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September Weather in New Alexandria, United States

Last updated: June 24, 2025

In September, the average temperature in New Alexandria, United States is a pleasant 19°C (67°F). Temperatures can fluctuate, with a minimum of 4°C (40°F) and a maximum of 33°C (92°F). Expect about 126 mm (4.9 in) of precipitation over 10 days, contributing to an average humidity of 67%. Dress accordingly for a mix of mild and warm days!

September Temperature in New Alexandria

In September in New Alexandria, the average temperature is 19°C (67°F). Maximums can reach 33°C (92°F) while minimums can be as low as 4°C (40°F). This range makes it an ideal time for travelers to enjoy a variety of outdoor activities while also being prepared for cooler evenings.

September Weather in New Alexandria: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in New Alexandria, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Alexandria, September typically has an average temperature of 19°C (67°F), with highs reaching up to 33°C (92°F) and lows dropping to around 4°C (40°F).
JanFebMarAprMayJunJulAugSepOctNovDec313541516270747367574236
Data source: Temperature data for New Alexandria 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 New Alexandria

In New Alexandria in September, the precipitation amount is 126 mm (4.9 in) distributed over a span of 10 days.

September Precipitation Trends in New Alexandria

The chart displays monthly precipitation patterns in New Alexandria, 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 New Alexandria, September typically receives around 126 mm (4.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec941281111291591471459012611994105
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in New Alexandria

In New Alexandria in September, humidity is 67%. With an average temperature of 19°C (67°F), this humidity feels like walking through a warm, soft blanket, making sightseeing and outdoor activities a bit more challenging but still enjoyable for those prepared with light clothing and plenty of hydration.

September Average Humidity in New Alexandria

This chart illustrates the average monthly humidity levels in New Alexandria, 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 New Alexandria is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%89%88%80%79%74%64%67%81%89%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in New Alexandria

In New Alexandria 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 New Alexandria.

Maximum UV Index Levels in New Alexandria for September

The chart shows the monthly maximum UV Index (UVI) for New Alexandria 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 New Alexandria typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098642
Data source: New Alexandria 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 New Alexandria Compares to Other Months

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

This table compares monthly weather conditions in New Alexandria, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)94 mm (3.7 inches)89%moderate
February Weather2°C (35°F)128 mm (5.0 inches)90%moderate
March Weather5°C (41°F)111 mm (4.4 inches)89%high
April Weather11°C (51°F)129 mm (5.1 inches)88%very high
May Weather17°C (62°F)159 mm (6.3 inches)80%very high
June Weather21°C (70°F)147 mm (5.8 inches)79%very high
July Weather23°C (75°F)145 mm (5.7 inches)74%very high
August Weather23°C (73°F)90 mm (3.6 inches)64%very high
September Weather19°C (67°F)126 mm (4.9 inches)67%very high
October Weather14°C (57°F)119 mm (4.7 inches)81%high
November Weather5°C (42°F)94 mm (3.7 inches)89%moderate
December Weather2°C (36°F)105 mm (4.1 inches)88%low

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