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September Weather in Auburn, United States

Last updated: June 24, 2025

In Auburn, United States, the average temperature in September hovers around 25°C (78°F). Expect a range where the minimum can dip to 12°C (54°F) and the maximum might soar to 37°C (99°F). During this month, precipitation typically totals 99 mm (3.9 in) across about 10 days, contributing to an average humidity of 73%.

September Temperature in Auburn

In September in Auburn, the average temperature is 25°C (78°F). Maximums can reach 37°C (99°F) and minimums can be as low as 12°C (54°F). This climate makes Auburn an ideal destination for travelers seeking warm weather and a pleasant getaway.

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

The chart illustrates September temperature patterns in Auburn, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Auburn, September typically has an average temperature of 25°C (78°F), with highs reaching up to 37°C (99°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec495560657378818178695551
Data source: Temperature data for Auburn 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 Auburn

In Auburn in September, the total precipitation amount is 99 mm (3.9 in) spread over a period of 10 days.

September Precipitation Trends in Auburn

The chart displays monthly precipitation patterns in Auburn, 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 Auburn, September typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec1211291061201201251071219911578143
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Auburn

In Auburn in September, humidity is 73%. With an average temperature of 25°C (78°F), this humidity feels like stepping into a warm, heavy blanket that wraps around you, making travel feel sluggish and requiring regular breaks to stay refreshed.

September Average Humidity in Auburn

This chart illustrates the average monthly humidity levels in Auburn, 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 Auburn is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%81%77%77%72%73%73%85%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Auburn

In Auburn 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 Auburn.

Maximum UV Index Levels in Auburn for September

The chart shows the monthly maximum UV Index (UVI) for Auburn 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 Auburn typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101111111110864
Data source: Auburn 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 Auburn Compares to Other Months

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

This table compares monthly weather conditions in Auburn, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)121 mm (4.7 inches)85%moderate
February Weather13°C (55°F)129 mm (5.1 inches)84%high
March Weather15°C (60°F)106 mm (4.2 inches)82%very high
April Weather18°C (65°F)120 mm (4.7 inches)82%very high
May Weather23°C (74°F)120 mm (4.7 inches)81%extreme
June Weather26°C (79°F)125 mm (4.9 inches)77%extreme
July Weather27°C (81°F)107 mm (4.2 inches)77%extreme
August Weather27°C (81°F)121 mm (4.8 inches)72%extreme
September Weather25°C (78°F)99 mm (3.9 inches)73%very high
October Weather21°C (69°F)115 mm (4.5 inches)73%very high
November Weather13°C (56°F)78 mm (3.1 inches)85%high
December Weather11°C (52°F)143 mm (5.6 inches)88%moderate

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