Last updated: February 24, 2025
In September, Skagway experiences a diverse climate marked by a maximum temperature of 20°C (69°F) and an average of 7°C (44°F). As the month unfolds, temperatures can dip to a chilly -7°C (20°F) at night, creating a striking contrast. Rainfall is abundant, with 162 mm (6.4 in) recorded over 18 days, contributing to the region's lush landscapes. Humidity levels soar to an astonishing 105%, enveloping Skagway in a damp mist that accentuates the vibrant autumn colors. This unique weather profile offers visitors a blend of crisp air and breathtaking scenery, perfect for adventurers and nature lovers alike.
As September unfolds in Skagway, United States, temperatures begin to shift noticeably from the warmth of summer. With a minimum of -7°C (20°F) and a maximum of 20°C (69°F), the month features an average temperature of 7°C (44°F), marking a clear transition toward cooler autumn days. This decline follows the peak summer temperatures of July and August, where the highs reached up to 75°F (24°C). As days shorten, visitors can expect crisp air and the vibrant scenery of changing leaves, making September an enchanting time for exploration. The contrast to the colder months ahead becomes evident, as the region readies itself for the frosty embrace of October.
In September, Skagway experiences a notable transition in its weather patterns, with precipitation totaling 162 mm (6.4 in) over 18 days. This slightly lower amount compared to the preceding month of August signals the beginning of fall, yet it remains significant compared to the drier summer months like July. As autumn approaches, the frequency of rain increases, setting the stage for the wetter months ahead, particularly October, which sees a sharp rise to 234 mm (9.2 in). The trend reflects Skagway's characteristic shift from summer’s milder showers to the more intense and consistent rainfall typical of the later autumn, emphasizing the region's dynamic climate.
In September, Skagway experiences a notable spike in humidity, with levels reaching 105%. This elevated moisture continues the trend set by the summer months, where July and August recorded peaks of 110% and 117%, respectively. The region's high humidity through the summer culminates in a wet and heavy atmosphere that persists into early autumn. However, as the year progresses, a gradual decline can be observed, with October bringing humidity down to 98%. This pattern highlights Skagway's unique climatic rhythm, where the transition from lush summer to the crispness of fall is marked by significant moisture levels, creating a captivating yet humid environment just before the onset of cooler months.
As summer fades and September arrives in Skagway, the UV Index experiences a gentle decline, settling at 5—a moderate level that indicates a shift from the peak sun exposure of the warmer months. This trend reflects a return to safer outdoor activities, with a burn time of 30 minutes before skin damage becomes a concern. Having enjoyed high UV levels in July and August, residents and visitors can now embrace the pleasant fall weather while remaining mindful of sun protection, especially during midday hours. For more insights and details, check out the comprehensive Skagway UV Index.
UV Risk Categories
As the summer warmth lingers into September in Skagway, visitors can still bask in 186 hours of sunshine, a substantial glow that marks a transition from the vibrant sun-soaked months of July and August. Following the peak of 288 hours in July, September's sunshine begins to taper off, yet it still outshines the chilly winter months ahead, such as October with only 103 hours and December's mere 41 hours. This gradual decline in sunlight reflects the encroaching autumn, setting the stage for stunning foliage and crisp air, while offering a vital last hurrah of bright days before the long, dark months of winter take hold.
In September, Skagway experiences a notable decline in sunny weather, with only a 7% chance of sunshine, marking one of the least sunny months of the year. This trend follows a pattern observed throughout the late summer and early fall, where the probabilities of sunny days dip significantly after the relatively brighter months of June and July. Comparatively, February and April show healthier chances at 39%, while May and August also falter with 8% and 14%, respectively. As the year progresses towards winter, the likelihood of sun diminishes, reaching a mere 5% by October. With such low probabilities, visitors to Skagway in September should prepare for a predominantly overcast climate and the potential for brisk, rainy days.
As the vibrant summer days of June and July fade into early September, Skagway experiences a gradual but noticeable decrease in daylight, with the sun shining for approximately 12 hours. This marks a shift from the peak of summer, where daylight extended to a remarkable 18 hours, to the shorter days of autumn. In August, the daylight begins to wane further, dropping to 15 hours, setting the stage for the transition into fall. Following September, daylight diminishes more rapidly, totaling just 10 hours by October. This rhythmic ebb and flow of sunlight not only illuminates the changing landscape but also reflects the natural cycle of seasons that Skagway residents embrace.
As September rolls into Skagway, the wind whispers a familiar tune, maintaining an average speed of 1.5 m/s (3 mph). This calm breeze echoes the quieter months of early winter, similar to January's gentle chill of 1.5 m/s. The winds in Skagway tend to pick up a bit during late summer, peaking at 1.8 m/s (4 mph) in August. However, September shows a slight retreat, reminding us of autumn’s soft yet crisp embrace. This steady wind pattern reflects the region's transitional nature, where summer warmth yields to cooler days ahead, creating a serene backdrop for those fortunate enough to experience its seasonal shift.
The weather in Skagway 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 Skagway and find detailed weather information for every month.
In September, the weather in Skagway is milder, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 20°C (69°F) and an average of 7°C (44°F). This month typically experiences wetter conditions, with 162 mm (6.4 in) of precipitation over 18 days, accompanied by high humidity at 105%. In contrast, January ushers in a much colder climate, with temperatures plunging to a minimum of -33°C (-27°F) and averaging -10°C (15°F), peaking at 9°C (49°F). Although January sees slightly higher precipitation at 181 mm (7.1 in) over 15 days, the humidity is notably lower at 94%. For more details about January conditions, check out Skagway weather in January.
September and February present starkly contrasting weather conditions. In September, temperatures range from a chilly -7°C (20°F) to a mild 20°C (69°F), with an average of 7°C (44°F). The month experiences significant precipitation, totaling 162 mm (6.4 in) over 18 days, creating a humid environment with humidity levels soaring to 105%. In contrast, February is much colder, with temperatures dropping to a minimum of -33°C (-28°F) and averaging -11°C (13°F), peaking at just 4°C (39°F). Additionally, February sees less precipitation, with 118 mm (4.7 in) over 12 days and a lower humidity of 90%. For more detailed insights on February weather, check out Skagway weather in February.
September and March exhibit notable differences in weather patterns. In September, temperatures range from a chilly minimum of -7°C (20°F) to a comfortable maximum of 20°C (69°F), with an average of 7°C (44°F). This month experiences significant rainfall, totaling 162 mm (6.4 in) over 18 days, accompanied by high humidity levels at 105%. In contrast, March presents a much colder climate, with temperatures dipping to a minimum of -26°C (-15°F) and only reaching a maximum of 9°C (49°F), averaging -7°C (21°F). Precipitation in March is slightly less, with 137 mm (5.4 in) of moisture also spread over 18 days, and humidity is lower at 93%. For a detailed look at weather specifics, you can refer to Skagway weather in March.
In September, Skagway experiences milder temperatures with a minimum of -7°C (20°F) and an average of 7°C (44°F), peaking at a maximum of 20°C (69°F). The month is characterized by significant precipitation, with 162 mm (6.4 in) over 18 days, resulting in a notably high humidity level of 105%. In contrast, April brings much colder conditions, recording minimum temperatures of -21°C (-5°F) and an average of -1°C (30°F), with a maximum of only 11°C (52°F). While April sees less precipitation at 102 mm (4.0 in) over 15 days, the humidity is still relatively high at 93%. To learn more about the conditions in April, check out Skagway weather in April.
In comparing the weather between September and May, we see distinct differences that highlight the transition from summer to autumn. September features a milder temperature range with a minimum of -7°C (20°F) and a maximum of 20°C (69°F), averaging around 7°C (44°F). It experiences higher precipitation at 162 mm (6.4 in) over 18 days, contributing to a significant humidity level of 105%. In contrast, May has a slightly cooler temperature profile, with a minimum of -8°C (18°F) and a maximum of 16°C (62°F), averaging 3°C (38°F). The month sees less rainfall, totaling 113 mm (4.5 in), also spread across 18 days, and a lower humidity of 92%. These differences illustrate how September tends to be warmer and wetter compared to the cooler and drier conditions of May. For a more detailed insight, check out Skagway weather in May.
When comparing the weather in September and June, notable differences arise. In June, temperatures range from a minimum of -7°C (20°F) to a maximum of 25°C (78°F), with an average of 8°C (47°F). The month experiences 124 mm (4.9 in) of precipitation over 20 days and a humidity level of 100%. Conversely, September sees slightly cooler conditions, with temperatures ranging from -7°C (20°F) to a maximum of 20°C (69°F) and an average of 7°C (44°F). The precipitation is higher in September, totaling 162 mm (6.4 in) over 18 days, accompanied by high humidity at 105%. For more detailed insights on June weather, you may refer to Skagway weather in June.
When comparing the weather in September and July, September tends to be cooler overall, with average temperatures ranging from a minimum of -7°C (20°F) to a maximum of 20°C (69°F), while July boasts milder temperatures, with averages ranging from 4°C (39°F) to 23°C (75°F). Additionally, September experiences significantly higher precipitation, totaling 162 mm (6.4 in) over 18 days, compared to July's 97 mm (3.8 in) under the same number of rainy days. Humidity levels are slightly lower in July at 110%, compared to a damp 105% in September, making July feel somewhat more comfortable, despite its warmer temperatures. For more detailed insights on July weather, you can check Skagway weather in July.
In September, the weather shows a notable drop in temperatures compared to August, with minimums reaching -7°C (20°F) and an average of 7°C (44°F), while August enjoys milder temperatures with a minimum of 1°C (35°F) and an average of 10°C (51°F). The maximum temperature in September peaks at 20°C (69°F), which is significantly lower than August's maximum of 24°C (75°F). Additionally, September experiences slightly less precipitation, recording 162 mm (6.4 in) over 18 days, compared to August's 175 mm (6.9 in) over 20 days. Humidity levels are also high in both months, with September at 105% and August at 117%. For more details, check out Skagway weather in August.
In comparing the weather between September and October, we see a significant drop in temperatures and an increase in precipitation. September experiences milder conditions with an average temperature of 7°C (44°F), while October’s average plunges to -1°C (31°F). This shift is accompanied by more days of rainfall, as October registers 22 days of precipitation compared to September's 18 days, and the total precipitation rises from 162 mm (6.4 in) in September to 234 mm (9.2 in) in October. Humidity levels also remain high, dropping slightly from 105% in September to 98% in October. For more details on October's weather, visit Skagway weather in October.
September and November present stark contrasts in weather conditions. In September, temperatures range from a minimum of -7°C (20°F) to a maximum of 20°C (69°F), with an average of 7°C (44°F). The month experiences substantial rainfall, accumulating 162 mm (6.4 in) over 18 days, paired with a high humidity level of 105%. In contrast, November sees a significant drop in temperatures, with minimums reaching -21°C (-5°F) and a maximum of only 5°C (41°F), averaging -7°C (20°F). Precipitation increases slightly to 199 mm (7.8 in) over 20 days, while humidity remains high at 96%. For more detailed information, you can check Skagway weather in November.
In September, the weather in Skagway is relatively mild, with average temperatures ranging from a minimum of -7°C (20°F) to a maximum of 20°C (69°F). The month experiences considerable precipitation, totaling 162 mm (6.4 in) over approximately 18 days, accompanied by high humidity at 105%. In contrast, December brings much colder conditions, with average temperatures dropping significantly to a minimum of -26°C (-15°F) and a maximum of only 6°C (42°F). Precipitation increases to 269 mm (10.6 in) spread over 22 days, although humidity decreases slightly to 95%. For a more detailed look at the winter weather, visit Skagway weather in December.
As September arrives in Skagway, the transition from summer to fall becomes evident in more ways than one. Temperatures begin to dip, offering a refreshing contrast to the warmer months, with average highs around 7°C (44°F) and chilling lows that can plunge to -7°C (20°F). The month is also marked by increased precipitation, with around 162 mm (6.4 in) of rain spread over approximately 18 days, contributing to the region's lush landscapes. Humidity levels soar to a remarkable 105%, giving the air a palpable density that feels quite different from the drier summer days. For a more comprehensive look at how Skagway's unique climate evolves throughout the year, check out Skagway Climate.