Last updated: February 24, 2025
In September, Eagle River experiences a dynamic transition into autumn, characterized by a maximum temperature reaching 30°C (86°F) and an average of 14°C (58°F). As the month progresses, the minimum temperature can dip to 1°C (34°F), showcasing the region's considerable temperature variability. Rainfall is notable, with a total precipitation amount of 98 mm (3.9 in) over 11 days, contributing to the lush landscapes that define this picturesque area. The humidity level hovers around 78%, adding to the refreshing yet slightly damp atmosphere that September offers.
In September, Eagle River experiences a noticeable transition as summer gives way to autumn. The temperatures reflect this shift; with nightly lows around 1°C (34°F), the days remain pleasantly warm, boasting an average of 14°C (58°F). This balance is marked by daytime highs that can still reach as high as 30°C (86°F), offering a last burst of warmth before the cooler months set in. As the month progresses, residents can expect to enjoy the tail end of outdoor activities, all while watching the stunning autumn colors emerge against a backdrop of crisp temperatures—an enchanting prelude to winter's approach.
In September, Eagle River experiences a notable shift in precipitation patterns, receiving 98 mm (3.9 in) of rain over 11 days. This amount is a slight decrease from August's 114 mm, but still maintains the region's reputation for wet weather as it transitions into fall. The consistency in rainfall throughout the summer months culminates in September's moderate precipitation, setting the stage for the upcoming autumn with its typical increase in rainfall, reaching 117 mm in October. This steady flow of moisture not only supports the verdant landscapes but also contributes to the area's enchanting atmosphere, especially as the leaves begin to turn.
In Eagle River, September sees a slight uptick in humidity levels, averaging around 78%, after a series of drier months during the summer. This seasonal shift marks the transition from the warm, relatively low-humidity summer months—where humidity dipped to its lowest at 73% in August—to the wetter autumn months ahead. Notably, the humidity fluctuates throughout the year, peaking in the winter with values close to 89% in January and November. Overall, September signals a return to the more humid conditions characteristic of the colder months, setting the stage for October's increase back to 84%. This pattern reflects the region's climate, where summer warmth gradually gives way to the dampness of fall.
As summer fades into autumn, September marks a noticeable shift in the UV Index for Eagle River, with a value of 7, indicating a high exposure category that requires caution. This is a slight decline from the intense UV levels of August and July, which both peaked at 9. With a burn time of 25 minutes, September highlights the importance of sun protection as outdoor activities continue, though it's less intense than the very high levels experienced earlier in the summer months. As the year progresses, the UV Index will gradually drop, settling into more moderate levels by October. For those planning to enjoy the beautiful fall scenery, remember to factor in UV protection. For more detailed information, visit Eagle River UV Index.
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As summer fades into autumn, September in Eagle River welcomes a delightful 260 hours of sunshine, reflecting a gradual decline from the sun-drenched days of July and June. This month serves as a bridge between the vibrant summer and the crisp fall, showcasing a noticeable decrease in sunlight compared to the peak summer months. However, it maintains a generous amount of daylight, outshining the earlier months of the year. With the gradual shedding of leaves and the cool breeze setting in, September's golden rays offer a perfect backdrop for outdoor adventures and picturesque landscapes, all while hinting at the approaching, quieter months of fall and winter.
In Eagle River, the likelihood of sunny weather in September is quite promising, with a 52% chance of sunshine gracing the days. This marks a notable transition from the peak summer months, where July and August enjoy higher probabilities of sunlight at 59% and 58% respectively. As the year progresses, the trend suggests that while the sunny days begin to wane in fall, September still holds onto a favorable amount of bright weather. Compared to the less sunny months of November and December, which drop to 31% and 19%, this makes September a delightful time to enjoy the crisp air under the sun before the colder months set in. Embrace the beauty of early autumn in Eagle River, where the sun still shines brightly just as summer begins to bid farewell.
As the seasons change, Eagle River embraces a beautiful transition in daylight duration throughout the year. September marks a notable shift, with 12 hours of daylight, gently tapering from the peak of 15 hours experienced in June and July. This decrease signals the onset of autumn, where the days begin to shorten more significantly as they move towards the winter months. Following September, daylight dwindles further to 10 hours in October, leading to the darker days of November and December, which see just 9 and 8 hours of daylight, respectively. This rhythm of light not only celebrates the vibrancy of summer but also prepares the community for the serene stillness of winter.
As summer transitions into autumn in Eagle River, September greets residents with a notable shift in wind patterns. With an average wind speed of 3.4 m/s (8 mph), the month marks a slight increase from the calmer months of July and August, which recorded lower averages of 2.7 m/s (6 mph) and 3.1 m/s (7 mph), respectively. This rejuvenating breeze hints at the changing seasons, setting the stage for the brisk autumn months ahead. Interestingly, September’s winds align closely with April’s 3.4 m/s, suggesting a cycle of calming and invigorating gusts throughout the year. As the landscape transforms, the invigorating September winds contribute to the beauty of Eagle River, making it an ideal time for outdoor exploration.
The weather in Eagle River changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Eagle River and find detailed weather information for every month.
September and January present strikingly different weather conditions. In September, temperatures range from a chilly minimum of 1°C (34°F) to a warm maximum of 30°C (86°F), with an average of 14°C (58°F). The month also experiences significant precipitation, totaling 98 mm (3.9 in) over about 11 days, while humidity hovers at 78%. In contrast, January is much colder, with temperatures dropping to a minimum of -30°C (-22°F) and averaging -10°C (15°F), peaking at just 5°C (41°F). Precipitation is notably lower at 35 mm (1.4 in) across 7 days, and humidity remains high at 89%. For more details on January conditions, check Eagle River weather in January.
September and February present striking contrasts in weather. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 30°C (86°F), with an average of 14°C (58°F), and precipitation is relatively high at 98 mm (3.9 in) over 11 days. The humidity sits at 78%, creating a warm and often muggy atmosphere. In contrast, February experiences much colder conditions, with temperatures dipping as low as -32°C (-25°F) and averaging -10°C (15°F), peaking at only 10°C (49°F). Precipitation decreases to 52 mm (2.0 in) over about 10 days, and humidity levels rise to 90%, resulting in a much chillier and drier winter environment. For a detailed look at what February brings, refer to the Eagle River weather in February.
September and March present significantly different weather patterns. In September, temperatures range from a pleasant 1°C (34°F) at night to a warm 30°C (86°F) during the day, with an average of 14°C (58°F). The month sees some precipitation, totaling 98 mm (3.9 in) over 11 days, and has an average humidity of 78%. In contrast, March is much colder, with temperatures dipping as low as -26°C (-14°F) and only reaching a maximum of 14°C (58°F). The average temperature hovers around -3°C (27°F), and precipitation is lower at 49 mm (1.9 in) over 8 days, accompanied by a higher humidity of 87%. For more details on March weather, you can check Eagle River weather in March.
In September, temperatures range more widely with a minimum of 1°C (34°F) and a maximum of 30°C (86°F), resulting in a comfortable average of 14°C (58°F). The month experiences a decent amount of rainfall, totaling 98 mm (3.9 in) over approximately 11 days, with humidity sitting at 78%. In contrast, April starts much colder, with temperatures dipping as low as -16°C (4°F) but can warm up to a maximum of 21°C (71°F). This month sees slightly lower precipitation at 90 mm (3.5 in) over about 13 days and exhibits higher humidity at 84%. For a deeper look at the weather in April, check out Eagle River weather in April.
When comparing the weather in September and May, both months experience a similar maximum temperature of 30°C (86°F), but their overall conditions differ significantly. September enjoys a warmer average temperature of 14°C (58°F) compared to May's average of 12°C (53°F), although May starts off with a colder minimum temperature of -4°C (26°F). In terms of precipitation, September receives slightly more rainfall at 98 mm (3.9 in) versus May's 82 mm (3.2 in), occurring over the same number of days—11. Humidity levels are quite comparable, with September at 78% and May at 77%. For more detailed information about May's weather, visit Eagle River weather in May.
When comparing the weather in September and June, we see some notable differences and similarities. September experiences a wider temperature range, with a minimum of 1°C (34°F) and a maximum of 30°C (86°F), while June has slightly warmer temperatures, ranging from a minimum of 5°C (41°F) to a maximum of 33°C (91°F). Both months share a similar level of precipitation, averaging around 99 mm (3.9 in) over approximately 11 days, but September tends to be slightly more humid at 78% compared to June's 75%. For more detailed insights on June weather, you can check Eagle River weather in June.
When comparing the weather in September to that of July, notable differences in temperature and humidity emerge. September experiences a broader temperature range, with minimums dipping to 1°C (34°F) and maximums reaching up to 30°C (86°F), while July maintains a milder minimum of 9°C (49°F) and a slightly higher maximum of 32°C (90°F). Both months see similar precipitation levels, with 98 mm (3.9 in) in September and 100 mm (3.9 in) in July, each occurring over about 11 days. However, September's humidity is marginally higher at 78%, compared to July's 74%. For more details on July's weather specifically in Eagle River, check out this link: Eagle River weather in July.
In comparing the weather of September and August, September shows a noticeable decrease in minimum temperature, dropping from 7°C (44°F) in August to 1°C (34°F), while the average temperature falls from 18°C (65°F) to 14°C (58°F). Both months reach similar maximum temperatures, with September peaking at 30°C (86°F) and August at 30°C (87°F). Additionally, September experiences slightly less precipitation at 98 mm (3.9 in) over 11 days compared to August's 114 mm (4.5 in) over 12 days. Humidity levels in September are higher at 78%, while they are lower in August at 73%. For a more detailed look at August weather patterns, check out Eagle River weather in August.
September and October present quite a contrast in weather conditions. In September, temperatures range from a minimum of 1°C (34°F) to a maximum of 30°C (86°F), with an average of 14°C (58°F), and the month typically experiences 98 mm (3.9 in) of precipitation over 11 days, accompanied by a humidity level of 78%. In contrast, October sees a noticeable drop in temperature, with minimums plummeting to -10°C (14°F) and an average of only 7°C (44°F). Although maximum temperatures reach a relatively mild 24°C (75°F), the month receives more precipitation at 117 mm (4.6 in) over 13 days, further increasing humidity to 84%. For more details on October weather in Eagle River, you can visit Eagle River weather in October.
In September, the weather is characterized by a significant range in temperature, with lows of 1°C (34°F) and highs reaching up to 30°C (86°F), making the month feel quite warm overall with an average of 14°C (58°F). The humidity sits at 78%, and the region experiences about 98 mm (3.9 in) of precipitation over 11 days. In contrast, November brings much colder temperatures, with a minimum of -17°C (2°F) and an average of -2°C (29°F), though it can still reach a mild maximum of 20°C (68°F). With a lower total precipitation of 55 mm (2.2 in) across the same number of days, November's higher humidity at 89% contributes to a chillier atmosphere. For more detailed information, you can check out the Eagle River weather in November.
In September, the weather is quite warm and variable, with temperatures ranging from a chilly 1°C (34°F) at night to a hot 30°C (86°F) during the day, accompanied by an average temperature of 14°C (58°F). With a total rainfall of 98 mm (3.9 in) over approximately 11 days, humidity sits at a moderate 78%. In contrast, December brings a significant drop in temperatures, with a minimum of -28°C (-19°F) and an average of -6°C (21°F), peaking at a mild 13°C (55°F). Precipitation is lower at 62 mm (2.4 in) spread over about 10 days, and the humidity increases to 87%. For more insights on the weather specifics in December, you can visit Eagle River weather in December.
September in Eagle River marks a transition from the warm summer days to the crispness of autumn. As the month unfolds, temperatures typically dip, inviting a cool breeze that contrasts sharply with the heat of July and August. Although some days still flirt with warmth, the evenings bring a refreshing chill, with nights often reaching near freezing. In addition, September sees increased rainfall, contributing to the rich hues of early fall foliage and creating a more humid environment. This mix of lingering warmth and the onset of cooler, wet weather makes September unique and a stunning time to experience the beauty of Eagle River. For more insights on how weather patterns evolve throughout the year, visit Eagle River Climate.