm (2.0 in) of precipitation over approximately 10 days, accompanied by a humidity level of 85%. In contrast, January presents a much colder climate, with temperatures dropping to a minimum of -15°C (6°F) and peaking at 9°C (49°F), leading to an average temperature of 0°C (33°F). This month experiences slightly less precipitation at 43 mm (1.7 in) over the same number of days, but humidity is slightly higher at 90%. For more detailed insights on January weather, you can visit Nacka weather in January.
September and February present contrasting weather experiences. In September, temperatures range from a chilly 3°C (38°F) at night to a pleasant 22°C (72°F) during the day, with an average of 13°C (56°F). The month sees about 52 mm (2.0 in) of rainfall spread across 10 days, and the humidity sits at a significant 85%. In contrast, February is marked by much colder conditions, with temperatures dipping to a minimum of -12°C (11°F), peaking at a manageable 9°C (48°F) and averaging around 0°C (32°F). Rainfall is slightly less at 38 mm (1.5 in) over 9 days, and the humidity rises to 88%. For a deeper understanding of February weather, you can visit Nacka weather in February.
September and March showcase distinctly different weather patterns. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 22°C (72°F), with an average of 13°C (56°F). The month experiences around 52 mm (2.0 in) of precipitation over approximately 10 days, coupled with a relatively high humidity of 85%. In contrast, March is significantly colder, with temperatures ranging from -10°C (14°F) to a maximum of 14°C (57°F), averaging only 2°C (35°F). Precipitation decreases slightly to 44 mm (1.7 in) over about 9 days, while humidity rises to 89%. For a more detailed look at March weather, you can check Nacka weather in March.
When comparing September and April weather, one can observe distinct variations in temperature and precipitation. September features a more moderate temperature range, with averages between 3°C (38°F) and 22°C (72°F), whereas April is generally cooler, with temperatures ranging from -5°C (24°F) to 17°C (62°F). Rainfall in September is more substantial, averaging 52 mm (2.0 in) over approximately 10 days, compared to April’s 25 mm (1.0 in) over about 7 days. Despite both months experiencing high humidity levels at 85%, the warmer and wetter conditions of September contrast sharply with the chillier and drier climate typical of April. For those looking to explore the specific conditions of April, more information can be found Nacka weather in April.
In comparing the weather between September and May, we find notable differences despite their similar precipitation levels—both months receiving around 50 mm. September experiences milder temperatures, with a minimum of 3°C (38°F) and an average of 13°C (56°F), while May tends to be cooler, starting as low as -2°C (29°F) but averaging 9°C (49°F). In terms of warmth, September can reach a pleasant maximum of 22°C (72°F), whereas May peaks at 21°C (69°F). Additionally, September generally has a higher humidity level at 85% compared to May's 77%, resulting in a more humid feel during the early autumn month. For more insights on May weather, you can visit Nacka weather in May.
In comparing the weather between September and June, September tends to be cooler with average temperatures ranging from 3°C (38°F) to 22°C (72°F), while June showcases slightly warmer conditions, with temperatures spanning from 7°C (44°F) to 23°C (75°F). Humidity levels are higher in September at 85%, compared to June's 76%, which can make the air feel more damp. Although both months experience rainfall, September encounters more precipitation, with 52 mm (2.0 in) spread over 10 days, compared to June's 44 mm (1.7 in) over just 7 days. For additional insights into the June weather, you can refer to Nacka weather in June.
In comparing the weather conditions of September and July, we can observe notable differences in temperature and humidity. September experiences a wider range of temperatures, with a minimum of 3°C (38°F) and a maximum of 22°C (72°F), averaging around 13°C (56°F). In contrast, July tends to be warmer, with minimum temperatures of 9°C (48°F) and maximums reaching 26°C (80°F), resulting in an average of 17°C (64°F). Additionally, September has higher humidity at 85%, compared to July’s 74%, which can make the air feel more damp and cooler despite the milder temperatures. Precipitation levels are similar, with September receiving 52 mm (2.0 in) over about 10 days and July slightly higher at 55 mm (2.1 in) over 9 days. To explore more about the weather specifics for July, you can check Nacka weather in July.
September brings cooler temperatures compared to August, with minimums dropping to 3°C (38°F) and a daily average of 13°C (56°F), while August sees milder conditions, with minimums around 8°C (47°F) and an average of 17°C (63°F). The maximum temperature in September reaches 22°C (72°F), significantly lower than August's peak of 27°C (81°F). Additionally, September experiences slightly less precipitation, totaling 52 mm (2.0 in) over 10 days, compared to August's 68 mm (2.7 in) over 12 days, but is accompanied by higher humidity at 85% compared to August's 77%. For more details on weather patterns in August, you can check Nacka weather in August.
September weather is characterized by milder temperatures, with a minimum of 3°C and an average of 13°C, reaching a maximum of 22°C. The month sees moderate precipitation of 52 mm over about 10 days, and humidity levels hover around 85%. In contrast, October ushers in noticeably cooler conditions, with temperatures dropping to a minimum of 0°C and averaging just 9°C, peaking at 16°C. The month also experiences increased rainfall, with 76 mm of precipitation over 13 days and slightly higher humidity at 89%. For more details on October weather, visit Nacka weather in October.
September and November present notably different weather experiences. In September, temperatures range from a minimum of 3°C (38°F) to a maximum of 22°C (72°F), with an average temperature of 13°C (56°F). The month sees about 52 mm (2.0 in) of precipitation over approximately 10 days, and the humidity levels are relatively high at 85%. In contrast, November brings a sharper chill, with temperatures dipping to a minimum of -7°C (20°F) and a maximum of 14°C (57°F), averaging just 5°C (41°F). Precipitation remains similar at 50 mm (2.0 in) over around 11 days, but humidity rises slightly to 90%. For more information on November weather specifics, you can visit Nacka weather in November.
September and December present strikingly contrasting weather conditions. In September, temperatures range from a mild 3°C (38°F) at night to a comfortable 22°C (72°F) during the day, with an average of 13°C (56°F). The month sees about 52 mm (2.0 in) of precipitation over approximately 10 days, and humidity levels hover around 85%.
In contrast, December experiences much colder weather, with minimum temperatures dropping to -10°C (14°F) and maximums peaking at only 8°C (47°F), resulting in an average temperature of just 2°C (35°F). This month records higher precipitation at 70 mm (2.8 in) across about 15 days, along with slightly higher humidity at 87%.
For more detailed information, you can check Nacka weather in December.
As summer wanes, September in Nacka ushers in a refreshing transition, marked by cooler temperatures and increased humidity. With an average temperature that settles around a comfortable 13°C, the month contrasts significantly with the warmer summer months, offering a pleasant respite from the heat. However, it also brings a fair share of rain, with precipitation observed on about a third of the days, emphasizing the need for a light jacket during outdoor adventures. The 85% humidity lingers in the air, creating a crisp atmosphere that hints at the approaching autumn. For those interested in a deeper dive into how September fits into the broader climate picture, check out Nacka Climate.