Last updated: August 27, 2025
In September, Skellefteå experiences a transition into cooler autumn weather, with maximum temperatures reaching up to 19°C (66°F), while average temperatures settle around 10°C (50°F). As the month progresses, minimum temperatures can dip to a chilly -1°C (31°F), signaling the onset of fall. With 75 mm (2.9 in) of precipitation over 11 days, the month is characterized by a relatively humid atmosphere, averaging 88% humidity. This combination of cooler air and moisture creates a unique, crisp environment, making September a picturesque time to experience the natural beauty of Skellefteå.
As September rolls into Skellefteå, Sweden, it heralds the onset of autumn with a distinct transition in temperatures. With minimums dipping to -1°C (31°F) and a pleasant average of 10°C (50°F), the month offers a refreshing change from the summer's warmth, while the maximum reaches a comfortable 19°C (66°F). This gradual cooling marks a significant shift from the balmy highs of July and August, as nature showcases its stunning fall foliage. September's crisp air is ideal for outdoor adventures, inviting both locals and visitors to embrace the beautiful landscapes before winter's chill takes hold. As the days grow shorter and the temperatures begin to fall, Skellefteå perfectly balances the lingering warmth of summer with the emerging coolness of autumn, making it a captivating time to explore.
In September, Skellefteå experiences a notable rainfall, with 75 mm (or 2.9 in) of precipitation spread over approximately 11 days. This amount reflects a slight decrease from the preceding month of August, which recorded 79 mm (3.1 in), yet it remains significant as summer transitions to autumn. As the wet season approaches, September’s precipitation hints at the upcoming wetter conditions seen in October, where rainfall jumps to 104 mm (4.1 in). The consistency in the number of rainy days throughout the month, parallel to previous months, suggests a steady shift towards a more frequent and persistent rainfall pattern as Skellefteå gears up for the chillier days ahead.
In Skellefteå, Sweden, September marks a notable shift in humidity levels, with an average of 88% that reflects a transitional phase in the climate. Following the warmer summer months, where humidity dipped to 78% in June and slightly increased to 84% by August, the onset of autumn brings a rekindling of moisture in the air. This rise to 88% in September sets the stage for the approaching chill of October, where humidity escalates further to 92%. Overall, the trend showcases a gradual increase in humidity as the year progresses, creating an atmosphere rich in moisture that heralds the arrival of winter’s embrace.
As September rolls in Skelleftea, Sweden, the UV Index trends downward to a moderate level of 3, indicating an exposure category that encourages caution but isn’t overly concerning. With a burn time of just 30 minutes, it's a reminder to enjoy the remaining days of sun, especially as the season shifts towards cooler months. This pattern reflects a gradual decrease in UV exposure since the summer peak, where July and June saw the highest values of 6. The transition from brighter summer days to the gentler sunshine of autumn is evident, making it an ideal time to relish the outdoors while keeping skin protection in mind. For more detailed information, visit Skelleftea UV Index.
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As September rolls into Skellefteå, residents can relish the shimmering embrace of the autumn sun, basking in 286 hours of daylight—though a noticeable dip from the vibrant summer months. Following the peak of June and July, where daylight flourished with over 500 hours, September marks a transition, as the day length begins to wane in anticipation of the darker months ahead. Yet, this decline is tempered by the soft glow of early fall, presenting a perfect blend of warm hues and crisp air. The dramatic reduction from May's generous 452 hours sets the stage for cozy evenings, inviting both locals and visitors to savor the lingering warmth of summer's end while preparing for the serene beauty of autumn’s arrival.
In Skellefteå, Sweden, the likelihood of sunny weather experiences a notable peak in the summer months, with July boasting a 55% chance of sun. As we transition into September, this sunny trend begins to wane, dropping to 26%, which indicates a shift towards cloudier days as autumn approaches. The months leading up to September, particularly June and July, showcase a vibrant increase in sunny hours, while the cooler months—from October onwards—experience a significant decline, dipping as low as 14%. This pattern suggests that while September may still offer some pleasant days, the onset of fall brings a marked decrease in sunny conditions, paving the way for the darker and cloudier months ahead.
As September unfolds in Skelleftea, daylight begins to wane, offering approximately 12 hours of sunlight—a gentle reminder of the transitioning seasons. This month marks a shift from the summer’s long, sunlit days, peaking at 21 hours in June, to the more balanced yet diminishing light of autumn. September's daylight provides a comforting middle ground between the vibrant summer and the creeping darkness of winter, which is just around the corner. In comparison to August, which boasts 16 hours of daylight, September gradually ushers in the cozy nuances of fall, setting the stage for the enchanting colors and crisp air that characterize the latter part of the year. This rhythmic dance of daylight reflects nature’s cycle, inviting residents to embrace the change.
In September in Skellefteå, the wind begins to pick up slightly, averaging 3.8 m/s (9 mph). This marks a subtle transition from the calmer breezes of summer, as August's 3.7 m/s gave way to a freshening current that hints at the approaching autumn. Following a gradual decline from the early summer months, where wind speeds hovered around 3.4 to 3.6 m/s, September's gentle winds serve as a precursor to the rejuvenated gusts coming in October, which sees an increase to 4.5 m/s. This trend highlights a natural rhythm in Skellefteå's seasonal winds, where the shift towards autumn not only brings a crisp chill to the air but also a refreshing vigor in the breeze.
Weather in Skelleftea varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Skelleftea, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present striking contrasts in weather conditions. In September, temperatures range from a chilly 1°C (34°F) to a pleasant 19°C (66°F), with an average of 10°C (50°F). During this month, the area experiences about 75 mm (2.9 in) of precipitation over 11 days, accompanied by relatively high humidity levels of 88%. In contrast, January plunges into the depths of winter, where temperatures drop significantly, with a minimum of -22°C (-7°F) and a maximum of only 7°C (45°F), averaging -5°C (23°F). Precipitation in January is slightly lower at 57 mm (2.3 in) but maintains a similar frequency of 11 days, and humidity rises to a staggering 97%. For more details on January weather, you can visit Skelleftea weather in January.
When comparing the weather in September and February, a stark contrast emerges. September sees milder temperatures, with a minimum of -1°C (31°F) and an average of 10°C (50°F), peaking at 19°C (66°F). In contrast, February is significantly colder; temperatures can plummet to a minimum of -23°C (-9°F), with an average of -7°C (20°F) and a maximum of only 6°C (44°F). Precipitation levels are also noteworthy—September experiences 75 mm (2.9 in) over 11 days, while February has less precipitation at 43 mm (1.7 in) across 8 days. Humidity is slightly higher in February at 95%, compared to September's 88%, adding to the wintry atmosphere. For more information on the specific weather patterns in February, visit Skelleftea weather in February.
In comparing the weather of September and March, we find notable differences in temperature and precipitation. September enjoys a milder climate, with average temperatures ranging from a minimum of -1°C (31°F) to a maximum of 19°C (66°F), while March is considerably colder, featuring a much lower average of -3°C (27°F), with temperatures dipping to -17°C (2°F) at night. Additionally, September experiences higher precipitation levels, with 75 mm (2.9 in) over 11 days, contrasted with March's 40 mm (1.6 in) over 9 days. The humidity levels remain relatively high in both months, with September at 88% and March slightly higher at 90%. For a more detailed look at March's specific conditions, you can visit Skelleftea weather in March.
When comparing the weather between September and April, we see notable differences in temperature and precipitation patterns. September experiences a milder average temperature of 10°C (50°F), with highs reaching up to 19°C (66°F), whereas April starts cooler with an average of just 1°C (34°F) and lows dropping to -10°C (15°F). In terms of precipitation, September has a higher total of 75 mm (2.9 in) over 11 days compared to April's lighter rainfall of 30 mm (1.2 in) over only 7 days. Humidity levels are relatively close, with September at 88% and April at 84%, but both months maintain a notably moist atmosphere. For more details, you can check the full report on Skelleftea weather in April.
In comparing the weather of September and May, we observe notable differences in temperature and precipitation. September typically experiences a milder temperature range, with an average of 10°C (50°F) and a maximum of 19°C (66°F). In contrast, May has slightly cooler average temperatures, peaking at 21°C (71°F) but with a lower average of 7°C (44°F). Precipitation levels in September are higher, averaging 75 mm (2.9 in) over 11 days, compared to May's 49 mm (1.9 in) over 8 days. Additionally, September has a higher humidity level at 88%, while May's humidity is at a more comfortable 81%. For more details on May weather, you can check Skelleftea weather in May.
When comparing the weather in September and June, notable differences emerge in temperature and precipitation. September experiences a cooler climate, with average temperatures ranging from a minimum of -1°C (31°F) to a maximum of 19°C (66°F), while June offers a warmer average, with temperatures fluctuating between 3°C (37°F) and 27°C (81°F). Additionally, September sees more rainfall, accumulating 75 mm (2.9 in) over 11 days, compared to June's 54 mm (2.1 in) across just 7 days. Humidity levels are also higher in September at 88%, compared to 78% in June. For a detailed look at June weather, you can visit Skelleftea weather in June.
In comparing the weather between September and July, we see distinct differences. September features cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 19°C (66°F), contributing to an average of 10°C (50°F). In contrast, July enjoys a much warmer climate, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 28°C (83°F), resulting in an average temperature of 16°C (61°F). While both months record a similar number of precipitation days at 11, September sees a higher total precipitation of 75 mm (2.9 in) compared to July's 68 mm (2.7 in) despite having slightly lower humidity levels at 88% versus July's 82%. For a detailed look at July's weather, you can visit Skelleftea weather in July.
As summer transitions into autumn, September experiences notably cooler temperatures compared to August. While August sees a minimum temperature of 7°C (44°F) and an average of 15°C (59°F), September drops to a minimum of -1°C (31°F) with an average of 10°C (50°F). The maximum temperature also significantly decreases from August's 26°C (79°F) to September's 19°C (66°F). Although precipitation levels remain relatively similar, with August receiving 79 mm (3.1 in) over 13 days compared to September's 75 mm (2.9 in) over 11 days, the humidity is slightly higher in September at 88%, compared to August's 84%. For a more detailed look at August’s weather, visit Skelleftea weather in August.
In September, temperatures begin to cool, with a minimum of -1°C (31°F) and an average of 10°C (50°F), peaking at 19°C (66°F). The month experiences moderate precipitation of 75 mm (2.9 in) over 11 days, with humidity levels at a notable 88%. In contrast, October brings a more significant drop in temperatures, with a minimum of -8°C (18°F) and an average of 4°C (40°F), while the maximum temperature reaches 16°C (62°F). This month also sees increased rainfall, totaling 104 mm (4.1 in) over 17 days, and humidity rises to 92%. For more detailed information, check out Skelleftea weather in October.
September and November present notably different weather patterns. In September, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 19°C (66°F), with an average of 10°C (50°F). The month experiences 75 mm (2.9 in) of precipitation over 11 days and maintains a humidity level of 88%. In contrast, November sees much colder temperatures, with a minimum of -17°C (2°F) and an average of 0°C (32°F), peaking at 10°C (51°F). Precipitation decreases slightly to 63 mm (2.5 in) spread over 13 days, while humidity rises to 93%. For more details on what to expect, check Skelleftea weather in November.
September and December present a stark contrast in weather conditions. In September, temperatures range from a minimum of -1°C (31°F) to a pleasant average of 10°C (50°F), peaking at 19°C (66°F). The month experiences 75 mm (2.9 in) of precipitation over 11 days, accompanied by a relatively high humidity of 88%. In stark comparison, December brings much colder temperatures, with a minimum of -18°C (0°F) and an average of -3°C (27°F), reaching a maximum of just 6°C (42°F). Although the precipitation remains similar at 74 mm (2.9 in), it spans over 17 days, and the humidity rises to a chilly 96%. For a deeper understanding of December’s weather specifics, visit Skelleftea weather in December.
As September unfolds in Skellefteå, the transition from summer to autumn becomes palpable, marked by a notable drop in temperatures compared to the warmer months. While daytime highs gently reach around 19°C (66°F), the evenings bring a brisk chill, often dipping close to freezing. The increased precipitation, with 75 mm over approximately half the month, adds a layer of gloom typical of the season, contributing to the notably high humidity levels of 88%. This combination of cooler temperatures and frequent rain distinguishes September from the preceding summer months, offering a unique, refreshing atmosphere for those ready to embrace the changing seasons. For more insights, check out Skelleftea Climate.