Last updated: August 27, 2025
In September, Langesund, Norway, experiences a dynamic shift in weather as autumn approaches. The temperature fluctuates between a maximum of 22°C (71°F) and a minimum of 6°C (43°F), with an average of 14°C (57°F), creating a refreshing atmosphere. This month sees a notable precipitation total of 141 mm (5.5 in) over 15 days, contributing to the region's lush landscapes. With relatively high humidity levels at 86%, visitors can expect a crisp yet comfortable environment, perfect for outdoor activities and enjoying the stunning coastal views.
As September rolls into Langesund, Norway, the temperatures begin to shift, ushering in the first whispers of autumn. With lows around 6°C (43°F) and an average temperature peaking at 14°C (57°F), the warmth of summer is still palpable, yet the crispness in the air hints at the cooler months ahead. The maximum temperature can reach a pleasant 22°C (71°F), making it a delightful time for outdoor activities amidst the stunning autumn foliage. This transitional month stands out as a bridge between the warm summer days and the chill of fall, inviting visitors to experience the serene beauty of Langesund as the landscape transforms.
In September, Langesund experiences a notable increase in precipitation, with an impressive 141 mm (5.5 in) of rainfall over 15 days. This substantial amount marks a peak in the monthly averages, aligning with the transition into fall, where the weather begins to shift from the relatively dry summer months. The rainfall is significantly higher compared to earlier months like April, which saw only 36 mm (1.4 in) over just 5 days. As October approaches, the precipitation typically rises even further, but September serves as a clear indication of the changing seasons, bringing refreshing yet frequent showers to the picturesque coastal town. This pattern not only emphasizes the increasing moisture but also highlights the onset of the wetter months ahead.
September in Langesund, Norway marks a noticeable uptick in humidity, rising to 86% after the summer months. This increase follows a gradual decline from the more humid winter and spring months, where levels hovered around 93% to 83%. As August's humidity starts to fade to 78%, September introduces a refreshing return to the dampness typical of early autumn. This slight surge reflects the transitional nature of the season, as the warm days of late summer give way to the cooler, wetter conditions that define the upcoming months. Overall, September serves as a bridge in the humidity spectrum, hinting at the return to the heavier, more humid air of fall.
As September rolls in, Langesund, Norway, sees a slight dip in UV exposure, with the UV Index standing at 4—placatingly moderate compared to the summer months. This decrease from the high levels of July and June, when the index peaked at 7, signals a shift toward safer outdoor activities with a moderate burn time of 30 minutes. With protective measures still advisable, this month marks a transition as daylight diminishes moving into autumn. It's a great time to enjoy the lingering warmth of the sun while keeping an eye on skin safety. For more comprehensive information about UV levels throughout the year, explore Langesund UV Index.
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As summer gracefully transitions into autumn, September in Langesund, Norway, continues to bask in a generous amount of sunlight, boasting 284 hours of brilliant sunshine. While this marks a notable decline from the peak of 472 hours in July, it still reflects a warm embrace of early fall that invites outdoor exploration. The sunlight begins to wane as the year progresses, with October's sunny hours dropping to 233 and November dwindling further to 133. This downward trend, however, is a reminder of the vibrant summers past, and September serves as a delightful bridge, where the warmth of summer lingers just a little longer before the darker months set in.
In Langesund, Norway, the likelihood of sunny weather in September takes a noticeable dip, suggesting a transition towards the cloudier months. While the sunny days begin to rise from the depths of winter in January at just 36%, they peak in April at a hopeful 60%. However, as summer fades, September sees the chances of sunshine drop to a modest 29%, falling below the sun-filled months of July and August and closely mirroring the gloominess that characterizes late autumn and winter. This trend highlights the fleeting nature of summer's brightness in the region, making September a time to cherish the sun while it lingers, albeit less frequently.
As summer wanes in Langesund, Norway, September brings a gentle transition from the long, sun-soaked days of June and July to shorter daylight hours. With approximately 12 hours of daylight, September retains a generous amount of light, allowing residents to enjoy the fading warmth of the season. This month marks a distinct shift from the peak beyond 18 hours in June, yet stands in stark contrast to the impending darkness of winter, where daylight dwindles to just 6 hours by December. As the days gradually shorten, the landscape transforms, inviting a blend of vibrant autumn colors while reminding the community of winter's approach.
As the summer wanes in Langesund, Norway, the arrival of September brings a gentle increase in wind speed, averaging 4.4 m/s (10 mph). This slight uptick from the more tranquil summer months, where July and August lingered around 3.5 m/s, signals a transition towards the brisker conditions of autumn. Notably, September is a precursor to October's notable spike, hitting an average of 5.7 m/s (13 mph). This steady progression showcases nature's rhythm, as the winds gradually strengthen, foreshadowing the more robust currents that define the northern climate in the months to come.
Weather in Langesund varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Langesund, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather. In September, temperatures range from a pleasant 6°C (43°F) at night to a comfortable 22°C (71°F) during the day, with an average of 14°C (57°F). However, this month also brings considerable rainfall, averaging 141 mm (5.5 in) over about 15 days, along with a high humidity level of 86%. In contrast, January experiences much colder conditions, with nighttime lows plunging to -10°C (14°F) and daytime highs only reaching up to 11°C (51°F), resulting in an average of just 1°C (35°F). The precipitation in January is lower at 78 mm (3.1 in) but occurs over fewer days (9 days), with an even higher humidity level of 93%. For more specific insights, you can visit Langesund weather in January.
September and February present contrasting weather patterns. September enjoys milder temperatures ranging from a minimum of 6°C (43°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). This month sees significant rainfall, accumulating to 141 mm (5.5 in) over approximately 15 days, paired with high humidity at 86%. In contrast, February experiences much colder temperatures, with a minimum of -11°C (13°F) and a maximum of only 9°C (49°F), bringing the average down to just 1°C (34°F). Although February has less precipitation, totaling 83 mm (3.3 in) over about 12 days, it features a slightly higher humidity level at 91%. For more detailed weather information, you can check out Langesund weather in February.
In September, the weather in Langesund is notably milder, with temperatures ranging from a minimum of 6°C (43°F) to a pleasant maximum of 22°C (71°F) and an average of 14°C (57°F). The month sees about 141 mm (5.5 in) of precipitation over 15 days, combined with high humidity at 86%. In contrast, March experiences much colder weather, with temperatures dropping as low as -11°C (13°F) and reaching a maximum of 14°C (58°F), averaging only 3°C (37°F). Although March has less precipitation at 79 mm (3.1 in) over 10 days, the humidity is slightly higher at 88%. For more details, you can check out Langesund weather in March.
In comparing the weather of September and April, September emerges as a much milder and wetter month. With average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 22°C (71°F), it offers a more comfortable climate than April, where temperatures can dip as low as -5°C (23°F) and only reach up to 16°C (61°F) on average. Additionally, September experiences significantly more rainfall, with 141 mm (5.5 in) spread over 15 days, compared to April's 36 mm (1.4 in) over just 5 days. The humidity is also slightly higher in September at 86%, compared to 83% in April. For a closer look at April’s climate, you can check out Langesund weather in April.
In September, the weather typically displays a wider temperature range compared to May, with minimums around 6°C (43°F) and maximums reaching up to 22°C (71°F). The average temperature of 14°C (57°F) and high humidity level of 86% contribute to a cooler and more damp atmosphere, as evidenced by the average precipitation of 141 mm (5.5 in) over 15 days. Conversely, May features milder conditions with a minimum temperature of 2°C (35°F) and maximums soaring to 26°C (79°F), translating to an average of 11°C (52°F). Although May has less rainfall—about 75 mm (3.0 in) over 9 days and lower humidity at 75%—the warmth and lower precipitation create a more pleasant and vibrant environment. For more details on May weather, visit Langesund weather in May.
When comparing the weather in September and June, notable differences emerge. June typically offers slightly warmer temperatures, with an average of 16°C (61°F) and a maximum of 26°C (79°F), compared to September's average of 14°C (57°F) and maximum of 22°C (71°F). Additionally, June experiences less precipitation, averaging 85 mm (3.4 in) over 9 days, in contrast to September's more significant rainfall of 141 mm (5.5 in) spread over 15 days. Furthermore, the humidity levels are generally lower in June at 74%, making for a more comfortable feel compared to September's higher humidity of 86%. For more detailed insights, you can visit Langesund weather in June.
When comparing the weather in September and July, it's clear that July is generally warmer and drier. In July, temperatures range from a minimum of 11°C (51°F) to a maximum of 27°C (80°F), with an average of 18°C (64°F) and lower humidity at 74%. In contrast, September experiences cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 22°C (71°F), averaging 14°C (57°C). Additionally, September has more precipitation, totaling 141 mm (5.5 in) over 15 days, while July sees only 88 mm (3.5 in) across 10 days. For a detailed look at July weather in Langesund, visit Langesund weather in July.
September weather is noticeably cooler and wetter than August. With average temperatures ranging from a minimum of 6°C (43°F) to a maximum of 22°C (71°F), September sees a decline in warmth compared to August, which has a minimum of 10°C (50°F) and a maximum of 24°C (75°F). Additionally, September experiences higher precipitation levels, with 141 mm (5.5 in) over 15 days, contrasted with August’s 87 mm (3.4 in) over 11 days. The humidity in September also rises to 86%, reflecting the increased moisture in the air compared to the 78% humidity of August. For more details, you can check Langesund weather in August.
September and October exhibit notable differences in weather patterns. In September, temperatures range from a mild minimum of 6°C (43°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). The month experiences significant precipitation, totaling 141 mm (5.5 in) over 15 days, accompanied by a high humidity level of 86%. In contrast, October sees a drop in temperatures, with a minimum of 0°C (33°F) and a maximum of 16°C (61°F), resulting in an average of just 10°C (50°F). Precipitation increases slightly to 163 mm (6.4 in) spread over 16 days, and humidity also rises to 92%. For a detailed look at the weather during this month, check out Langesund weather in October.
In September, temperatures begin to cool with a minimum of 6°C (43°F) and an average of 14°C (57°F), peaking at a comfortable 22°C (71°F). The month sees significant rainfall, with 141 mm (5.5 in) spread over 15 days, and humidity levels are fairly high at 86%. By November, the weather shifts dramatically, with temperatures dropping further to a minimum of -4°C (25°F) and an average of 6°C (42°F), while the maximum reaches only 14°C (58°F). Precipitation remains nearly consistent at 137 mm (5.4 in) over 17 days, and humidity increases slightly to 92%. For more detailed information about weather conditions in November, you can visit Langesund weather in November.
In September, temperatures in Langesund are relatively mild, ranging from a minimum of 6°C (43°F) to a maximum of 22°C (71°F), with an average of 14°C (57°F). The month experiences considerable rainfall, totaling 141 mm (5.5 in) over about 15 days and a humidity level of 86%. By December, the weather takes a sharp turn; temperatures drop significantly, with a minimum of -6°C (22°F) and a maximum of only 11°C (52°F), resulting in a colder average of 2°C (36°F). Precipitation increases slightly to 147 mm (5.8 in), spread over 17 days and accompanied by higher humidity at 92%. For a more detailed look at December weather, you can visit Langesund weather in December.
As September unfolds in Langesund, the transition from warm summer days to the cooler embrace of autumn becomes evident. With temperatures hovering around a pleasant 14°C (57°F), the month often showcases milder maximums, making it a comfortable time for outdoor activities despite the occasional chill. Visitors can expect increased humidity levels and a higher likelihood of rain, with around 15 days of precipitation contributing to a total of 141 mm (5.5 in). This blend of weather patterns not only enhances the lush landscape but also brings a unique charm to the coastal town as it prepares for the crispness of fall. For further insights on the annual climate patterns, visit Langesund Climate.