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October Weather in Brookhaven, United States

Last updated: June 24, 2025

In October, the average temperature in Brookhaven, United States is a mild 14°C (58°F). However, be prepared for a wide range, as temperatures can dip to a chilly -1°C (30°F) or soar to a warm 32°C (90°F). Expect 117 mm (4.6 in) of precipitation over 13 days, contributing to an average humidity of 81%.

October Temperature in Brookhaven

In October in Brookhaven, the average temperature is 14°C (58°F), with maximums reaching 32°C (90°F) and minimums dipping as low as -1°C (30°F). It's advisable to pack clothing for both warm days and chilly nights when traveling during this month.

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

The chart illustrates October temperature patterns in Brookhaven, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brookhaven, October typically has an average temperature of 14°C (58°F), with highs reaching up to 32°C (90°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec333743526369747267574338
Data source: Temperature data for Brookhaven 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 Brookhaven

In Brookhaven in October, the total precipitation amount is 117 mm (4.6 in) spread over 13 days.

October Precipitation Trends in Brookhaven

The chart displays monthly precipitation patterns in Brookhaven, 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 Brookhaven, October typically receives around 117 mm (4.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec9315011814515616113011711411790130
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Brookhaven

In Brookhaven in October, humidity is 81%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making outdoor adventures sticky and challenging, while also providing a lush, vibrant atmosphere perfect for exploring.

October Average Humidity in Brookhaven

This chart illustrates the average monthly humidity levels in Brookhaven, 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 Brookhaven is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%88%87%82%84%82%73%74%81%89%86%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Brookhaven

In Brookhaven in October, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Brookhaven.

Maximum UV Index Levels in Brookhaven for October

The chart shows the monthly maximum UV Index (UVI) for Brookhaven 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 Brookhaven typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108753
Data source: Brookhaven 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 Brookhaven Compares to Other Months

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

This table compares monthly weather conditions in Brookhaven, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)93 mm (3.7 inches)88%moderate
February Weather3°C (38°F)150 mm (5.9 inches)88%moderate
March Weather6°C (44°F)118 mm (4.7 inches)88%high
April Weather11°C (53°F)145 mm (5.7 inches)86%very high
May Weather17°C (63°F)156 mm (6.1 inches)82%very high
June Weather21°C (70°F)161 mm (6.3 inches)84%very high
July Weather23°C (74°F)130 mm (5.1 inches)82%very high
August Weather22°C (72°F)117 mm (4.6 inches)73%very high
September Weather20°C (68°F)114 mm (4.5 inches)73%very high
October Weather14°C (58°F)117 mm (4.6 inches)81%high
November Weather6°C (43°F)90 mm (3.5 inches)89%moderate
December Weather3°C (38°F)130 mm (5.1 inches)86%moderate

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