September weather forecastLas Vegas, NM
September
Weather in September
September brings a subtle hint of change, as the summer heat starts to recede. The descent in temperature is gentle, with the average high moving from 80.2°F (26.8°C) in August to a comfortable 73.8°F (23.2°C). Despite the drop, the weather stays pleasantly warm, allowing outdoor activities to continue. September promises a softer version of summer weather.Temperature
The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from 80.2°F (26.8°C) to a still moderately hot 73.8°F (23.2°C). Las Vegas experiences a nighttime temperature average of 52.7°F (11.5°C) during September.Humidity
In Las Vegas, the average relative humidity in September is 52%.Rainfall
In Las Vegas, in September, it is raining for 8 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 76.1 rainfall days, and 9.17" (233mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Las Vegas, New Mexico.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:33 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:45 pm MDT.
Sunshine
In Las Vegas, New Mexico, the average sunshine in September is 10.9h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Las Vegas, NM
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is December (42.1°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in September
Las Vegas, NM
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is April (29.87"Hg).
Average wind speed in September
Las Vegas, NM
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in September
Las Vegas, NM
- Average humidity in September: 52%
The months with the highest relative humidity are January and December (61%).
The months with the lowest relative humidity are April and June (37%).
Average rainfall in September
Las Vegas, NM
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is November (0.47").
Average rainfall days in September
Las Vegas, NM
- Average rainfall days in September: 8 days
The month with the highest number of rainy days is July (11.5 days).
The month with the least rainy days is November (2.6 days).
Average snowfall in September
Las Vegas, NM
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Las Vegas, NM
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Las Vegas, NM
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 10h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and February (Average sunshine: 7h and 0min).
Average sunshine days in September
Las Vegas, NM
- Average sunshine days in September: 19.4 days
The month with the most sunshine days is November (24.6 days).
The month with the least sunshine days is July (17.3 days).
Average UV index in September
Las Vegas, NM
- Average UV index in September: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Las Vegas, NM
- Average cloud cover in September: 16
The months with the most cloud cover are February, July and December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 13).
Average visibility in September
Las Vegas, NM
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
