Las Vegas weather in December

In December, Las Vegas sees average daytime highs of 33°C and overnight lows near 23°C, with 40 mm of rain across 7.5 wet days and about 11.5 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. The sky is clear or mostly clear about 32% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 30 min at the start of December to 11 h 30 min by month's end. Set against the rest of the year, December is Las Vegas's 3rd-clearest and 4th-windiest month. For the whole year in context, see Las Vegas's year-round climate.

Daytime high
33°
5th warmest
Overnight low
23°
6th coldest
Rainfall
40 mm
7.5 wet days
Daylight
11 h 24 min
6:17 AM – 5:44 PM
Cloud cover
57%
3rd clearest
Wind
7 km/h
4th windiest
Solar energy
5.04 kWh/m²
Travel score
3.7
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical December day in Las Vegas reaches about 33°C in the afternoon and slips back to 23°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 35°C. Set against its neighbours, December runs about 1°C warmer than November and about 1°C cooler than January.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13223
23323
33323
43323
53323
63323
73323
83323
93323
103323
113323
123323
133323
143323
153323
163323
173323
183323
193323
203323
213323
223323
233323
243323
253323
263323
273323
283423
293423
303423
313423

How December really feels in Las Vegas

Once humidity and wind are folded in, December averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Las Vegas weather by month

How December compares with the rest of the year at a glance. December is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 23°92.211.53.4
Feb35° / 24°81.911.72.8
Mar36° / 25°305.111.92.3
Apr34° / 25°13515.112.22.4
May32° / 24°26724.412.42.6
Jun30° / 23°2722612.52.8
Jul30° / 23°2452812.52.8
Aug30° / 23°21827.712.32.8
Sep31° / 23°19326.112.12.7
Oct32° / 23°1722511.82.7
Nov32° / 23°11118.511.63.0
Dec33° / 23°407.511.53.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24357
34555
44555
54654
64753
74753
84852
94852
104951
115149
125149
135248
145347
155446
165545
175644
185644
195644
205743
215842
225842
235941
245941
256040
266139
276139
286139
296139
306238
316337

Chance of precipitation in December

Any precipitation

Las Vegas gets around 40 mm of rain over 7.5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 25% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
142
241
339
438
537
636
734
833
932
1030
1129
1227
1326
1425
1523
1622
1721
1820
1919
2019
2118
2217
2317
2416
2516
2615
2715
2814
2914
3014
3113

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the oppressive band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 91% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1124696
2125686
3127675
4228655
5229645
6231634
7332614
8433603
9434593
10535573
11637552
12638542
13740512
14742491
15843471
16845451
17947441
181048421
191050400
201151380
211252360
221254340
231354330
241455310
251556290
261656280
271757260
281857250
291958230
302058220
312158210

Wind in December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 30 min at the start of December to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:10 AM to 6:24 AM, and sunset from 5:39 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:105:39
211.56:105:39
311.56:115:39
411.56:115:40
511.56:125:40
611.56:125:40
711.56:135:41
811.56:135:41
911.56:145:41
1011.56:145:42
1111.56:155:42
1211.56:155:42
1311.56:165:43
1411.46:165:43
1511.46:175:44
1611.46:175:44
1711.46:185:45
1811.46:185:45
1911.46:195:45
2011.46:195:46
2111.46:205:46
2211.46:205:47
2311.46:215:47
2411.46:215:48
2511.46:225:48
2611.46:225:49
2711.46:225:49
2811.46:235:50
2911.46:235:50
3011.46:245:51
3111.56:245:51

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.04 kWh/m².

For context, solar energy here swings from a low near 4.18 kWh/m² to a high of 5.87 kWh/m² in March across the year — December's 5.04 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in December

Hazard calendar for Las Vegas

In seasonPeak

None of Las Vegas's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Las Vegas's rainy season runs April–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Las Vegas?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.7
Sightseeing
1st-best month of the year
6.5
Beach & pool
2nd-best month of the year

December is a weaker month for outdoor sightseeing in Las Vegas. The water and warmth also suit a beach or pool day.

What to pack for Las Vegas in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Las Vegas sees daytime highs around 33°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in Las Vegas in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Las Vegas peaks around February 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highFeb 22UV 13Dec 12UV 9
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov9Very high
Dec9Very high

Air quality in Las Vegas in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Las Vegas is worst in March — around 33 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 14 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2233 µg/m³Dec 2014 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb20Moderate
Mar33Moderate
Apr31Moderate
May30Moderate
Jun30Moderate
Jul25Moderate
Aug22Moderate
Sep21Moderate
Oct21Moderate
Nov18Moderate
Dec14Moderate
Location & terrain

Where is Las Vegas?

Las Vegas sits at 9.5°N, 68.6°W, 120 m above sea level, in Venezuela. The nearest listed city is San Carlos, 15 km away.

Topography around Las Vegas

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Las Vegas.

Within 3 km, the terrain around Las Vegas has only modest variations in elevation — a maximum elevation change of 27 m around an average of 115 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 195 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,700 m.

The land around Las Vegas is covered by grassland (50%) and trees (29%) within 3 km, grassland (53%) and trees (41%) within 16 km, and trees (48%) and grassland (40%) within 80 km.

3 km
27 m
16 km
195 m
80 km
1,700 m
treesshrubsgrasslandcroplandartificial surfaces
December weather nearby: San Carlos 15 km · Tinaco 28 km · San Rafael de Onoto 41 km · Tinaquillo 55 km · El Pao 56 km · Villa Bruzual 58 km · Acarigua 62 km · Píritu 66 km

Venezuela travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 0% of US
price level, 2011
GDP per capita
$3,495
2025
Happiness
5.8 / 10
World Happiness, 2025
Homicide rate
12.6
per 100k, 2022
Road deaths
39
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 520
Religion
Roman Catholic 48%Protestant 32%none 14%believer 4%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Las Vegas (9.5372°, -68.6302°, elevation 120 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).