September Weather in Talkeetna, United States

Last updated: February 24, 2025

September in Talkeetna, United States offers a captivating transition from summer to fall, characterized by a maximum temperature reaching 20°C (68°F) and a refreshing average of 9°C (48°F). As the season shifts, temperatures can dip to a minimum of -6°C (21°F), highlighting the distinct chill in the air. Visitors can expect a rainy atmosphere, with 111 mm (4.4 in) of precipitation spread over 17 days, resulting in a high humidity level of 94%. This unique blend of weather conditions creates an enchanting environment, perfect for experiencing the beauty of nature as it prepares for winter.

September Temperature in Talkeetna

As September rolls into Talkeetna, the landscape begins to transition from the warm embrace of summer to the crisp onset of autumn. The average temperature settles at 9°C (48°F), marking a noticeable drop from the balmy days of August. Nighttime temperatures dip to a chilly -6°C (21°F), signaling that winter is just around the corner. Daytime highs can still reach a comfortable 20°C (68°F), allowing for those lingering outdoor activities amid the stunning fall foliage. This month serves as a bridge between seasons, showcasing a unique blend of lingering warmth and the invigorating coolness of early fall. As the leaves change and temperatures continue to drop, Talkeetna offers a captivating glimpse of nature's transition.

September Weather in Talkeetna: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Talkeetna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec101419344756605648361916
Data source: Temperature data for Talkeetna generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Talkeetna

September in Talkeetna marks a significant transition in precipitation patterns, with an impressive 111 mm (4.4 in) of rainfall over 17 days. This increase follows August's already considerable 130 mm, hinting at the onset of autumn and a shift toward wetter weather. As the summer months recede, September's precipitation remains high, comparable to that of October, which sees just a slight decrease to 110 mm (4.3 in) with 15 rainy days. Overall, this month serves as a notable bridge, solidifying Talkeetna's reputation for lush landscapes and ensuring that local waterways remain vibrant as they head into the cooler months.

September Precipitation Trends in Talkeetna

The chart displays monthly precipitation patterns in Talkeetna, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec305246479280871301111106471
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Talkeetna

In September, Talkeetna experiences a notable rise in humidity, reaching an average of 94%. This subtle increase follows a summer characterized by moderately humid conditions, particularly in July and August, where levels hovered around 90% and 92%, respectively. As the month progresses, it becomes clear that the crispness of autumn is approaching, yet the lingering warmth keeps the air quite moist. This trend continues into October and November, when humidity levels peak at an impressive 98% and 100%. Overall, the gradual ebb and flow of humidity throughout the year paints a vivid picture of Talkeetna's diverse climate, oscillating between wet and dry as the seasons transition.

September Average Humidity in Talkeetna

This chart illustrates the average monthly humidity levels in Talkeetna, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec96%92%90%87%81%82%90%92%94%98%100%98%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Talkeetna

As summer transitions to autumn in Talkeetna, September marks a slight decline in the UV Index, which hovers at 4, categorizing it as moderate. This means that while you can still enjoy outdoor activities, sun protection is advisable with a burn time of 30 minutes. This trend reflects a gradual reduction in UV levels from the summer months, where indices peaked at 6. In contrast to the earlier part of the year, where January through February boasted a low index of 1, September's moderate level indicates the lingering effects of the sunnier days. For those planning outdoor adventures in Talkeetna this month, it's essential to stay aware of UV exposure to safely enjoy the beautiful autumn scenery. For more detailed insights on UV levels, visit Talkeetna UV Index.

Maximum UV Index Levels in Talkeetna for September

The chart shows the monthly maximum UV Index (UVI) for Talkeetna in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec113466654211
Data source: Talkeetna September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Talkeetna

As the summer fades, September in Talkeetna ushers in a gentle transition with 174 hours of sunshine, marking a notable decline from the vibrant warmth of August’s 248 hours. This decrease sets the stage for the approaching autumn, as the sun's embrace gradually wanes leading into October's 125 hours. The trend is a vivid reminder of the Alaskan seasons, where daylight dances dramatically, peaking mid-year and then contracting sharply into the winter months. With September's golden light casting a soft glow over the landscape, residents and visitors alike cherish the lingering beauty before the early chill sets in.

Monthly Sunshine Duration in Talkeetna: September Highlighted

The September sunshine duration represents the total number of hours Talkeetna experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec53h121h209h275h306h316h310h248h174h125h92h38h
Data source: Talkeetna September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Talkeetna During September

In Talkeetna, United States, September brings a 32% chance of sunny weather, which is slightly below the yearly average yet a marked improvement from the summer months. Following a trend of dwindling sunshine during the peak season—where July showcases the lowest chance at 18%—September hints at a gradual transition towards clearer skies, but still remains overshadowed by the impending autumn. Interestingly, while September's sun probability is modest, it outperforms the dismal July and August figures, suggesting a seasonal shift that leaves room for optimism as the long days of summer give way to the cooler, crisp air of fall.

Percentage of Sunny Days in September in Talkeetna

The chart illustrates the percentage of sunny days in Talkeetna throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Talkeetna experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec34%39%39%53%28%28%18%27%33%18%49%28%
Data source: Talkeetna September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Talkeetna in September

As September unfolds in Talkeetna, the waning days of summer linger just enough to provide a welcoming 12 hours of daylight. This month marks a noticeable shift from the longer days of summer, peaking in June with an impressive 19 hours of sunlight, to the shorter intervals that herald the colder months. With each passing day, the daylight steadily diminishes, transitioning from 15 hours in August to just 9 hours come October. This gradual decrease sets the stage for the enchanting Alaskan autumn, as the vibrant hues of fall begin to emerge, all while the sun starts its early descent. The rhythm of day and night here is a poignant reminder of nature’s relentless cycle, offering both beauty and a sense of anticipation for the upcoming seasonal changes.

Average Daylight Hours in Talkeetna for September

The chart illustrates the variation in daylight duration in Talkeetna throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 10m8h 53m11h 53m14h 57m17h 53m19h 42m18h 38m15h 50m12h 49m9h 48m6h 54m5h 9m
Data source: Talkeetna daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Talkeetna

In September, Talkeetna experiences a mild and gentle breeze, with average wind speeds hovering around 1.9 m/s (4 mph). This slight uptick mirrors the calm character of late summer transitioning into the early fall, where the winds remain consistently soft. Observing the trends throughout the year, it's interesting to note that wind speeds have gradually declined from the brisk beginnings of winter, reaching their lowest during the warmer months of May through August. The patterns indicate that as the season shifts, the winds tend to pick up slightly again in November, suggesting a return to the cooler and more dynamic conditions typical of this picturesque Alaskan town. Overall, September’s winds create a serene backdrop, perfect for enjoying the breathtaking autumn landscape.

Average September Wind Speed in Talkeetna

The chart displays monthly wind speed patterns in Talkeetna, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.42.12.11.81.71.71.91.9 m/s1.82.22.4
Data source: Talkeetna September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Talkeetna Compares to Other Months

The weather in Talkeetna 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 Talkeetna and find detailed weather information for every month.

September weather in Talkeetna is noticeably milder, with average temperatures ranging from a minimum of -6°C (21°F) to a maximum of 20°C (68°F) and a total precipitation of 111 mm (4.4 in) over 17 days. In contrast, January brings frigid conditions, with temperatures plummeting to a minimum of -33°C (-26°F) and a maximum of 3°C (38°F). The winter month also experiences significantly less precipitation, totaling only 30 mm (1.2 in) across 6 days. While September has high humidity at 94%, January's humidity remains slightly higher at 96%, reflecting the cold air's capacity to hold moisture. For a detailed look at January's climate, check out Talkeetna weather in January.

When comparing the weather in September and February, it's clear that February is significantly colder. In September, temperatures range from a minimum of -6°C (21°F) to a maximum of 20°C (68°F), with an average of 9°C (48°F). This month experiences greater precipitation, totaling 111 mm (4.4 in) over 17 days, along with high humidity levels at 94%. In contrast, February sees much harsher conditions, with temperatures plummeting to a minimum of -27°C (-16°F) and an average of -10°C (14°F). Precipitation in February is lower at 52 mm (2.0 in) over just 10 days, and humidity is slightly less at 92%. For a deeper look into February's weather, you can visit Talkeetna weather in February.

In comparing the weather between September and March, September presents a milder climate with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 20°C (68°F), offering an average of 9°C (48°F). In contrast, March experiences much colder conditions, with temperatures dropping as low as -26°C (-15°F) and averaging -7°C (20°F) during the day, reaching a maximum of only 9°C (48°F). Precipitation is higher in September at 111 mm (4.4 in) over 17 days, compared to March's 46 mm (1.8 in) over just 9 days. Humidity levels are slightly elevated in September at 94%, while March maintains a lower humidity level of 90%. This stark seasonal shift highlights a transition from the chill of winter to a fresher, albeit wetter, fall climate. For more detailed information, you can check Talkeetna weather in March.

In comparing the weather of September and April, we see notable differences in temperature and precipitation patterns. September offers milder temperatures, with an average of 9°C (48°F) and a maximum of 20°C (68°F), while April is considerably cooler, featuring an average temperature of only 1°C (34°F) and a maximum of 16°C (62°F). Additionally, September experiences higher precipitation, totaling 111 mm (4.4 in) over 17 days, compared to April's 47 mm (1.9 in) across 10 days. Humidity is also slightly higher in September at 94%, while April's humidity sits at 87%. For more specific details about April weather, you can visit Talkeetna weather in April.

In comparing the weather of September and May, we find that both months exhibit similar average temperatures, hovering around 9°C (48°F). However, September experiences a wider range, with minimum temperatures dipping to -6°C (21°F) and maximums reaching 20°C (68°F), while May shows slightly milder conditions with a minimum of -4°C (25°F) and a maximum of 23°C (73°F). Precipitation levels are also different; September sees 111 mm (4.4 in) over 17 days, whereas May has less rain at 92 mm (3.6 in) but across 20 days. Additionally, September's humidity is significantly higher at 94%, compared to May's 81%. For more detailed insights into May weather specifically, you can check Talkeetna weather in May.

When comparing the weather in September and June, we see notable differences in both temperature and precipitation. September's temperatures range from a minimum of -6°C (21°F) to a maximum of 20°C (68°F), with an average of 9°C (48°F), making it considerably cooler than June, which enjoys milder temperatures from 3°C (38°F) to 28°C (83°F) and an average of 13°C (56°F). While both months receive around 17 days of precipitation, September sees a higher rainfall total of 111 mm (4.4 in) compared to June's 80 mm (3.1 in). Additionally, September's humidity is notably higher at 94%, compared to June's 82%, resulting in a much more damp and chilly atmosphere as summer transitions to fall. For a closer look at the June climate, you can check Talkeetna weather in June.

In comparing the weather between September and July, September experiences significantly cooler temperatures, with a minimum of -6°C (21°F) and an average of 9°C (48°F), while July boasts milder conditions with a minimum of 6°C (44°F) and an average of 16°C (60°F). July also enjoys warmer maximum temperatures, reaching up to 30°C (86°F), in contrast to September’s maximum of 20°C (68°F). Additionally, September is notable for its higher precipitation levels at 111 mm (4.4 in) over 17 days, compared to July’s 87 mm (3.4 in) over 15 days. Humidity levels are slightly higher in September at 94%, compared to July’s 90%. For a more detailed look at July weather, you can visit Talkeetna weather in July.

In comparing the weather of September and August, we see noticeable shifts in temperature and precipitation. September experiences a significant drop in average temperature, with a range from a minimum of -6°C (21°F) to a maximum of 20°C (68°F), whereas August tends to be milder, with temperatures varying from a minimum of 3°C (37°F) to a maximum of 25°C (77°F). Additionally, September sees increased precipitation levels, totaling 111 mm (4.4 in) across 17 days, while August records slightly more rain at 130 mm (5.1 in) over 16 days. Humidity levels are also marginally higher in September at 94%, compared to 92% in August. For a closer look at August’s weather specifics, check out Talkeetna weather in August.

In September, the weather is generally milder with an average temperature of 9°C (48°F) and maximum highs reaching 20°C (68°F). However, it tends to be quite humid at 94%, and precipitation occurs on 17 days, totaling 111 mm (4.4 in). Come October, temperatures drop significantly, with averages falling to 2°C (36°F) and maximums at 14°C (58°F). The minimum temperature also dips to -13°C (9°F), reflecting more severe conditions. While precipitation slightly decreases to 110 mm (4.3 in) over 15 days, the humidity rises to 98%. For a more detailed look at October weather, you can visit Talkeetna weather in October.

September and November present contrasting weather conditions. In September, temperatures range from a minimum of -6°C (21°F) to a maximum of 20°C (68°F), with an average of 9°C (48°F). The month sees significant precipitation, totaling 111 mm (4.4 in) over 17 days, accompanied by high humidity at 94%. In stark contrast, November experiences much colder weather, with temperatures dropping to a minimum of -27°C (-17°F) and only reaching a maximum of 5°C (41°F), giving an average of -7°C (19°F). Precipitation decreases to 64 mm (2.5 in) over just 9 days, while humidity reaches a full 100%. For more details on the weather in November, visit Talkeetna weather in November.

When comparing the weather in September and December, notable differences emerge. September presents a milder climate, with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 20°C (68°F) and an average of 9°C (48°F). The month experiences significant precipitation of 111 mm (4.4 in) over 17 days, accompanied by high humidity of 94%. In contrast, December brings much colder conditions, with temperatures plummeting to a minimum of -27°C (-16°F) and only reaching a maximum of 6°C (43°F), averaging -9°C (16°F). Precipitation in December is less, totaling 71 mm (2.8 in) over 15 days, but the humidity rises to 98%. For a more detailed look at December weather, check out Talkeetna weather in December.

Compare Talkeetna's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Talkeetna

As September unfolds in Talkeetna, the weather takes a noticeable shift, marking the transition into autumn. With temperatures averaging a cool 9°C (48°F), the month feels markedly brisk compared to the lingering warmth of summer. The increase in precipitation, with 17 rainy days contributing to a total of 111 mm (4.4 in), adds to the chilly atmosphere, making it the wettest month thus far. Additionally, the high humidity at 94% creates a feeling of dampness that lingers in the air. This blend of cool temperatures and frequent rain sets September apart from the sunnier, milder summer months, inviting residents and visitors alike to embrace the stunning autumn foliage and prepare for the cooler days ahead. For more insights on weather patterns throughout the year, visit Talkeetna Climate.