Last updated: August 27, 2025
September in Ålesund, Norway presents a unique blend of cool temperatures and abundant rainfall, making it a month of transition towards the autumn season. With a maximum temperature peaking at 19°C (67°F) and an average hovering around 12°C (53°F), residents and visitors can expect brisk conditions. Nighttime lows can dip to a chilly 4°C (40°F), making layers essential for comfort. Rain is frequent, with approximately 309 mm (12.2 in) of precipitation spread across 20 days, contributing to the region's lush, green landscape. The air is thick with humidity at 87%, creating a refreshing yet damp atmosphere that highlights Ålesund’s coastal beauty.
September in Ålesund, Norway, marks the gentle transition from the warmth of summer to the chill of autumn. With temperatures ranging from a low of 4°C (40°F) to a comfortable high of 19°C (67°F), this month offers a delightful balance of mild weather that invites outdoor exploration. The average temperature hovers around 12°C (53°F), indicating that while the days begin to cool, the lingering warmth creates perfect conditions for enjoying the breathtaking fjord views and vibrant fall foliage. This shift signals the onset of shorter days, yet offers a lovely opportunity to experience Ålesund's unique charm before winter arrives.
In September, Ålesund experiences a notable uptick in precipitation, with an impressive 309 mm (12.2 in) of rainfall, marking it as one of the wettest months of the year. This increase in precipitation is coupled with 20 rainy days, underscoring the arrival of autumn and its characteristic storms. Transitioning from the milder summer months, where rainfall averages around 172 mm (6.8 in) in August, September’s downpour signals a shift, leading into the even wetter October, which averages 313 mm (12.3 in). The trend of increasing rain during this period reflects the coastal climate’s variability, as Ålesund prepares for the winter months ahead.
In September, Ålesund, Norway experiences a notable humidity of 87%, continuing the trend set by the preceding summer months. This slight increase from August's 87% indicates a transition into the autumn season, where moisture levels tend to stabilize around this percentage. Throughout the year, humidity levels hover between 83% and 87%, with January showcasing the highest average at 85%. Interestingly, after August, the humidity remains consistent until November, suggesting that Ålesund's coastal climate maintains a relatively high moisture content as the seasons change. This persistent humidity adds to the town's enchanting atmosphere, often accompanied by stunning misty views of the surrounding fjords.
As September unfolds in Alesund, Norway, the UV Index reflects a moderate level of solar exposure, with a rating of 4 and a burn time of 30 minutes. This signals a gentle transition from the summer months, where UV levels peaked at 6 in July and June, demanding more caution for sun exposure. The trend shows a gradual decrease in intensity from the sun's rays as autumn approaches, with October dipping further to a low UV Index of 2. Those venturing outdoors in September should remain mindful of their sun protection practices, enjoying the mild weather while staying safe. For more detailed insights on how UV levels change throughout the year, you can check the Alesund UV Index.
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As summer gracefully transitions into autumn, September in Ålesund, Norway, showcases a delightful 264 hours of sunshine. This marks a gentle decline from the sun-kissed joy of July, which boasts the highest average at 446 hours, signaling a gradual but beautiful shift in the daylight hours. While the days may be getting shorter, the vibrant hues of early fall offer a captivating backdrop, making the lingering warmth of late summer still palpable. September’s sunshine, notably more abundant than the dimmer months ahead, invites residents and visitors alike to relish the outdoors before winter's embrace.
In Alesund, Norway, September brings a notable dip in sunny weather, with the chance of sunshine plummeting to just 18%. This marks a decline from the somewhat brighter conditions of late summer, where August holds a 38% likelihood of sun. As the days shorten and autumn sets in, the trend illustrates a transition from the milder, sunnier days of April through August to the more overcast and damp months of October and November, which linger around 14% to 15%. Visitors to Alesund in September should be prepared for the possibility of cloudy skies, as the region gradually braces for the darker, wetter months ahead.
As summer gives way to autumn in Ålesund, Norway, September marks a notable transition in daylight hours. With 12 hours of daylight, September finds itself balancing between the long, sunlit days of summer—where June peaks at an impressive 19 hours—and the shorter, dimmer days of winter that lie ahead. While this month offers a more moderate light duration compared to the 15 hours enjoyed in August, it still holds onto a glimmer of summer's warmth. As October looms, daylight will continue to wane, gradually ushering in the 9 hours anticipated next month. The gradual decline in sunlight serves as a poignant reminder of nature's cyclical rhythm, inviting both reflection and appreciation for the fleeting days of late summer.
As September unfolds in Ålesund, Norway, the wind whispers a familiar tune, with an average speed of 4.5 m/s (10 mph)—a resurgence from the quieter breezes of summer, which dipped to just 3.6 m/s (8 mph) in August. This gentle uptick in wind speed mirrors a broader trend, as autumn approaches, bringing with it an invigorating energy that peaks in the months ahead. With October and November both marking significant increases to 5.6 m/s (12 mph) and 5.6 m/s (13 mph) respectively, the winds signal a transition into the heart of the season, infusing the coastal city with both a brisk chill and scenic charm. With summer's calm behind, September's winds remind us of nature's rhythmic change, setting the stage for the vibrant transformations of fall.
Weather in Alesund varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Alesund, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, weather in Alesund is generally milder, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 19°C (67°F) and an average of 12°C (53°F). This month sees considerable rainfall, totaling 309 mm (12.2 in) over about 20 days, along with high humidity levels at 87%. In contrast, January brings colder conditions, with temperatures dropping to a minimum of -6°C (21°F) and averaging just 2°C (36°F), peaking at 9°C (49°F). Although January has less precipitation, at 191 mm (7.5 in) over 18 days, the humidity remains relatively similar at 85%. For more detailed information on January weather, you can visit Alesund weather in January.
September and February present contrasting weather patterns. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 19°C (67°F), with an average of 12°C (53°F). This month experiences significant rainfall, with 309 mm (12.2 in) of precipitation over 20 days and a high humidity level of 87%. In stark contrast, February boasts much colder temperatures, with a minimum of -10°C (15°F), an average of 2°C (35°F), and a maximum of just 10°C (51°F). The precipitation in February is also lower, totaling 147 mm (5.8 in) over 16 days, accompanied by lower humidity at 84%. For more detailed information, you can check Alesund weather in February.
September and March present notably different weather patterns. September typically enjoys milder temperatures, with averages around 12°C (53°F) and maximums reaching 19°C (67°F), while March is cooler, averaging only 3°C (37°F) and peaking at 10°C (50°F). Precipitation is more abundant in September, accumulating to 309 mm (12.2 in) over 20 days, compared to March's 170 mm (6.7 in) during the same number of days. Both months exhibit high humidity levels, with September slightly higher at 87% compared to March’s 84%. For more details on the climate during March, you can visit Alesund weather in March.
September and April present distinct weather patterns, with September generally milder and wetter than April. In September, temperatures range from a minimum of 4°C (40°F) to a maximum of 19°C (67°F), accompanied by an average humidity of 87%. In contrast, April sees cooler conditions, with temperatures fluctuating between -5°C (23°F) and 17°C (63°F), and a slightly lower humidity of 84%. Precipitation is significantly more abundant in September, measuring 309 mm (12.2 in) over 20 days, compared to April’s 158 mm (6.2 in) across 15 days. For more insights about weather conditions in April, you can check Alesund weather in April.
In comparing the weather between September and May, there are notable differences despite similar maximum temperatures. September tends to be slightly warmer on average, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 19°C (67°F), while May's temperatures range from a minimum of 0°C (32°F) to the same maximum of 19°C (66°F). September is also significantly wetter, receiving 309 mm (12.2 in) of precipitation over 20 days, compared to May's 104 mm (4.1 in) across 14 days. Although both months experience high humidity, September's humidity averages at 87%, slightly higher than May's 84%. For a more detailed look at May's climate, check here: Alesund weather in May.
In comparing the weather of September and June, it’s evident that both months share similar average temperatures, hovering around 12°C (53°F). However, September experiences a broader range, with maximum temperatures reaching 19°C (67°F), compared to June's higher maximum of 21°C (70°F). Additionally, September is significantly wetter, receiving 309 mm (12.2 in) of precipitation over approximately 20 days, while June sees only 108 mm (4.3 in) across 15 days. Humidity is also slightly higher in September at 87%, compared to June's 83%. For more detailed information, you can check Alesund weather in June.
In comparing the weather between September and July, September tends to be cooler, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 19°C (67°F), compared to July's warmer range of 7°C (45°F) to 23°C (74°F). Additionally, September experiences significantly more precipitation, totaling 309 mm (12.2 in) over 20 days, while July sees only 123 mm (4.8 in) over 13 days. Humidity levels are similar, standing at 87% in September and slightly lower at 86% in July. For those interested in detailed July weather, more information can be found in this link: Alesund weather in July.
In comparing the weather patterns of September and August, it's clear that September is cooler and wetter. While August enjoys higher average temperatures, with a minimum of 9°C (48°F) and a maximum of 23°C (74°F), September's temperatures drop considerably, ranging from a minimum of 4°C (40°F) to a maximum of 19°C (67°F). Additionally, September experiences significantly more rainfall, totaling 309 mm (12.2 in) over 20 days, compared to August's 172 mm (6.8 in) over 19 days. Both months share the same level of humidity at 87%, but the overall feel in September is much cooler and more damp. For a detailed look at August weather specifics, you can visit Alesund weather in August.
In comparing the weather between September and October, September tends to be slightly warmer, with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 19°C (67°F). In contrast, October experiences cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 16°C (61°F), leading to an overall average of just 8°C (47°F). Both months see considerable precipitation, with September receiving 309 mm (12.2 in) over 20 days and October recording 313 mm (12.3 in) over 23 days. Interestingly, humidity remains constant at 87% for both months, emphasizing a persistent dampness in the air. For a more detailed look at October weather in Alesund, you can visit Alesund weather in October.
September and November showcase a stark contrast in weather characteristics. In September, temperatures range from a cool minimum of 4°C (40°F) to a mild maximum of 19°C (67°F), making it relatively warmer on average at 12°C (53°F). However, this month experiences substantial rainfall, with 309 mm (12.2 in) over 20 rainy days and a humidity level of 87%.
In contrast, November brings colder temperatures, with a minimum of -6°C (21°F) and a maximum of 12°C (54°F), resulting in a lower average of 5°C (41°F). While precipitation decreases to 214 mm (8.4 in) over 17 days, humidity remains unchanged at 87%. For a more detailed comparison and insights on the weather trends, check out Alesund weather in November.
September and December present distinctly different weather patterns. September enjoys milder temperatures with a minimum of 4°C (40°F) and an average of 12°C (53°F), peaking at 19°C (67°F). However, it also experiences significant rainfall, totaling 309 mm (12.2 in) over about 20 rainy days, coupled with high humidity at 87%. In contrast, December brings colder conditions, with temperatures dropping to a minimum of -7°C (20°F) and an average of 3°C (37°F), only reaching a maximum of 9°C (49°F). While precipitation decreases to 210 mm (8.2 in) over 21 days, the humidity remains relatively high at 84%. For more details on winter conditions, check out Alesund weather in December.
As September rolls in, Ålesund experiences a distinct shift in weather compared to the balmy summer months. The temperatures dip, offering a refreshing feel with maximums around 19°C and averages settling around a cool 12°C. Though the air gets crisper, be prepared for a notable increase in precipitation, with rain falling on around 20 days of the month. This leads to a higher humidity level, reaching 87%, making it essential to pack an umbrella and lighter layers. For those looking to explore Ålesund's unique charm this time of year, understanding these weather nuances can enhance your experience. Discover more at Alesund Climate.