Las Vegas Weather
Las Vegas weather today, the 14-day forecast, and average temperature, rain and what to wear for every month — compared against Hong Kong. Best months to visit: Jan, Feb, Mar, Apr, Oct, Nov and Dec.
Las Vegas current weather
Las Vegas now (local time 00:45)
25°C
Partly cloudy
- Feels like
- 22°
- Humidity
- 23%
- Wind
- 7 km/h
Next 7 days · what to wear
21° – 36°C
Mostly dry all week
👕 T-shirts, shorts and breathable fabrics; sunscreen and water.
Las Vegas 14-day forecast
Today
10/4
☁️
36°
22°
💧1%
Mon
10/5
☀️
35°
21°
💧1%
Tue
10/6
☀️
35°
29°
💧0%
Wed
10/7
☀️
36°
29°
💧0%
Thu
10/8
☀️
36°
30°
💧0%
Fri
10/9
☁️
36°
30°
💧0%
Sat
10/10
☁️
34°
28°
💧4%
Sun
10/11
🌧️
28°
18°
💧11%
Mon
10/12
🌧️
19°
17°
💧11%
Tue
10/13
🌤️
23°
17°
💧6%
Wed
10/14
☀️
28°
21°
💧2%
Thu
10/15
☀️
29°
22°
💧3%
Fri
10/16
☀️
30°
25°
💧0%
Sat
10/17
☀️
31°
26°
💧0%
Best time to visit Las Vegas
On temperature and rainfall, the most comfortable months in Las Vegas are Jan, Feb, Mar, Apr, Oct, Nov and Dec. The hottest month is July (average high 42°C) and the coldest is December (average low 2°C).
Las Vegas climate by month
| Month | Avg high | Avg low | Rain | Humidity | vs Hong Kong |
|---|---|---|---|---|---|
| JanBest | 15°C | 2°C | 18 mm | 46% | -8°C |
| FebBest | 17°C | 4°C | 23 mm | 43% | -7°C |
| MarBest | 22°C | 8°C | 12 mm | 37% | -5°C |
| AprBest | 27°C | 11°C | 8 mm | 29% | -4°C |
| May | 33°C | 17°C | 3 mm | 22% | -2°C |
| Jun | 40°C | 23°C | 1 mm | 14% | +3°C |
| Jul | 42°C | 27°C | 15 mm | 22% | +5°C |
| Aug | 40°C | 26°C | 15 mm | 24% | +4°C |
| Sep | 36°C | 21°C | 9 mm | 23% | 0°C |
| OctBest | 28°C | 14°C | 13 mm | 28% | -5°C |
| NovBest | 20°C | 7°C | 12 mm | 35% | -9°C |
| DecBest | 14°C | 2°C | 18 mm | 46% | -11°C |
Data: NASA POWER 2001–2020 climatology (MERRA-2, elevation-corrected); Hong Kong comparison uses HKO 1991–2020 normals.
Las Vegas weather month by month: what to wear
Las Vegas in OctoberBest monthThis month
October in Las Vegas is warm to hot: average highs of 28°C and lows of 14°C, around 13 mm of rain (dry) and 28% humidity — about 5°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.
Las Vegas in NovemberBest month
November in Las Vegas is mild and cool: average highs of 20°C and lows of 7°C, around 12 mm of rain (dry) and 35% humidity — about 9°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.
Las Vegas in DecemberBest month
December in Las Vegas is chilly: average highs of 14°C and lows of 2°C, around 18 mm of rain (dry) and 46% humidity — about 11°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 A sweater plus a coat or windbreaker; big day–night swing, so dress in layers.
Las Vegas in JanuaryBest month
January in Las Vegas is chilly: average highs of 15°C and lows of 2°C, around 18 mm of rain (dry) and 46% humidity — about 8°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 A sweater plus a coat or windbreaker; big day–night swing, so dress in layers.
Las Vegas in FebruaryBest month
February in Las Vegas is mild and cool: average highs of 17°C and lows of 4°C, around 23 mm of rain (dry) and 43% humidity — about 7°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Long sleeves with a light jacket or sweater; big day–night swing, so dress in layers.
Las Vegas in MarchBest month
March in Las Vegas is pleasantly warm: average highs of 22°C and lows of 8°C, around 12 mm of rain (dry) and 37% humidity — about 5°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.
Las Vegas in AprilBest month
April in Las Vegas is warm to hot: average highs of 27°C and lows of 11°C, around 8 mm of rain (dry) and 29% humidity — about 4°C colder than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.
Las Vegas in May
May in Las Vegas is hot: average highs of 33°C and lows of 17°C, around 3 mm of rain (dry) and 22% humidity — about 2°C colder than Hong Kong.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.
Las Vegas in June
June in Las Vegas is hot: average highs of 40°C and lows of 23°C, around 1 mm of rain (dry) and 14% humidity — about 3°C warmer than Hong Kong.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.
Las Vegas in July
July in Las Vegas is hot: average highs of 42°C and lows of 27°C, around 15 mm of rain (dry) and 22% humidity — about 5°C warmer than Hong Kong.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.
Las Vegas in August
August in Las Vegas is hot: average highs of 40°C and lows of 26°C, around 15 mm of rain (dry) and 24% humidity — about 4°C warmer than Hong Kong.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.
Las Vegas in September
September in Las Vegas is hot: average highs of 36°C and lows of 21°C, around 9 mm of rain (dry) and 23% humidity — about the same as Hong Kong.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.
FAQ
›What is the best time to visit Las Vegas?
On temperature and rainfall, the most comfortable months in Las Vegas are Jan, Feb, Mar, Apr, Oct, Nov and Dec. The hottest month is July (average high 42°C) and the coldest is December (average low 2°C).
›What's the weather like in Las Vegas in October, and what should I wear?
October in Las Vegas is warm to hot: average highs of 28°C and lows of 14°C, around 13 mm of rain (dry) and 28% humidity — about 5°C colder than Hong Kong. It's one of the most comfortable months of the year to visit. What to wear: Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.
›What's the weather like in Las Vegas in November, and what should I wear?
November in Las Vegas is mild and cool: average highs of 20°C and lows of 7°C, around 12 mm of rain (dry) and 35% humidity — about 9°C colder than Hong Kong. It's one of the most comfortable months of the year to visit. What to wear: Short sleeves with a light long-sleeve or jacket for cool mornings and evenings; big day–night swing, so dress in layers.
›When is the rainy season in Las Vegas?
Las Vegas is wettest in February, with about 23 mm on average, and driest in June, with about 1 mm.
›How cold does Las Vegas get? Does it snow?
The coldest month is December, averaging 14°C by day and 2°C at night. Early mornings get close to freezing; snow is occasional.
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Forecast data: Open-Meteo.com (CC BY 4.0), refreshed every 3 hours. Hottest month: July; coldest: December.