Last updated: August 27, 2025
In Jönköping, Sweden, September presents a captivating transition into autumn, characterized by a maximum temperature of 24°C (75°F) and a refreshing average of 12°C (54°F). As the month progresses, temperatures can dip to a brisk minimum of -1°C (30°F), hinting at the cooler days ahead. This month also sees 78 mm (3.1 in) of precipitation, falling over 12 days, contributing to the lush landscapes typical of the region. With humidity levels averaging around 82%, the air carries the crispness of autumn, making it an enchanting time to experience the scenic beauty of Jönköping.
As September unfolds in Jönköping, Sweden, the transition from summer to autumn brings a notable shift in temperatures. The month starts with cooler nights, dipping to a minimum of -1°C (30°F), while daytime temperatures comfortably reach an average of 12°C (54°F), peaking at a pleasant 24°C (75°F). This gradual decrease from the warmth of August is indicative of the region's seasonal change, offering a refreshing crispness in the air that signals the arrival of fall. With the days still holding onto some of summer's warmth, September is a delightful time to experience the beauty of changing leaves against the backdrop of Jönköping’s serene landscapes.
In September, Jönköping experiences significant rainfall, with a total precipitation of 78 mm (3.1 in), making it one of the wetter months of the year. This amount falls over 12 days, reflecting a steady pattern of autumnal showers that slowly transitions the region from late summer's warmth. Compared to neighboring months, September's rainfall is slightly lower than August's peak of 88 mm (3.4 in) but remains comfortably above the earlier spring months, with April and May receiving just 37 mm (1.5 in) and 65 mm (2.6 in), respectively. The trend of increased precipitation as the seasons change underscores the shift towards cooler temperatures that characterize the onset of fall in Sweden, marking September as a vital month for replenishing local water sources before winter sets in.
In September, Jönköping experiences a noticeable shift in humidity, with levels reaching 82%. This marks an increase from the drier months of July and August, which both registered at 65% and 71% respectively. As the summer warmth gradually gives way to the cooler autumn air, humidity levels rise, reminiscent of earlier months like April and May. Notably, September's humidity serves as a bridge towards the heavier humidity seen in the subsequent months, where levels climb back to 90% in October and peak at 92% in November. This pattern highlights a distinct seasonal transition, welcoming a more moisture-laden atmosphere as the year draws to a close.
As autumn approaches in Jönköping, Sweden, the UV Index in September reflects a notable shift from the height of summer. With a UV Index of 4, categorized as moderate, residents can expect a burn time of around 30 minutes. This marks a decrease from the peak summer values of 6 to 7, ensuring that while sun exposure remains pleasant, caution is still warranted. September’s milder index signals an easing of the intense summer sun, encouraging outdoor activities with appropriate sun protection. For more information on UV trends throughout the year, visit Joenkoeping UV Index.
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As summer transitions into fall, September in Jönköping, Sweden, offers a pleasing retreat with 269 hours of sunshine, marking a gentle decline from the vibrant days of July and August. The city's sunlight hours have steadily increased from a mere 72 hours in January to a peak of 449 hours in July, showcasing a significant seasonal shift. This month retains a generous amount of daylight, akin to the lush bursts of spring, yet hints at the approaching autumn with its notable decrease in sunshine compared to the summer months. With the 358 hours in April and 415 hours in May, September reveals a clear trend of dwindling hours as nature prepares for its winter slumber, captivating residents and visitors alike with its unique blend of warmth and subtlety.
In Joenkoeping, Sweden, the likelihood of sunny weather in September shows a notable dip, with only a 27% chance of sunshine. This follows a trend of fluctuating sun exposure throughout the year. After the brighter spring months, where sunshine peaks in April at 48%, the summer offers only moderate sun in July and August before September's decline. As the year progresses, sunny days seem to wane, with October dipping further to 22%, suggesting that September serves as a gentle transition from the vibrant warmth of summer to the cooler, cloudier months ahead.
As September unfolds in Jönköping, Sweden, the days gradually transition from the bright, long summer hours to the shorter days of autumn. With an average of 12 hours of daylight, it's a significant dip from the 17 hours enjoyed in June and July, but still a generous stretch compared to the impending winter months. This notable decrease in sunlight begins to hint at the seasonal shift, following the fuller days of summer while preparing the landscape for the quieter, cozier ambiance that autumn brings. In contrast to the vibrant month of May, with its 16 hours of daylight, September's light evokes a reflective mood, as day slowly gives way to longer nights ahead.
In September, Jönköping experiences a gentle breeze with an average wind speed of 3.4 m/s (8 mph), mirroring the calmer conditions of late summer. This month stands out as a transition period, where the wind starts to pick up slightly compared to the quieter days of July and August. As the seasons shift, September's winds herald the arrival of autumn, resembling the spring gusts of earlier months, yet bringing a fresh crispness that invigorates the landscape. With wind speeds gradually increasing as the year progresses, it's evident that this month serves as a bridge to the more robust winds of October, which further emphasizes the dynamic nature of Jönköping's climate.
Weather in Joenkoeping varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Joenkoeping, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather presents a more moderate climate with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 24°C (75°F), accompanied by an average of 12°C (54°F). The month experiences 78 mm (3.1 in) of precipitation over 12 days, and humidity levels are relatively high at 82%. In contrast, January is significantly colder, with temperatures dipping as low as -16°C (4°F) and averaging around 0°C (32°F). The maximum temperature in January reaches only 9°C (48°F), and precipitation decreases to 43 mm (1.7 in), occurring over 11 days, but the humidity rises to 92%. For a more detailed look at weather patterns, you can check Joenkoeping weather in January.
September and February present stark contrasts in weather conditions. In September, temperatures range from a minimum of -1°C (30°F) to a maximum of 24°C (75°F), with an average of 12°C (54°F). The month sees approximately 78 mm (3.1 in) of precipitation over 12 days, with humidity levels around 82%. In contrast, February is significantly colder, with temperatures dropping to a minimum of -15°C (5°F) and an average of -1°C (31°F), peaking at just 12°C (54°F). This month experiences lower overall precipitation at 54 mm (2.1 in) over about 10 days, but humidity is higher at 91%. For more detailed information on February weather specifics, you can visit Joenkoeping weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a chilly minimum of -1°C (30°F) to a pleasant maximum of 24°C (75°F), with an average of 12°C (54°F). The month sees 78 mm (3.1 in) of precipitation, spread over 12 days, and humidity levels hover around 82%. In stark contrast, March experiences colder conditions, with temperatures dipping as low as -15°C (5°F) and averaging just 1°C (34°F), peaking at 14°C (58°F). Despite having less precipitation at 52 mm (2.1 in), it still rains over 12 days, and humidity is slightly higher at 89%. For a deeper understanding of March weather, you can check Joenkoeping weather in March.
In comparing the weather of September and April, we see notable differences in temperature and precipitation patterns. September boasts a milder average temperature of 12°C (54°F), with maximums reaching up to 24°C (75°F), while April presents a cooler average of only 5°C (42°F) despite sharing the same maximum of 24°C (75°F). Additionally, September experiences more precipitation at 78 mm (3.1 in) over 12 days, compared to April's lighter 37 mm (1.5 in) spread across 8 days. Interestingly, both months maintain a consistent humidity level of 82%. For a detailed look at April's weather, you can check Joenkoeping weather in April.
In September, the weather tends to be milder with average temperatures around 12°C (54°F) and maximums reaching up to 24°C (75°F). The month experiences higher humidity at 82% and a bit more precipitation, totaling 78 mm (3.1 in) over 12 days. In contrast, May typically has a slightly cooler average temperature of 10°C (51°F) and can reach a maximum of 28°C (83°F). While May experiences a similar number of rainy days, it has less overall precipitation at 65 mm (2.6 in) and lower humidity at 70%. For more details on May weather, check out Joenkoeping weather in May.
September and June exhibit distinct weather patterns, reflecting the transition from summer to autumn. In September, temperatures range from a chilly minimum of -1°C (30°F) to a comfortable maximum of 24°C (75°F), with an average of 12°C (54°F). The month experiences significant precipitation, totaling 78 mm (3.1 in) over approximately 12 days, accompanied by high humidity at 82%.
In contrast, June boasts milder temperatures, with a minimum of 5°C (41°F) and a maximum reaching 31°C (87°F), culminating in an average temperature of 16°C (61°F). The precipitation in June is slightly lower at 72 mm (2.8 in) spread over 11 days, and the humidity is more moderate at 65%. For more details on June's climate, you can visit Joenkoeping weather in June.
In comparing the weather between September and July, a distinct contrast in temperatures and humidity levels is evident. September experiences cooler temperatures, with a minimum of -1°C (30°F) and an average of 12°C (54°F), while July boasts warmer conditions, with a minimum of 4°C (40°F) and an average of 17°C (62°F). Additionally, July reaches a maximum of 31°C (88°F), significantly higher than September's maximum of 24°C (75°F). Despite both months having similar levels of precipitation—around 80 mm (3.1 in)—July sees slightly more days of rainfall, with a total of 13 compared to September's 12 days. It's also worth noting that September's humidity is higher at 82%, while July maintains a lower humidity of 65%. For a closer look at July's weather specific to Joenkoeping, check Joenkoeping weather in July.
September sees cooler temperatures compared to August, with a minimum of -1°C (30°F) and a maximum of 24°C (75°F), while August boasts milder temperatures, ranging from a minimum of 4°C (39°F) to a maximum of 32°C (90°F). The average temperature in September is 12°C (54°F), significantly lower than August's average of 15°C (60°F). Additionally, September experiences slightly less rainfall with 78 mm (3.1 in) over 12 days, compared to August's 88 mm (3.4 in) over 14 days. Notably, September's humidity is higher at 82%, while August maintains a more comfortable level of 71%. For more details, check out Joenkoeping weather in August.
In comparing the weather between September and October, we see a noticeable decline in temperatures. September enjoys a milder average temperature of 12°C (54°F) with a maximum of 24°C (75°F), while October brings cooler conditions with an average of 7°C (46°F) and a maximum of 20°C (68°F). Additionally, October experiences slightly less precipitation at 74 mm (2.9 in) over 15 days, compared to September's 78 mm (3.1 in) over 12 days. The humidity also increases in October to 90%, up from September's 82%. For more detailed information on how October weather specifically affects Joenkoeping, visit Joenkoeping weather in October.
September and November present distinctly different weather patterns. In September, temperatures range from a minimum of -1°C (30°F) to a maximum of 24°C (75°F), with an average of 12°C (54°F). The month sees about 78 mm (3.1 in) of precipitation over 12 days, and the humidity hovers around 82%. In contrast, November experiences cooler temperatures, with lows dipping to -10°C (14°F) and highs reaching only 15°C (59°F), resulting in a much lower average of 4°C (39°F). Precipitation decreases to 50 mm (2.0 in) across 11 days, but humidity rises to 92%, creating a much crisper atmosphere. For more details on November weather, you can check Joenkoeping weather in November.
In September, the weather tends to be milder, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 24°C (75°F) and an average temperature of 12°C (54°F). This month sees about 78 mm (3.1 in) of precipitation over 12 days, with humidity around 82%. In contrast, December brings much colder conditions, with temperatures ranging from a low of -14°C (7°F) to a high of just 8°C (47°F), resulting in an average temperature of 0°C (33°F). Although precipitation decreases slightly to 57 mm (2.2 in) over 13 days, humidity rises to 91%. For those interested in further details, please check Joenkoeping weather in December.
As September unfolds in Jönköping, the weather transitions into a refreshing fall rhythm, with temperatures that offer a pleasant respite from the summer heat. The average temperature hovers around a mild 12°C, making it noticeably cooler than the balmy summer months. Visitors may experience variable conditions, as September also brings an increase in precipitation, with about 12 days of rain adding to the overall humidity of 82%. This month stands out for its unpredictability, allowing the beautiful autumn colors to emerge while hinting at the chillier days ahead. For those interested in a deeper dive into the region's weather patterns, explore the full details at Joenkoeping Climate.