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September Weather in Fort Lee, United States

Last updated: June 24, 2025

In Fort Lee, United States, the average temperature in September is a pleasant 23°C (74°F). Expect a range that can drop to a cool 8°C (47°F) at night and rise to a sweltering 37°C (98°F) during the day. Be prepared for 103 mm (4.1 in) of precipitation spread over 10 days, with an average humidity level of 78%. 🌦️

September Temperature in Fort Lee

In September in Fort Lee, the average temperature is 23°C (74°F), with maximums reaching 37°C (98°F) and minimums dropping to as low as 8°C (47°F). This makes it an ideal time for travelers to enjoy a variety of outdoor activities while being prepared for both warm days and cooler evenings.

September Weather in Fort Lee: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Fort Lee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Lee, September typically has an average temperature of 23°C (74°F), with highs reaching up to 37°C (98°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec404550606876817873645044
Data source: Temperature data for Fort Lee 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 Fort Lee

In Fort Lee in September, the precipitation amount is 103 mm (4.1 in) over a span of 10 days.

September Precipitation Trends in Fort Lee

The chart displays monthly precipitation patterns in Fort Lee, 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 Fort Lee, September typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec7299771061031241181681031277591
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fort Lee

In Fort Lee in September humidity is 78%. With an average temperature of 23°C (74°F), this humidity feels like a warm, enveloping embrace, making travel somewhat stifling and prompting frequent breaks to hydrate and seek shade.

September Average Humidity in Fort Lee

This chart illustrates the average monthly humidity levels in Fort Lee, 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 Fort Lee is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%82%81%80%82%81%81%78%80%84%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fort Lee

In Fort Lee 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 Fort Lee.

Maximum UV Index Levels in Fort Lee for September

The chart shows the monthly maximum UV Index (UVI) for Fort Lee 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 Fort Lee typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3679101010108753
Data source: Fort Lee 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 Fort Lee Compares to Other Months

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

This table compares monthly weather conditions in Fort Lee, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)72 mm (2.8 inches)84%moderate
February Weather7°C (45°F)99 mm (3.9 inches)83%high
March Weather10°C (50°F)77 mm (3.0 inches)82%high
April Weather15°C (60°F)106 mm (4.2 inches)81%very high
May Weather20°C (69°F)103 mm (4.0 inches)80%very high
June Weather24°C (76°F)124 mm (4.9 inches)82%very high
July Weather27°C (81°F)118 mm (4.6 inches)81%very high
August Weather26°C (78°F)168 mm (6.6 inches)81%very high
September Weather23°C (74°F)103 mm (4.1 inches)78%very high
October Weather18°C (64°F)127 mm (5.0 inches)80%high
November Weather10°C (50°F)75 mm (3.0 inches)84%moderate
December Weather7°C (44°F)91 mm (3.6 inches)84%moderate

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