Annual mean 10°C · wettest around July · prevailing wind SW
Warmest
28.5 °C
Coldest
3.6 °C
Wettest
19%
Windiest
7.5 m/s
Prevailing
SW
5.6 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Las Vegas over the whole year is 10°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -5°C. Las Vegas has no sharply defined rainy season: the chance of rain on a given day runs from 12% in February, the driest month, to 21% in July, the wettest. Winds in Las Vegas are highest in April, averaging 5.3 m/s (19 km/h), and lightest in August, at 3.6 m/s (13 km/h). The prevailing wind is from the SW. The clearest skies in Las Vegas come in December, when the sky is typically 17% covered; August is the cloudiest month, at 27%.
Month by month Las Vegas climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
4°C
-5°C
-2°C
13%
23%
4.3 m/s
0
0
9
February
7°C
-3°C
-0°C
12%
22%
4.9 m/s
1
0
20
March
11°C
-1°C
3°C
14%
25%
5.2 m/s
4
0
32
April
15°C
3°C
8°C
16%
22%
5.3 m/s
14
0
57
May
20°C
8°C
13°C
18%
24%
5.0 m/s
43
1
75
June
26°C
14°C
21°C
18%
20%
4.4 m/s
79
25
61
July
28°C
15°C
24°C
21%
24%
3.7 m/s
79
52
37
August
26°C
13°C
23°C
20%
27%
3.6 m/s
85
41
48
September
24°C
10°C
19°C
20%
21%
3.8 m/s
81
15
71
October
17°C
5°C
11°C
19%
19%
4.2 m/s
35
1
69
November
11°C
-1°C
4°C
16%
18%
4.2 m/s
7
0
40
December
6°C
-4°C
-0°C
15%
17%
4.3 m/s
0
0
16
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Las Vegas weather by season
Year round, Las Vegas has days of about 4°C at their warmest in January, its coolest month, and 28°C in July, its warmest; the coolest hours of the day run from -5°C to 15°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around July and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Las Vegas weather in winterDecember to February
High 6°CLow -4°CRain 13%
Winter in Las Vegas has typical daily highs of about 6°C and lows of about -4°C, with a 13% chance of rain on a given day.
Las Vegas weather in springMarch to May
High 15°CLow 3°CRain 16%
Spring in Las Vegas has typical daily highs of about 15°C and lows of about 3°C, with a 16% chance of rain on a given day.
Las Vegas weather in summerJune to August
High 27°CLow 14°CRain 20%
Summer in Las Vegas has typical daily highs of about 27°C and lows of about 14°C, with a 20% chance of rain on a given day.
Las Vegas weather in autumnSeptember to November
High 17°CLow 5°CRain 18%
Autumn in Las Vegas has typical daily highs of about 17°C and lows of about 5°C, with a 18% chance of rain on a given day.
When is the rainy season in Las Vegas?
Las Vegas has no sharply defined rainy season: the chance of rain on a given day runs from 12% in February, the driest month, to 21% in July, the wettest.
What time of year is Las Vegas windiest?
Winds in Las Vegas are highest in April, averaging 5.3 m/s (19 km/h), and lightest in August, at 3.6 m/s (13 km/h). The prevailing wind is from the SW.
What is the average temperature in Las Vegas year round?
The average temperature in Las Vegas over the whole year is 10°C. July is the hottest month, with highs of about 28°C; January is the coldest, with lows of about -5°C.