Last updated: August 27, 2025
In Mariefred, Sweden during September, the weather presents a delightful transition into autumn. With a maximum temperature of 25°C (77°F), residents enjoy warm days, while the average temperature settles around a comfortable 13°C (55°F). However, evenings can be brisk, dipping down to as low as 0°C (32°F). The month sees 59 mm (2.3 in) of precipitation over approximately 10 days, contributing to the lush scenery of the region. Coupled with an humidity level of 83%, the air takes on a refreshing quality, making September an inviting yet variable time to experience the enchanting charm of Mariefred.
As September rolls into Mariefred, Sweden, the transition from summer warmth to autumn chill becomes evident. With temperatures starting at a chilly 0°C (32°F) and peaking at a comfortable 25°C (77°F), the month offers a delightful average of 13°C (55°F), inviting both locals and visitors to enjoy the crisp air. This gradual cooling contrasts sharply with the sweltering heights of July and August, marking a shift towards fall. As days shorten and the trees begin to don their autumn hues, September serves as a gentle reminder of the seasonal changes ahead, making it an ideal time for outdoor activities amidst the scenic beauty of this charming town.
September in Mariefred, Sweden, sees a notable shift in precipitation patterns, with 59 mm (2.3 in) of rain over 10 days. This amount marks a decrease from the preceding month's 80 mm (3.1 in), suggesting a transition towards the drier autumn months. As summer's lush greenery gives way to early fall hues, September's weather reflects a balance between moisture and crispness, making it a refreshing time for outdoor activities. The rain in this month tends to be more sporadic, helping to foster the vibrant colors of the season while still ensuring the ground remains nourished as nature prepares for winter.
In Mariefred, Sweden, September ushers in a noticeable rise in humidity, with levels reaching 83%. This increase follows a summer where humidity peaked at a relatively low 72% in August, indicating a subtle shift as autumn approaches. Throughout the year, humidity levels in Mariefred showcase a pattern of gradual decline from the high of 91% in January to their lowest point in July at 67%. As the seasons change, the humidity begins to climb again, particularly evident in September and into October, where it reaches 89%. This cyclical trend highlights Mariefred's transition from summer's drier warmth to the crisp, moisture-laden air of autumn.
In September, Mariefred, Sweden experiences a UV Index of 4, indicating a moderate exposure category that requires some caution for sunbathers and outdoor enthusiasts. As the summer wanes, the UV Index sees a gradual decline from the peak values of July and June (both at 7), transitioning through August's 5. Despite this decrease, a burn time of just 30 minutes reminds residents and visitors to remain vigilant against sun exposure. This pattern illustrates a clear seasonal trend towards lower UV levels as autumn approaches, making it a perfect time to enjoy the beautiful outdoor scenery while keeping skincare in mind. For more detailed information, check the Mariefred UV Index.
UV Risk Categories
As the vibrant hues of September settle over Mariefred, Sweden, the sun bestows a generous 297 hours of radiant light, offering a warm embrace before the chill of autumn sets in. This month serves as a gentle transition, reflecting a significant dip from the sun-soaked 479 hours in July, yet still radiating more sunlight than the winter months that lie ahead. With September positioned as a pivotal moment in the annual cycle, it showcases a remarkable shift from the peak of summer to the mellow tones of fall. The gradual decline in sunlight from the summer months is evident, yet September’s golden rays invite both locals and visitors to revel in the natural beauty of the changing landscapes, making every hour of sunshine feel like a precious gift.
As autumn approaches, the likelihood of sunny weather in September in Mariefred, Sweden, witnesses a notable dip, with only 26% chance of sunshine. This marks a decline from the slightly brighter summer months, particularly July, which boasts the highest sun probability at 52%. Following this peak, the transition to autumn sees a consistent downward trend, where August also drops to 35% and September continues the downward spiral. This indicates that while September still holds some promise for pleasant days, the chances for sun are noticeably diminished, encouraging visitors to prepare for more variable weather as the seasons shift.
As the summer sun begins its retreat, September in Mariefred, Sweden, offers a gentle transition from the long days of summer to the shorter daylight hours of autumn. With 12 hours of daylight, the month strikes a balance, still carrying the warmth and brightness of late summer, yet hinting at the upcoming changes. Following the peak of 18 hours in June, daylight steadily decreases—first to 17 hours in July and 15 hours in August, before settling into a comforting rhythm. This trend reflects the natural ebb and flow of the seasons, as the vibrant energy of summer gracefully gives way to the crisper, shorter days of fall.
As September rolls in Mariefred, Sweden, the winds pick up with an average speed of 3.4 m/s (8 mph), slightly higher than the calmer summer months. This transition hints at the approach of autumn, as the gentle breezes of summer give way to a more invigorating air. Interestingly, September's winds mirror those of February, suggesting a natural cyclical rhythm in the area’s climate. As temperatures begin to dip, this increase in wind speed creates a refreshing atmosphere, inviting both locals and visitors to embrace the shifting season. With October looming just around the corner, the gusts will grow even stronger, further heralding the change of the seasons.
Weather in Mariefred varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Mariefred, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is quite mild with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (77°F), averaging around 13°C (55°F). This month also sees about 59 mm (2.3 in) of precipitation spread over approximately 10 days, accompanied by a humidity level of 83%. In contrast, January brings a stark chill, with temperatures dipping to a minimum of -21°C (-5°F) and peaking at 10°C (50°F), averaging around -1°C (31°F). The precipitation is lower at 37 mm (1.4 in) over about 7 days, but the humidity is slightly higher at 91%. For those interested in the specifics of January weather, you can find more information here: Mariefred weather in January.
September and February present stark contrasts in weather. In September, temperatures range from a chilly 0°C (32°F) at night to a comfortable 25°C (77°F) during the day, with an average of 13°C (55°F). The month experiences moderate precipitation of 59 mm (2.3 in) over about 10 days, coupled with relatively high humidity at 83%. In contrast, February sees much colder temperatures, with lows reaching -15°C (5°F) and highs peaking at just 11°C (51°F), averaging -1°C (31°F). While it has less precipitation at 32 mm (1.2 in) over 8 days, humidity remains high at 89%, making the air feel even colder. For more details on the February weather, you can check Mariefred weather in February.
September and March present contrasting weather patterns, with each month showcasing its unique characteristics. In September, temperatures range from a minimum of 0°C (32°F) to a maximum of 25°C (77°F), resulting in a comfortable average of 13°C (55°F). The month sees about 59 mm (2.3 in) of precipitation spread over approximately 10 days, accompanied by a relatively high humidity level of 83%. Conversely, March experiences colder conditions, with temperatures ranging from a chilly -15°C (6°F) to a warmer 17°C (62°F), yielding an average of just 2°C (35°F). Precipitation is slightly lower at 41 mm (1.6 in) over 8 days, and humidity is a bit higher at 88%. For a detailed look at March weather in a specific location, you can visit Mariefred weather in March.
When comparing the weather in September and April, notable differences emerge. September typically boasts a milder temperature range, with minimums around 0°C (32°F) and maximums reaching up to 25°C (77°F), whereas April experiences cooler conditions, with minimums dipping to -8°C (19°F) and maximums peaking at 22°C (71°F). Precipitation is also more significant in September, totaling 59 mm (2.3 in) over approximately 10 days, compared to April's 29 mm (1.1 in) across 8 days. Humidity levels are relatively similar, with September at 83% and April slightly lower at 82%. For more specific details about April weather, you can visit Mariefred weather in April.
In comparing the weather between September and May, September tends to be slightly warmer overall, with an average temperature of 13°C (55°F) compared to May’s average of 11°C (51°F). Both months experience similar levels of precipitation, with September recording 59 mm (2.3 in) over about 10 days and May seeing 60 mm (2.4 in) across 11 days. However, humidity levels are notably different; September has a higher humidity at 83%, while May's humidity is lower at 71%. For more details on May's weather, you can visit Mariefred weather in May.
In comparing the weather of September and June, we see notable differences in temperature and humidity. September has a wider temperature range, with minimum temperatures dropping to 0°C (32°F) and maximums reaching 25°C (77°F), averaging around 13°C (55°F). In contrast, June enjoys milder conditions, with minimum temperatures starting at 5°C (41°F) and maximums peaking at 29°C (84°F), averaging 17°C (62°F). While both months experience some rainfall—September with 59 mm (2.3 in) over 10 days and June slightly wetter with 62 mm (2.4 in) over 9 days—September's humidity is significantly higher at 83%, compared to June's 69%. For more details on June weather specifically, check out Mariefred weather in June.
When comparing the weather in September to that of July, September tends to be cooler, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (77°F) and an average of 13°C (55°F). In contrast, July enjoys warmer temperatures, with lows of 7°C (45°F) and highs reaching 30°C (87°F), averaging 18°C (65°F). While both months experience similar levels of precipitation, September has slightly lower rainfall at 59 mm (2.3 in) over 10 days, compared to July's 63 mm (2.5 in) over 11 days. Additionally, September's humidity is higher at 83%, making it feel more humid than the comparatively drier July, which has a humidity level of 67%. For more detailed information, you can check Mariefred weather in July.
In comparing the weather between September and August, September typically experiences cooler temperatures, with a minimum of 0°C (32°F) and an average around 13°C (55°F), while August is warmer, with a minimum of 5°C (41°F) and an average of 17°C (62°F). The maximum temperatures also reflect this trend, reaching up to 25°C (77°F) in September compared to 29°C (85°F) in August. Additionally, September sees more precipitation than August, with 59 mm (2.3 in) over 10 days compared to 80 mm (3.1 in) over 14 days in August. The humidity is higher in September at 83%, compared to 72% in August, making the latter month feel comparatively more comfortable. For more detailed insights, you can check out Mariefred weather in August.
In September, temperatures range from a minimum of 0°C (32°F) to a maximum of 25°C (77°F), with an average of 13°C (55°F). The month typically sees around 59 mm (2.3 in) of precipitation over about 10 days, accompanied by a humidity level of 83%. In contrast, October brings cooler temperatures, with a minimum of -3°C (26°F), an average of 8°C (46°F), and a maximum of 18°C (65°F). Precipitation increases slightly to 69 mm (2.7 in), occurring on about 12 days, while humidity rises to 89%. For a more detailed look at the weather in October, you can check out Mariefred weather in October.
September and November present contrasting weather conditions, reflecting the transition from early autumn to late fall. In September, temperatures range from a minimum of 0°C (32°F) to a comfortable maximum of 25°C (77°F), with an average of 13°C (55°F), while experiencing relatively high humidity at 83% and about 59 mm (2.3 in) of precipitation over roughly 10 days. Conversely, November sees a significant drop in temperatures, with lows reaching -12°C (11°F) and an average of only 4°C (39°F), though the maximum temperature remains mild at 15°C (60°F). Precipitation decreases to 43 mm (1.7 in) across about 9 days, accompanied by a higher humidity level of 91%. For a detailed look at November weather, you can visit Mariefred weather in November.
In September, the weather is notably milder, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 25°C (77°F), and an average of 13°C (55°F). This month experiences around 59 mm (2.3 in) of precipitation over approximately 10 days, coupled with a relative humidity of 83%. In contrast, December brings much colder temperatures, with a minimum of -20°C (-3°F) and a maximum of just 9°C (49°F), resulting in an average temperature of 0°C (33°F). December sees slightly less precipitation at 57 mm (2.2 in), but over a greater number of days—14 in total—and with a higher humidity level of 90%. For a closer look at December weather specifics, you can visit Mariefred weather in December.
As September unfolds in Mariefred, it ushers in a distinct shift in weather patterns. With an average temperature of 13°C, the month provides a comfortable yet crisp respite from the summer heat, where maximums can still reach a pleasant 25°C. Rainfall makes its presence known with 59 mm of precipitation over approximately 10 days, hinting at the transition towards autumn. The increased humidity at 83% adds a layer of chill that is unique to this month, contrasting with the dryness of summer. For those curious about the broader climatic trends in Mariefred, further details can be found at Mariefred Climate.