nomadseason

September Weather in Nevada, United States

Last updated: June 24, 2025

In Nevada, United States, the average temperature in September hovers around 23°C (74°F), providing a comfortable climate. However, be prepared for temperature fluctuations, as it can dip as low as 6°C (43°F) and soar up to 35°C (96°F). Expect a bit of rain with an average precipitation of 89 mm (3.5 in) spread across 6 days, and maintain your cool with an average humidity of 64%.

September Temperature in Nevada

In September, in Nevada, the average temperature is 23°C (74°F). The maximum can reach 35°C (96°F), and the minimum can be as low as 6°C (43°F). It's essential to pack layers to accommodate the varying temperatures for a comfortable travel experience.

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

The chart illustrates September temperature patterns in Nevada, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nevada, September typically has an average temperature of 23°C (74°F), with highs reaching up to 35°C (96°F) and lows dropping to around 6°C (43°F).
JanFebMarAprMayJunJulAugSepOctNovDec353749566777817773594641
Data source: Temperature data for Nevada 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 Nevada

In Nevada in September, the total precipitation amount is 89 mm (3.5 in) spread over a duration of 6 days.

September Precipitation Trends in Nevada

The chart displays monthly precipitation patterns in Nevada, 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 Nevada, September typically receives around 89 mm (3.5 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec686113312717992107141891165439
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Nevada

In Nevada in September, humidity is 64%. With an average temperature of 23°C (74°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration enjoyable yet slightly sticky, so it's best to stay hydrated and take breaks in the shade while traveling.

September Average Humidity in Nevada

This chart illustrates the average monthly humidity levels in Nevada, 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 Nevada is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nevada

In Nevada 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 Nevada.

Maximum UV Index Levels in Nevada for September

The chart shows the monthly maximum UV Index (UVI) for Nevada 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 Nevada typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35710101111109753
Data source: Nevada 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 Nevada Compares to Other Months

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

This table compares monthly weather conditions in Nevada, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)68 mm (2.7 inches)81%moderate
February Weather3°C (37°F)61 mm (2.4 inches)78%moderate
March Weather10°C (50°F)133 mm (5.2 inches)76%high
April Weather13°C (56°F)127 mm (5.0 inches)78%very high
May Weather20°C (67°F)179 mm (7.0 inches)83%very high
June Weather25°C (78°F)92 mm (3.6 inches)83%extreme
July Weather27°C (81°F)107 mm (4.2 inches)78%extreme
August Weather25°C (78°F)140 mm (5.5 inches)68%very high
September Weather23°C (74°F)89 mm (3.5 inches)64%very high
October Weather15°C (59°F)116 mm (4.6 inches)70%high
November Weather8°C (47°F)54 mm (2.1 inches)83%moderate
December Weather5°C (41°F)39 mm (1.5 inches)87%moderate

Compare Nevada's Climate with Cities Worldwide