September weather forecast
Las Vegas, NM

Weather in September

The first month of the autumn, September, is still a warm month in Las Vegas, New Mexico, with an average temperature fluctuating between 73.8°F (23.2°C) and 52.7°F (11.5°C).

Temperature

In September, the average high-temperature marginally drops from 80.2°F (26.8°C) in August to a still moderately hot 73.8°F (23.2°C). In Las Vegas, the average low-temperature is 52.7°F (11.5°C).

Humidity

In Las Vegas, the average relative humidity in September is 52%.

Rainfall

In Las Vegas, 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

In Las Vegas, snow does not fall in June through September.

Daylight

The average length of the day in September in Las Vegas is 12h and 23min.
On the first day of September, sunrise is at 6:33 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:46 pm MDT.

Sunshine

The average sunshine in September is 10.9h.

UV index

In Las Vegas, New Mexico, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Las Vegas?

In September, the average high-temperature is 73.8°F (23.2°C), and the average low-temperature is 52.7°F (11.5°C). in July, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 82.4°F (28°C).

What is the average humidity in September in Las Vegas?

In Las Vegas, the average relative humidity in September is 52%.

How much does it rain in Las Vegas in September?

In Las Vegas, in September, during 8 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

When it does not snow in Las Vegas?

In Las Vegas, snow does not fall in June through September.

Does it snow in Las Vegas in September?

In Las Vegas, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Las Vegas have in September?

The average day length in September in Las Vegas, New Mexico, is 12h and 23min.

When are sunrise and sunset in September in Las Vegas?

In September, on the first day of the month, sunrise is at 6:33 am and sunset at 7:28 pm. On the last day of the month, in Las Vegas, New Mexico, sunrise is at 6:55 am and sunset at 6:46 pm MDT.

How many hours of sunshine does Las Vegas have in September?

The average sunshine duration in September is 10.9h.

What is the UV index intensity in September in Las Vegas?

The average daily maximum UV index in September in Las Vegas, New Mexico, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Las Vegas, NM

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).

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Average pressure in September
Las Vegas, NM

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).

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Average wind speed in September
Las Vegas, NM

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).

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Average humidity in September
Las Vegas, NM

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%).

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Average rainfall in September
Las Vegas, NM

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").

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Average rainfall days in September
Las Vegas, NM

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).

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Average snowfall in September
Las Vegas, NM

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").

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Average snowfall days in September
Las Vegas, NM

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).

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Average daylight in September /
Average sunshine in September
Las Vegas, NM

Average daylight in September / Average sunshine in September - Las Vegas, NM
  • Average daylight in September: 12h and 23min

The month with the longest days is June (Average daylight: 14h and 32min).
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).

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Average sunshine days in September
Las Vegas, NM

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).

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Average UV index in September
Las Vegas, NM

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).

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Average cloud cover in September
Las Vegas, NM

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).

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Average visibility in September
Las Vegas, NM

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).

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