September Weather in Breckenridge, United States

Last updated: February 24, 2025

In September, Breckenridge experiences a delightful transition towards autumn, with maximum temperatures reaching a pleasant 22°C (72°F) while the average hovers around a crisp 7°C (46°F). As the month progresses, temperatures can dip to a chilly -11°C (13°F) at night, reminding visitors of the approaching winter. Precipitation totals around 43 mm (1.7 in), occurring over 9 days, contributing to an invigorating atmosphere that’s characterized by a 65% humidity level. This unique blend of fluctuating temperatures and moderate rainfall creates a vibrant backdrop for outdoor adventures and breathtaking fall foliage.

September Temperature in Breckenridge

In September, Breckenridge experiences a delightful transition as summer gives way to autumn. The temperatures begin to cool, with minimums dropping to -11°C (13°F) and averaging around 7°C (46°F), making it a refreshing time for outdoor activities. The max temperatures can still reach a comfortable 22°C (72°F), allowing for pleasant days to explore the stunning landscapes. This month marks a notable shift from the warm highs of summer, capturing the essence of change in the crisp mountain air as the leaves start to turn, setting the perfect backdrop for adventure seekers and nature lovers alike.

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

The chart illustrates September temperature patterns in Breckenridge, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec131422273546525145302013
Data source: Temperature data for Breckenridge 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 Breckenridge

In September, Breckenridge experiences a moderate transition in weather, with precipitation averaging 43 mm (1.7 in) over about 9 days. This marks a slight decrease from the summer months, aligning with the onset of autumn. While July typically boasts the highest rainfall of the year at 83 mm (3.3 in), September's totals reflect a more stable climate as the days grow shorter and cooler. Interestingly, this month ties with December for total precipitation while sitting comfortably above January and November's figures. The timing suggests that early fall showers may contribute to the region's lush landscapes and prepare it for the upcoming winter season, making September a distinctive month in Breckenridge's yearly weather pattern.

September Precipitation Trends in Breckenridge

The chart displays monthly precipitation patterns in Breckenridge, 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.
JanFebMarAprMayJunJulAugSepOctNovDec415967788150835343564143
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Breckenridge

In September, Breckenridge experiences a gradual rise in humidity level, settling at 65%. This marks a notable shift from the drier summer months, where July and August recorded their lowest humidity levels at 52% and 56%, respectively. As autumn approaches, the increased moisture in the air subtly hints at the transition to the chillier months ahead. While September's humidity is a bit higher than the summer average, it still remains lower than the winter months, which see significant spikes, peaking at 89% in December. This trend illustrates Breckenridge's characteristic seasonal ebb and flow, where humidity rises in sync with the cooling temperatures, preparing the landscape for the snowy splendor of winter.

September Average Humidity in Breckenridge

This chart illustrates the average monthly humidity levels in Breckenridge, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%76%67%58%52%56%65%76%82%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Breckenridge

As summer wanes and September arrives in Breckenridge, the UV Index remains impressive at 11, placing it firmly in the extreme exposure category with a burn time of just 10 minutes. This slight decrease from the peak values of July and August indicates that while temperatures may be starting to cool, sun protection is still crucial. The trend throughout the year shows a gradual rise from January's moderate 4 to the scorching highs during mid-summer, peaking in June at 14. Even in September, the UV levels are notably high, reminding outdoor enthusiasts to stay vigilant and protect their skin. For those planning outdoor activities, ensuring proper sun safety measures is essential. Explore more details about UV levels and stay informed at Breckenridge UV Index.

Maximum UV Index Levels in Breckenridge for September

The chart shows the monthly maximum UV Index (UVI) for Breckenridge 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.
JanFebMarAprMayJunJulAugSepOctNovDec469121314131211754
Data source: Breckenridge 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 Breckenridge

As summer gracefully transitions into autumn, September in Breckenridge continues to bask in abundant sunshine, boasting an impressive 314 hours of sunlight. This month typically sees a gentle decline from the peak summer brightness, which reaches its zenith in June and July with 382 hours each. However, September's sun-drenched days perfectly complement the changing leaves, offering a stunning backdrop for outdoor adventures. The trend of extensive sunlight continues into the fall, as October still enjoys a respectable 280 hours. With each passing month, Breckenridge's enchanting landscape transforms, reminding visitors that the beauty of the Rockies doesn't wane with summer's end but instead offers a vibrant, golden glow that makes September truly special.

Monthly Sunshine Duration in Breckenridge: September Highlighted

The September sunshine duration represents the total number of hours Breckenridge 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.
JanFebMarAprMayJunJulAugSepOctNovDec183h232h291h316h355h382h382h357h314h280h247h237h
Data source: Breckenridge September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Breckenridge During September

September marks a delightful transition into fall in Breckenridge, with a notable increase in the likelihood of sunny weather, boasting 65% chances of sunshine. This is a significant leap from the summer months, reflecting nature's gentle shift as the vibrant summer blooms yield to the warm hues of autumn. Following the peak sunny days in August, September offers a wonderful blend of sunny skies and crisp air, inviting outdoor enthusiasts to enjoy hiking, biking, and scenic vistas before the winter chill arrives. The consistent sunshine of September not only enhances the breathtaking mountain landscapes but also provides an excellent opportunity for visitors and locals alike to revel in the stunning beauty of Breckenridge at this time of year.

Percentage of Sunny Days in September in Breckenridge

The chart illustrates the percentage of sunny days in Breckenridge 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 Breckenridge experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%38%47%52%42%52%48%61%65%54%60%53%
Data source: Breckenridge September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Breckenridge in September

As September rolls into Breckenridge, daylight begins its gradual retreat, offering about 12 hours of sunlight each day. This marks a notable shift from the peak of summer, where the days stretched to a generous 14 hours. Throughout the year, daylight duration tends to wax and wane predictably; after basking in the summer's glow, September serves as a gentle reminder that autumn is approaching. The month bridges the gap between the lingering warmth of late summer and the crisp embrace of fall, making it an ideal time for outdoor adventures bathed in the soft, golden light of waning days. As daylight fades, locals and visitors alike can relish in the stunning autumn hues that Breckenridge has to offer, all while enjoying a gradual yet noticeable transition in their daily rhythms.

Average Daylight Hours in Breckenridge for September

The chart illustrates the variation in daylight duration in Breckenridge throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 44m10h 43m11h 58m13h 16m14h 21m14h 53m14h 35m13h 37m12h 23m11h 6m9h 59m9h 25m
Data source: Breckenridge daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Breckenridge

As September graces Breckenridge, the winds begin to reflect the seasonal shift, with an average speed of 2.0 m/s (4 mph). This gentle breeze arrives after the summer months, which saw a gradual decline in wind intensity, peaking in June at 2.0 m/s (5 mph) and then tapering through July to 1.8 m/s (4 mph). September's calm winds echo the serene transition into autumn, in contrast to the slightly brisker gusts experienced in November and December. As the year progresses, this trend indicates a gradual return to more invigorating winds, reminding us that change is just around the corner.

Average September Wind Speed in Breckenridge

The chart displays monthly wind speed patterns in Breckenridge, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.73.22.52.62.42.01.82.02.0 m/s2.52.82.9
Data source: Breckenridge September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Breckenridge Compares to Other Months

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

In September, the weather in Breckenridge is characterized by a milder range of temperatures, with minimums around -11°C (13°F), averaging 7°C (46°F), and maximums reaching up to 22°C (72°F). The month typically sees about 43 mm (1.7 in) of rainfall over approximately 9 days, coupled with a humidity level of 65%.

In contrast, January brings a much harsher climate, with temperatures dropping significantly. The minimum temperature plunges to -26°C (-15°F), and the average is a brisk -11°C (13°F), while maximums hover around 5°C (42°F). Precipitation remains relatively similar to September at 41 mm (1.6 in), but it falls over 10 days, and the humidity rises to a high of 88%. For a more detailed view of winter conditions, check out Breckenridge weather in January.

September and February present markedly different weather conditions. In September, temperatures range from a low of -11°C (13°F) to a comfortable high of 22°C (72°F), with an average of around 7°C (46°F). The month sees approximately 43 mm (1.7 in) of precipitation spread over 9 days, accompanied by a humidity level of 65%. In contrast, February experiences much colder temperatures, with a minimum of -28°C (-19°F) and an average temperature of -10°C (14°F), peaking at just 9°C (48°F). This month receives higher precipitation at 59 mm (2.3 in), occurring over 14 days, and features increased humidity at 87%. For more detailed insights, you can check out Breckenridge weather in February.

September and March present quite contrasting weather conditions. In September, temperatures range from a minimum of -11°C (13°F) to a pleasant maximum of 22°C (72°F), with an average of 7°C (46°F). This month experiences moderate precipitation of 43 mm (1.7 in) over about 9 days, while humidity levels sit at a comfortable 65%. In contrast, March is characterized by colder temperatures, with a minimum of -25°C (-12°F) and a maximum of only 9°C (49°F), resulting in an average of -5°C (22°F). March is also wetter, with 67 mm (2.7 in) of precipitation spread over 14 days and higher humidity at 81%. For more detailed insights on March weather, you can refer to Breckenridge weather in March.

When comparing the weather in September and April, notable differences arise in temperature and precipitation. September enjoys a milder temperature range, with lows of -11°C (13°F) and highs reaching 22°C (72°F), creating an average of 7°C (46°F). Meanwhile, April tends to be colder, with temperatures dipping as low as -21°C (-5°F) and averaging -3°C (27°F). Additionally, April experiences more precipitation, totaling 78 mm (3.1 in) over 13 days, compared to September's 43 mm (1.7 in) over 9 days. The humidity levels also reflect these differences, as April's humidity averages at 76%, slightly higher than September's 65%. For a deeper dive into the specifics of April weather, you can find more information here: Breckenridge weather in April.

When comparing the weather in September and May, several key differences emerge. September tends to offer milder conditions, with average temperatures reaching up to 7°C (46°F) and maximums of 22°C (72°F), while May generally showcases colder temperatures, averaging around 2°C (35°F) and maxing out at 17°C (63°F). Additionally, precipitation levels are notably higher in May, with about 81 mm (3.2 in) over 14 days compared to September's 43 mm (1.7 in) across 9 days. Humidity remains relatively stable, with September at 65% and May slightly higher at 66%. For more detailed insights, you can explore Breckenridge weather in May.

When comparing the weather in September and June, a few notable differences emerge. September experiences a wider temperature range, with minimums dropping to -11°C (13°F) and maximums reaching 22°C (72°F), while June has slightly milder conditions, with minimums around -9°C (15°F) and maximums peaking at 24°C (75°F). Precipitation in September is moderately lower at 43 mm (1.7 in) over about 9 days compared to June's 50 mm (2.0 in) spread over 10 days, suggesting that September is slightly drier but still relatively humid, with a humidity level of 65% compared to June's 58%. For more detailed insights on June weather, you can check this link: Breckenridge weather in June.

In comparing the weather between September and July, it’s evident that September experiences a broader temperature range, with minimums dropping to -11°C (13°F) and maximums reaching 22°C (72°F), averaging around 7°C (46°F). This contrasts with July, where temperatures are milder, ranging from a minimum of -2°C (28°F) to a maximum of 23°C (74°F), with an average of 11°C (53°F). Additionally, September sees less precipitation at 43 mm (1.7 in) over 9 days, compared to July's 83 mm (3.3 in) over 15 days. The humidity is also higher in September at 65%, while July maintains a lower level of 52%. For more detailed information on July weather, you can check out Breckenridge weather in July.

September weather in Breckenridge is characterized by cooler temperatures compared to August, with a minimum temperature of -11°C (13°F), while August sees a minimum of 0°C (32°F). Both months experience a similar maximum temperature of around 22°C (72°F), but September has a slightly lower average temperature of 7°C (46°F), compared to August's 11°C (52°F). Precipitation in September totals 43 mm (1.7 in) over 9 days, which is less than August's 53 mm (2.1 in) over 11 days. Interestingly, September also has a higher humidity level at 65%, compared to 56% in August. For more details, check Breckenridge weather in August.

September and October present a notable shift in weather conditions. In September, temperatures fluctuate between a minimum of -11°C (13°F) and a maximum of 22°C (72°F), with an average temperature of 7°C (46°F). The month sees about 43 mm (1.7 in) of precipitation spread over 9 days, accompanied by a humidity level of 65%. In contrast, October experiences much colder temperatures, with minimums plunging to -24°C (-10°F) and an average temperature of -1°C (31°F), peaking at 17°C (63°F). This month also encounters increased precipitation at 56 mm (2.2 in) over the same number of days, alongside a higher humidity level of 76%. For a deeper look into October weather specifics, check out Breckenridge weather in October.

In September, temperatures in Breckenridge tend to be milder, with average highs reaching 22°C (72°F) and lows around -11°C (13°F). The month experiences relatively moderate precipitation, totaling 43 mm (1.7 in) over about 9 days, complemented by a humidity level of 65%. In contrast, November brings a more frigid atmosphere, featuring a significantly lower average temperature of -7°C (20°F), along with maximum temperatures peaking at 10°C (50°F) and minimums dropping to -27°C (-17°F). Precipitation remains comparable at 41 mm (1.6 in) but occurs over fewer days, with the humidity rising to 82%. For a closer look at November's weather specifics, you can check Breckenridge weather in November.

In September, temperatures in Breckenridge range from a chilly -11°C (13°F) at night to a pleasant 22°C (72°F) during the day, with an average of 7°C (46°F). The month sees about 43 mm (1.7 in) of precipitation over 9 days, accompanied by a moderate humidity level of 65%. In contrast, December experiences significantly colder temperatures, with lows plunging to -29°C (-20°F) and highs reaching only 8°C (47°F), averaging -11°C (13°F). Despite similar precipitation levels of 43 mm (1.7 in), December has slightly more days of rain or snow at 10 days, and the humidity is higher at 89%. For more details on Breckenridge's winter climate, you can visit Breckenridge weather in December.

Compare Breckenridge's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Breckenridge

As September rolls into Breckenridge, the weather presents a delightful transition from the warmer summer months to the cool allure of autumn. Visitors can expect mild daytime temperatures that average around a comfortable 7°C (46°F), perfect for outdoor adventures, while nighttime can dip dramatically, often dropping to -11°C (13°F). This month typically experiences moderate precipitation, with about 43 mm over approximately 9 days, alongside a humidity level around 65%. Compared to other months, September offers a unique blend of summer-like warmth during the day and crisp fall nights, making it a prime time for both hiking and witnessing the stunning fall foliage. For a deeper dive into Breckenridge's climate nuances throughout the year, be sure to check Breckenridge Climate.