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October Weather in Brilliant, United States

Last updated: June 24, 2025

In October, the average temperature in Brilliant, United States hovers around 19°C (66°F), but you may experience temperature extremes ranging from a cool 2°C (36°F) to a sizzling 37°C (99°F). Expect about 111 mm (4.4 in) of rainfall over 9 days, contributing to an average humidity of 73%. Whether you're exploring or relaxing, be prepared for the unique climate!

October Temperature in Brilliant

In October, in Brilliant, the average temperature is 19°C (66°F). Maximum temperatures can reach as high as 37°C (99°F), while minimums can drop to as low as 2°C (36°F). This diverse climate makes Brilliant an ideal destination for travelers looking to experience both warmth and the potential for cooler evenings.

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

The chart illustrates October temperature patterns in Brilliant, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Brilliant, October typically has an average temperature of 19°C (66°F), with highs reaching up to 37°C (99°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec455057627277808076665248
Data source: Temperature data for Brilliant 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 Brilliant

In Brilliant in October, the precipitation amount is 111 mm (4.4 in) over the course of 9 days.

October Precipitation Trends in Brilliant

The chart displays monthly precipitation patterns in Brilliant, 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 Brilliant, October typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec1221961751711221441121269811173155
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Brilliant

In Brilliant in October humidity is 73%. With an average temperature of 19°C (66°F), this humidity feels like a warm embrace, making travel enjoyable yet slightly sticky, as you find yourself seeking shade and refreshing drinks while exploring.

October Average Humidity in Brilliant

This chart illustrates the average monthly humidity levels in Brilliant, 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 Brilliant is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%88%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Brilliant

In Brilliant 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 Brilliant.

Maximum UV Index Levels in Brilliant for October

The chart shows the monthly maximum UV Index (UVI) for Brilliant 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 Brilliant typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119754
Data source: Brilliant 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 Brilliant Compares to Other Months

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

This table compares monthly weather conditions in Brilliant, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (45°F)121 mm (4.8 inches)85%moderate
February Weather10°C (50°F)195 mm (7.7 inches)84%high
March Weather14°C (57°F)175 mm (6.9 inches)82%very high
April Weather17°C (62°F)171 mm (6.7 inches)82%very high
May Weather22°C (72°F)122 mm (4.8 inches)82%extreme
June Weather25°C (77°F)144 mm (5.7 inches)79%extreme
July Weather27°C (80°F)112 mm (4.4 inches)82%extreme
August Weather26°C (80°F)126 mm (5.0 inches)77%extreme
September Weather24°C (76°F)98 mm (3.9 inches)74%very high
October Weather19°C (66°F)111 mm (4.4 inches)73%high
November Weather11°C (52°F)73 mm (2.9 inches)85%moderate
December Weather9°C (49°F)155 mm (6.1 inches)88%moderate

Compare Brilliant's Climate with Cities Worldwide