September Weather in Oak City, United States

Last updated: June 24, 2025

In Oak City, United States, the average temperature in September hovers around 20°C (68°F). However, keep in mind that temperatures can range from a chilly -4°C (25°F) to a sizzling 37°C (99°F). Expect approximately 17 mm (0.7 in) of precipitation spread over 3 days, and enjoy a comfortable average humidity of 47%.

September Temperature in Oak City

In September in Oak City, the average temperature is 20°C (68°F), with maximums reaching 37°C (99°F) and minimums dropping as low as -4°C (25°F). This variety in temperatures makes Oak City an excellent destination for travelers seeking both warm and cooler experiences.

September Weather in Oak City: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Oak City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Oak City, September typically has an average temperature of 20°C (68°F), with highs reaching up to 37°C (99°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec273140505973817868504128
Data source: Temperature data for Oak City 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 Oak City

In Oak City in September, the precipitation amount is 17 mm (0.7 in) over the course of 3 days.

September Precipitation Trends in Oak City

The chart displays monthly precipitation patterns in Oak City, 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 Oak City, September typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec41445942438111517382940
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Oak City

In Oak City in September, humidity is 47%. With an average temperature of 20°C (68°F), this humidity feels like a comfortable backdrop for traveling, allowing for enjoyable outdoor activities without the overwhelming stickiness often associated with higher humidity levels.

September Average Humidity in Oak City

This chart illustrates the average monthly humidity levels in Oak City, 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 Oak City is approximately 47%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%77%70%54%45%37%34%47%67%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Oak City

In Oak City 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 Oak City.

Maximum UV Index Levels in Oak City for September

The chart shows the monthly maximum UV Index (UVI) for Oak City 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 Oak City typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110753
Data source: Oak City 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 Oak City Compares to Other Months

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

This table compares monthly weather conditions in Oak City, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)41 mm (1.6 inches)87%moderate
February Weather-1°C (31°F)44 mm (1.7 inches)88%high
March Weather4°C (40°F)59 mm (2.3 inches)77%very high
April Weather10°C (50°F)42 mm (1.7 inches)69%very high
May Weather15°C (59°F)43 mm (1.7 inches)54%extreme
June Weather23°C (73°F)8 mm (0.3 inches)45%extreme
July Weather27°C (81°F)11 mm (0.4 inches)37%extreme
August Weather26°C (79°F)15 mm (0.6 inches)34%extreme
September Weather20°C (68°F)17 mm (0.7 inches)47%very high
October Weather10°C (50°F)38 mm (1.5 inches)67%high
November Weather5°C (41°F)29 mm (1.1 inches)82%moderate
December Weather-2°C (28°F)40 mm (1.6 inches)87%moderate

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