September Weather in Millville, United States

Last updated: June 24, 2025

In September, the average temperature in Millville, United States is a pleasant 23°C (73°F). Visitors can expect a range from a minimum of 15°C (59°F) to a maximum of 31°C (87°F). The region experiences 97 mm (3.8 in) of precipitation spread over approximately 10 days, contributing to an average humidity of 75%. This combination creates a unique climate perfect for exploration and discovery!

September Temperature in Millville

In September in Millville, the average temperature is 23°C (73°F), with maxima reaching up to 31°C (87°F) and minima dropping to as low as 15°C (59°F). This pleasant climate makes it an ideal time for travelers to explore the area and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Millville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Millville, September typically has an average temperature of 23°C (73°F), with highs reaching up to 31°C (87°F) and lows dropping to around 15°C (59°F).
JanFebMarAprMayJunJulAugSepOctNovDec404245536271787773655245
Data source: Temperature data for Millville 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 Millville

In Millville in September, the total precipitation amount is 97 mm (3.8 in) over a span of 10 days.

September Precipitation Trends in Millville

The chart displays monthly precipitation patterns in Millville, 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 Millville, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8211410287121821141119713795116
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Millville

In Millville in September, humidity is 75%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel slightly uncomfortable yet invigorating as the air wraps around you, creating a sense of walking through a lush, tropical paradise.

September Average Humidity in Millville

This chart illustrates the average monthly humidity levels in Millville, 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 Millville is approximately 75%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Millville

In Millville in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Millville.

Maximum UV Index Levels in Millville for September

The chart shows the monthly maximum UV Index (UVI) for Millville 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 Millville typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101010108753
Data source: Millville 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 Millville Compares to Other Months

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

This table compares monthly weather conditions in Millville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)82 mm (3.2 inches)84%moderate
February Weather6°C (42°F)114 mm (4.5 inches)83%moderate
March Weather7°C (45°F)102 mm (4.0 inches)83%high
April Weather12°C (53°F)87 mm (3.4 inches)81%very high
May Weather16°C (62°F)120 mm (4.7 inches)78%very high
June Weather22°C (71°F)82 mm (3.2 inches)79%very high
July Weather25°C (78°F)114 mm (4.5 inches)74%very high
August Weather25°C (77°F)111 mm (4.4 inches)72%very high
September Weather23°C (73°F)97 mm (3.8 inches)75%very high
October Weather18°C (65°F)137 mm (5.4 inches)81%high
November Weather11°C (52°F)95 mm (3.8 inches)85%moderate
December Weather7°C (45°F)116 mm (4.6 inches)84%moderate

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