September Weather in Barton Creek, United States

Last updated: February 24, 2025

In September, Barton Creek, United States, experiences a warm and occasionally humid climate, with temperatures reaching a maximum of 38°C (101°F) and averaging around 27°C (80°F). The nights provide a cooler respite, dipping to a minimum of 11°C (52°F). This month sees 113 mm (4.5 inches) of precipitation spread over 11 days, creating a dynamic interplay between warmth and wetness. With an average humidity of 66%, residents and visitors can expect a blend of steamy days and refreshing showers, making September a unique time in Barton Creek.

September Temperature in Barton Creek

As summer transitions to fall in Barton Creek, September brings a pleasant change in temperatures. With minimums averaging 11°C (52°F) and maximums reaching up to 38°C (101°F), the month showcases warm yet comfortable days. The average temperature of 27°C (80°F) creates an inviting atmosphere, perfect for outdoor activities and enjoying the natural beauty of the region. This shift marks a gradual cooling trend from the intense heat of July and August, which boast maximums over 40°C (104°F). Overall, September acts as a bridge to cooler months, embodying a blend of summer's warmth while paving the way for the crispness of autumn.

September Weather in Barton Creek: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Barton Creek, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec525364697782858680706055
Data source: Temperature data for Barton Creek 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 Barton Creek

In September, Barton Creek experiences a significant transition towards autumn, marked by 113 mm (4.5 in) of precipitation spread across 11 days. This volume is nearly on par with the summer's hefty totals, such as August's 118 mm (4.6 in), suggesting an ongoing pattern of substantial rainfall as the season changes. With September typically yielding more rainfall than both June and July, it highlights the area's unique climatic rhythm. The region's lush landscapes benefit from this increase, with verdant foliage and flourishing ecosystems as a prominent result. As the month closes, one can sense the shifting climate, foreshadowing cooler days ahead while nurturing the vibrant natural beauty characteristic of Barton Creek.

September Precipitation Trends in Barton Creek

The chart displays monthly precipitation patterns in Barton Creek, 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.
JanFebMarAprMayJunJulAugSepOctNovDec495870901559871118113955278
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Barton Creek

In September, Barton Creek experiences a noticeable dip in humidity, with levels averaging around 66%. This shift marks a continuation of the downward trend initiated in the summer months, where humidity peaked at 82% in May before gradually declining. As the region transitions from the sweltering heat of August, which recorded the lowest humidity at 63%, September brings a sense of relief and a hint of crispness in the air. This gradual decrease sets the stage for the more humid months ahead, particularly as fall approaches and November swings in with a significantly higher 84%. Overall, September serves as a pivotal month, bridging the gap between summer's lingering warmth and the forthcoming wetter fall season.

September Average Humidity in Barton Creek

This chart illustrates the average monthly humidity levels in Barton Creek, 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.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Barton Creek

In September, Barton Creek experiences a UV Index of 10, indicating a very high risk of harm from unprotected sun exposure. This marks a slight decrease from the peak summer months, where the index soared to 12 in both June and July, but remains significantly higher than the winter months' moderate levels. As the burn time extends back to 15 minutes, it's crucial for residents and visitors alike to stay vigilant and prioritize sun protection during outdoor activities. With a transition into fall, the UV Index begins to gradually decline; however, September still calls for awareness and caution. For more detailed information on the UV Index trends throughout the year, check out Barton Creek UV Index.

Maximum UV Index Levels in Barton Creek for September

The chart shows the monthly maximum UV Index (UVI) for Barton Creek 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.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121110965
Data source: Barton Creek 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 Barton Creek

In Barton Creek, September shines brightly with an impressive 276 hours of sunshine, marking it as a vibrant transition from the summer blaze of July and August, which boast the peak sunlight hours at 350 and 328, respectively. This lively month reflects the tail end of the sun-soaked season, where longer daylight seamlessly shifts into the cooler embrace of autumn. Notably, September's hours of sunshine still outshine earlier months like January and February—both basking in fewer than 180 hours—illustrating a clear upward trend in daylight as the year progresses. As we approach October, the days gradually shorten, but September holds onto a delightful brightness that invites both adventure and relaxation in the warm Texas sun.

Monthly Sunshine Duration in Barton Creek: September Highlighted

The September sunshine duration represents the total number of hours Barton Creek 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.
JanFebMarAprMayJunJulAugSepOctNovDec173h166h231h262h282h332h350h328h276h271h234h226h
Data source: Barton Creek September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Barton Creek During September

In Barton Creek, September stands out as a beacon of sunshine with a 59% chance of clear skies, marking one of the highest probabilities for sunny weather in the year. This trend showcases a notable rebound from the summer months, where the likelihood of sunshine dips to the lower 30s. As the warmth of summer gives way to the early hints of fall, September invites residents and visitors alike to relish the outdoors with more favorable weather conditions. Interestingly, October mirrors this sunny disposition, maintaining a 54% chance, but the vibrancy of September's sunshine heralds the season's transition, making it an ideal time for outdoor activities and exploration in this picturesque region.

Percentage of Sunny Days in September in Barton Creek

The chart illustrates the percentage of sunny days in Barton Creek 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 Barton Creek experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec58%44%51%41%29%42%33%37%59%54%59%39%
Data source: Barton Creek September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Barton Creek in September

As September rolls in, Barton Creek enjoys a comfortable 12 hours of daylight, marking a gentle transition from the long, sun-soaked days of summer. After peaking at 14 hours in June, daylight begins to wane, with a gradual decline that mirrors the shift in seasons. This decrease continues into October, where daylight slips to 11 hours, hinting at the arrival of autumn. The consistency in daylight duration during the spring and early summer months creates a warm, welcoming environment, while September serves as a reminder that the crisp fall days are just around the corner.

Average Daylight Hours in Barton Creek for September

The chart illustrates the variation in daylight duration in Barton Creek throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 26m11h 7m12h12h 55m13h 40m14h 2m13h 50m13h 10m12h 17m11h 23m10h 36m10h 13m
Data source: Barton Creek daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Barton Creek

As September rolls in, the winds in Barton Creek begin to show a noticeable decline in speed, averaging 2.7 m/s (6 mph). This pattern reflects a broader trend of diminishing winds during the summer months, with July and August experiencing the calmest breezes of the year. However, as the season transitions into fall, there's a gentle uptick in wind speeds expected in the following months, with October and November poised to offer slightly brisker air at 3.2 m/s (7 mph) and 3.3 m/s (7 mph), respectively. Overall, September's quieter winds invite a serene atmosphere, perfect for leisurely outdoor activities as the heat of summer recedes.

Average September Wind Speed in Barton Creek

The chart displays monthly wind speed patterns in Barton Creek, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.54.14.34.13.72.92.62.82.7 m/s3.23.33.6
Data source: Barton Creek September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Barton Creek Compares to Other Months

The weather in Barton Creek 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 Barton Creek and find detailed weather information for every month.

September and January present a striking contrast in weather patterns. September typically boasts warmer temperatures, with average highs reaching around 27°C (80°F) and peaks that can soar up to 38°C (101°F), while January experiences much cooler conditions, averaging only 11°C (52°F) and dropping to a chilly minimum of -8°C (17°F). In terms of precipitation, September is considerably wetter, with 113 mm (4.5 in) falling over 11 days, compared to January’s 49 mm (1.9 in) over just 6 days. This seasonal shift is also reflected in humidity levels, which are slightly higher in January at 78%, compared to September's 66%. For more detailed insights on January weather, visit Barton Creek weather in January.

September and February present contrasting weather patterns. In September, temperatures soar with a minimum of 11°C (52°F) and an average of 27°C (80°F), peaking at 38°C (101°F). The month experiences significant rainfall, totaling 113 mm (4.5 in) over 11 days, while humidity hovers around 66%. In stark contrast, February sees much colder conditions with a minimum of -15°C (5°F) and an average of 12°C (54°F), reaching a maximum of 31°C (88°F). Precipitation is lighter at 58 mm (2.3 in), occurring over 9 days, coupled with a higher humidity level of 78%. For more specific details, you can check Barton Creek weather in February.

When comparing the weather in September and March, we see significant differences in temperature and humidity. September boasts much warmer average temperatures, ranging from a minimum of 11°C (52°F) to a maximum of 38°C (101°F), while March presents a cooler range with temperatures dipping as low as -3°C (26°F) and reaching a maximum of 33°C (91°F). Additionally, September experiences higher rainfall, with 113 mm (4.5 in) spread over 11 days, compared to March's 69 mm (2.7 in) over just 10 days. Interestingly, while March is cooler, it has slightly higher humidity at 77%, contrasting with September's 66%. For a detailed look at March weather, check out Barton Creek weather in March.

September and April present distinctly different weather conditions. In September, temperatures range from a minimum of 11°C (52°F) to a scorching maximum of 38°C (101°F), with an average temperature of 27°C (80°F). The month sees significant rainfall, with 113 mm (4.5 in) of precipitation over approximately 11 days, contributing to a humidity level of 66%.

In contrast, April offers milder temperatures, with a minimum of 4°C (39°F) and a maximum of 35°C (96°F), averaging at 20°C (69°F). This month experiences less rain, totaling 90 mm (3.5 in) spread over about 9 days, accompanied by a higher humidity level of 78%.

For more specific details on April weather, you can check Barton Creek weather in April.

When comparing the weather in September and May, we observe that both months start with a minimum temperature around 11°C (52°F), but September tends to be warmer overall with an average temperature of 27°C (80°F) compared to May's 25°C (77°F). The maximum temperatures are also slightly higher in September, peaking at 38°C (101°F) versus May's 37°C (99°F). However, May experiences significantly more rainfall, with 155 mm (6.1 in) over 13 days, compared to September's 113 mm (4.5 in) over 11 days. Additionally, May has higher humidity levels at 82%, while September's humidity is a bit lower at 66%. For more details about May weather in the area, you can visit Barton Creek weather in May.

In comparing the weather between September and June, we see some notable differences. September experiences a wider temperature range, with a minimum of 11°C (52°F) and an average of 27°C (80°F), while June has a milder minimum of 18°C (64°F) and an average of 28°C (82°F). Both months can reach maximum temperatures of 38°C (101°F), but September typically has higher humidity at 66% compared to June's 78%. Additionally, September receives slightly more precipitation, totaling 113 mm (4.5 in) over 11 days, while June has 98 mm (3.8 in) over 10 days. For a more detailed look at June weather, you can visit Barton Creek weather in June.

When comparing the weather in September to that of July, September tends to have a wider range of temperatures, with a minimum of 11°C (52°F) and a maximum of 38°C (101°F), resulting in an average of 27°C (80°F). In contrast, July enjoys slightly warmer conditions, with a minimum temperature of 17°C (64°F) and a peak at 42°C (108°F), averaging 29°C (85°F). While September experiences more precipitation at 113 mm (4.5 in) over 11 days, July has less rainfall totaling 71 mm (2.8 in) over 8 days. Interestingly, humidity levels are quite comparable, with September at 66% and July slightly higher at 69%. For more specifics on July conditions, you can check out Barton Creek weather in July.

In comparing the weather of September to August, September tends to be slightly cooler with a minimum temperature of 11°C (52°F) compared to August's warmer minimum of 20°C (68°F). While the average temperature in September is 27°C (80°F), August remains hotter with an average of 30°C (86°F). Additionally, September experiences more variability in its maximum temperatures, reaching up to 38°C (101°F), whereas August can soar higher with a maximum of 41°C (105°F). Precipitation levels are comparable, with September recording 113 mm (4.5 in) over 11 days, while August saw 118 mm (4.6 in) over just 7 days, contributing to slightly higher humidity in September at 66% versus August's 63%. For more detailed information on August weather, visit Barton Creek weather in August.

September weather is marked by significantly warmer temperatures, with nighttime lows around 11°C (52°F) and average highs reaching as high as 38°C (101°F). This month also experiences more frequent precipitation, with rain occurring on 11 days and a total of 113 mm (4.5 in) falling, alongside a humidity level of 66%. In contrast, October sees a noticeable drop in temperature, featuring minimums of 3°C (37°F) and average highs of 36°C (97°F). The amount of precipitation decreases to 95 mm (3.7 in) over 9 days, while humidity increases slightly to 73%. For a closer look at what to expect, check out Barton Creek weather in October.

September typically features warm temperatures, with a significant daily range from a cool 11°C (52°F) at night to a scorching 38°C (101°F) during the day. The month sees an average temperature of 27°C (80°F) and considerable rainfall, averaging 113 mm (4.5 in) over about 11 days, alongside a humidity level of 66%. In contrast, November brings much cooler conditions, where nighttime temperatures can dip to -3°C (26°F) and daytime highs reach a pleasant 30°C (86°F). The average temperature is considerably lower at 15°C (60°F), with reduced precipitation totaling 52 mm (2.0 in) over just 6 days, and humidity rises to 84%. For a detailed overview, check out Barton Creek weather in November.

In September, the weather features warm temperatures, with a minimum of 11°C (52°F) and an average of 27°C (80°F), peaking at a scorching 38°C (101°F). The month also experiences significant rainfall, accumulating 113 mm (4.5 inches) over approximately 11 days, contributing to a humidity level of 66%. In contrast, December brings a cooler climate, with temperatures ranging from a minimum of -3°C (27°F) to an average of 13°C (55°F) and a maximum of 29°C (84°F). Precipitation decreases to 78 mm (3.1 inches) over just 6 days, while humidity rises to 87%. For more details on December's weather, you can explore Barton Creek weather in December.

Compare Barton Creek's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Barton Creek

As September unfolds in Barton Creek, the weather showcases a unique blend of summer's warmth and the promising hints of autumn. With average temperatures settling comfortably around 27°C (80°F), this month stands out with its occasional high peaks and refreshing cool nights. The increased humidity and frequent precipitation—with rain gracing nearly half the days of the month—distinguish September from the typically drier summer months, creating a lush, vibrant landscape. For a more in-depth look at how this month compares to others throughout the year, explore the full details at Barton Creek Climate.