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September Weather in Briar, United States

Last updated: June 24, 2025

In Briar, United States, the average temperature in September hovers around 26°C (79°F). Expect a cool minimum of 10°C (50°F) and a sizzling maximum of 38°C (100°F). During this time, you'll also experience approximately 84 mm (3.3 in) of precipitation spread over 7 days, with an average humidity level of 64%.

September Temperature in Briar

In September in Briar, the average temperature is 26°C (79°F). The maximum can reach 38°C (100°F) and the minimum can be as low as 10°C (50°F). This makes Briar a great destination for travelers seeking warm weather during the day while still being prepared for cooler evenings.

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

The chart illustrates September temperature patterns in Briar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Briar, September typically has an average temperature of 26°C (79°F), with highs reaching up to 38°C (100°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec464860657481858478675650
Data source: Temperature data for Briar 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 Briar

In Briar in September, the total precipitation amount is 84 mm (3.3 in) distributed over a span of 7 days.

September Precipitation Trends in Briar

The chart displays monthly precipitation patterns in Briar, 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 Briar, September typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec50798994138943881841284948
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Briar

In Briar in September, humidity is 64%. With an average temperature of 26°C (79°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as the air clings to your skin and the heat amplifies.

September Average Humidity in Briar

This chart illustrates the average monthly humidity levels in Briar, 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 Briar is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%74%75%80%80%75%67%64%70%82%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Briar

In Briar 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 Briar.

Maximum UV Index Levels in Briar for September

The chart shows the monthly maximum UV Index (UVI) for Briar 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 Briar typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110864
Data source: Briar 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 Briar Compares to Other Months

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

This table compares monthly weather conditions in Briar, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)49 mm (1.9 inches)77%moderate
February Weather9°C (48°F)79 mm (3.1 inches)76%high
March Weather15°C (60°F)89 mm (3.5 inches)74%very high
April Weather18°C (65°F)94 mm (3.7 inches)75%very high
May Weather23°C (74°F)138 mm (5.4 inches)80%extreme
June Weather27°C (81°F)94 mm (3.7 inches)80%extreme
July Weather29°C (85°F)38 mm (1.5 inches)75%extreme
August Weather29°C (85°F)81 mm (3.2 inches)67%extreme
September Weather26°C (79°F)84 mm (3.3 inches)64%very high
October Weather19°C (67°F)128 mm (5.0 inches)70%very high
November Weather13°C (56°F)49 mm (1.9 inches)82%high
December Weather10°C (51°F)48 mm (1.9 inches)85%moderate

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