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October Weather in Brentwood, United States

Last updated: June 24, 2025

In October, the average temperature in Brentwood, United States hovers around 16°C (61°F). Expect the thermometer to dip as low as 5°C (42°F) or rise to a pleasant 28°C (83°F). Precipitation during this time averages 142 mm (5.6 in) across 12 days, while the air carries an average humidity of 74%.

October Temperature in Brentwood

In October in Brentwood, the average temperature is 16°C (61°F). Maximums can reach 28°C (83°F), while minimums can dip to as low as 5°C (42°F). It's an ideal time to explore Brentwood if you enjoy mild weather with the potential for some warmer days.

October Weather in Brentwood: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Brentwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brentwood, October typically has an average temperature of 16°C (61°F), with highs reaching up to 28°C (83°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec363740485768757570614941
Data source: Temperature data for Brentwood 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.

October Precipitation in Brentwood

In Brentwood in October, the total precipitation amount is 142 mm (5.6 in), occurring over the course of 12 days.

October Precipitation Trends in Brentwood

The chart displays monthly precipitation patterns in Brentwood, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Brentwood, October typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec831181071301238613010996142105138
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Brentwood

In Brentwood in October humidity is 74%. With an average temperature of 16°C (61°F), this humidity feels like a damp blanket wrapping around you, making traveling quite uncomfortable as the air feels thick and muggy, potentially leading to fatigue and a longing for a cool breeze.

October Average Humidity in Brentwood

This chart illustrates the average monthly humidity levels in Brentwood, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Brentwood is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Brentwood

In Brentwood in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Brentwood, you can refer to this Hourly UV Index in Brentwood.

Maximum UV Index Levels in Brentwood for October

The chart shows the monthly maximum UV Index (UVI) for Brentwood in October, 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 October, the maximum UV index in Brentwood typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356810101098642
Data source: Brentwood October 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 October Weather in Brentwood Compares to Other Months

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

This table compares monthly weather conditions in Brentwood, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)82 mm (3.2 inches)84%moderate
February Weather3°C (37°F)118 mm (4.6 inches)82%moderate
March Weather5°C (41°F)107 mm (4.2 inches)81%high
April Weather9°C (49°F)130 mm (5.1 inches)78%very high
May Weather14°C (58°F)123 mm (4.9 inches)69%very high
June Weather20°C (68°F)86 mm (3.4 inches)69%very high
July Weather24°C (76°F)130 mm (5.1 inches)62%very high
August Weather24°C (75°F)109 mm (4.3 inches)65%very high
September Weather21°C (70°F)96 mm (3.8 inches)68%very high
October Weather16°C (61°F)142 mm (5.6 inches)74%high
November Weather9°C (49°F)105 mm (4.1 inches)82%moderate
December Weather5°C (41°F)138 mm (5.4 inches)80%low

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