nomadseason

September Weather in Kellyville, United States

Last updated: June 24, 2025

In September, the average temperature in Kellyville, United States is a pleasant 24°C (76°F), making it an ideal time to explore the area. Temperatures can vary widely, dropping as low as 8°C (46°F) and soaring up to a sizzling 37°C (99°F). Expect 90 mm (3.6 in) of precipitation over about 7 days, contributing to an average humidity of 64%. Perfect weather for enjoying both indoor and outdoor activities!

September Temperature in Kellyville

In September, in Kellyville, the average temperature is 24°C (76°F). The maximum can reach 37°C (99°F), and the minimum can be as low as 8°C (46°F). Travelers should be prepared for warm days and cooler nights while exploring this vibrant destination.

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

The chart illustrates September temperature patterns in Kellyville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kellyville, September typically has an average temperature of 24°C (76°F), with highs reaching up to 37°C (99°F) and lows dropping to around 8°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec394154597079828076625044
Data source: Temperature data for Kellyville generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Kellyville

In Kellyville in September, the total precipitation amount is 90 mm (3.6 in) over a period of 7 days.

September Precipitation Trends in Kellyville

The chart displays monthly precipitation patterns in Kellyville, 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 Kellyville, September typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec72641041501699895116901314540
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Kellyville

In Kellyville in September, humidity is 64%. With an average temperature of 24°C (76°F), this humidity feels like a warm, sticky embrace, making travel slightly uncomfortable but still enjoyable, as you may find yourself yearning for a refreshing breeze or a quick dip in the water.

September Average Humidity in Kellyville

This chart illustrates the average monthly humidity levels in Kellyville, 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 Kellyville is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%78%75%75%83%82%78%68%64%71%82%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kellyville

In Kellyville in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Kellyville.

Maximum UV Index Levels in Kellyville for September

The chart shows the monthly maximum UV Index (UVI) for Kellyville 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 Kellyville typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46710101111109753
Data source: Kellyville 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 Kellyville Compares to Other Months

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

This table compares monthly weather conditions in Kellyville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)72 mm (2.8 inches)79%moderate
February Weather5°C (41°F)64 mm (2.5 inches)78%high
March Weather12°C (54°F)104 mm (4.1 inches)75%high
April Weather15°C (59°F)150 mm (5.9 inches)75%very high
May Weather21°C (70°F)169 mm (6.6 inches)83%very high
June Weather26°C (79°F)98 mm (3.9 inches)81%extreme
July Weather28°C (83°F)95 mm (3.8 inches)78%extreme
August Weather27°C (81°F)116 mm (4.6 inches)68%very high
September Weather24°C (76°F)90 mm (3.6 inches)64%very high
October Weather17°C (62°F)131 mm (5.2 inches)71%high
November Weather10°C (50°F)45 mm (1.8 inches)82%moderate
December Weather7°C (44°F)40 mm (1.6 inches)87%moderate

Compare Kellyville's Climate with Cities Worldwide