United StatesAverage weather for Las Vegas in September
It's warm in September in Las Vegas with an average temperature of 26°C. Temperatures this month range from a low of 22°C to a high of 29°C. At night, you can expect temperatures between 8°C and 13°C.
Start of September
The month of September starts in Las Vegas with hot temps, averaging around 27°C during the day and nights around 12°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
Mid September
By mid-September, daytime temps drop to around 26°C, with nights around 10°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of September
By the end of September, the average daytime temperature in Las Vegas is around 25°C, while nighttime temps are about 9°C. A shower might pop up, but overall, the weather will be dry and sunny.
In September, there is an average of 65 mm of precipitation, spread over 6 days. Of the total precipitation, about 0,2 cm falls as snow in September. The wind speed is around 5 Bft, mostly coming from the South.
Las Vegas in September |
New York | ||
|---|---|---|---|
 Average temperature |
26°C | 27°C | |
 Max. temperature |
29°C | 31°C | |
| Min. temperature |
22°C | -5°C | |
 Total precipitation |
65 mm | 57 mm | |
| Rainy days |
6 days | 9 days | |
 Total snowfall |
0,2 cm | 0 cm | |
| Snowy days |
1 day | 0 days | |
August
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is September a good time to visit Las Vegas?
Looking for great weather? September is a good time to be in Las Vegas. The temperatures are nice, and there’s not too much rain.
Temperature records
With 34°C in 2020, Las Vegas reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 1°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of -3°C to a highest value of 17°C.
Check out the climate of Las Vegas for all months and discover the best travel time
Daily Temperature in September in Las Vegas
This chart shows the average daily high and low temperatures in September for Las Vegas, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in September in Las Vegas
The chart below shows the average daily precipitation in September for Las Vegas, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for September, you can expect about 6 days of precipitation in Las Vegas.
Daily Snowfall in September in Las Vegas
This chart shows the average daily snowfall in September in Las Vegas, measured in centimeters. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in September.
Daily UV index in September in Las Vegas
This chart shows the average daily UV index in September in Las Vegas, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in September in Las Vegas over the years
This chart shows the average temperature in September in Las Vegas, measured in degrees Celsius, over the past few years.
Total precipitation in September in Las Vegas over the years
This chart shows the average precipitation in September in Las Vegas, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Snowfall in September in Las Vegas per year
This chart shows the average snowfall in September in Las Vegas, measured in centimeters, over the past few years.
Daily weather in September for Las Vegas
Click on any day in September to get detailed info about the usual weather on that day in Las Vegas. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in September in Las Vegas
Have you been to Las Vegas in September?
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Average weather in Las Vegas by month
Click on a month below to see detailed weather info for Las Vegas. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Las Vegas for all months at once
