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September Weather in Brownwood, United States

Last updated: June 24, 2025

In Brownwood, United States, the average temperature in September hovers around 26°C (79°F). Expect a range where the minimum dips to 7°C (46°F) and the maximum can soar to 38°C (101°F). During this month, rainfall totals about 66 mm (2.6 in) spread across 6 days, while the average humidity remains at a comfortable 66%.

September Temperature in Brownwood

In September in Brownwood, the average temperature is 26°C (79°F). Maximum temperatures can reach 38°C (101°F), while minimums can drop as low as 7°C (46°F). It's advisable to pack for both warm days and cooler evenings while traveling during this month.

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

The chart illustrates September temperature patterns in Brownwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brownwood, September typically has an average temperature of 26°C (79°F), with highs reaching up to 38°C (101°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec474961667582868579685751
Data source: Temperature data for Brownwood 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 Brownwood

In Brownwood in September, the precipitation amount is 66 mm (2.6 in) over the course of 6 days.

September Precipitation Trends in Brownwood

The chart displays monthly precipitation patterns in Brownwood, 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. In Brownwood, September typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec3446747011451284666733239
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Brownwood

In Brownwood in September, humidity is 66%. With an average temperature of 26°C (79°F), this humidity feels like a warm, enveloping blanket, making outdoor activities invigorating yet requiring occasional breaks in the shade to stay comfortable while traveling.

September Average Humidity in Brownwood

This chart illustrates the average monthly humidity levels in Brownwood, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Brownwood is approximately 66%, offering insight into how humid the weather typically is during this month.
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 Brownwood

In Brownwood in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Brownwood.

Maximum UV Index Levels in Brownwood for September

The chart shows the monthly maximum UV Index (UVI) for Brownwood 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. In September, the maximum UV index in Brownwood typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111111121110864
Data source: Brownwood 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.

How September Weather in Brownwood Compares to Other Months

Weather in Brownwood varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Brownwood, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Brownwood, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)34 mm (1.4 inches)78%moderate
February Weather10°C (50°F)46 mm (1.8 inches)78%high
March Weather16°C (61°F)74 mm (2.9 inches)77%very high
April Weather19°C (66°F)70 mm (2.7 inches)78%extreme
May Weather24°C (75°F)114 mm (4.5 inches)82%extreme
June Weather28°C (82°F)51 mm (2.0 inches)78%extreme
July Weather30°C (86°F)28 mm (1.1 inches)69%extreme
August Weather29°C (85°F)46 mm (1.8 inches)63%extreme
September Weather26°C (79°F)66 mm (2.6 inches)66%very high
October Weather20°C (68°F)73 mm (2.9 inches)73%very high
November Weather14°C (57°F)32 mm (1.3 inches)84%high
December Weather11°C (52°F)39 mm (1.5 inches)87%moderate

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