Weather by Month - Las Vegas
Temperature Comparison
The biggest temperature swing occurs between October and November, with a change of 8°C.
Jan
COOL
Feb
MILD
Mar
MILD
Apr
WARM
May
HOT
Jun
HOT
Jul
HOT
Aug
HOT
Sep
HOT
Oct
WARM
Nov
MILD
Dec
COOL
| Month | Low Temperature | High Temperature | Category |
|---|---|---|---|
| January | | | cool |
| February | | | mild |
| March | | | mild |
| April | | | warm |
| May | | | hot |
| June | | | hot |
| July | | | hot |
| August | | | hot |
| September | | | hot |
| October | | | warm |
| November | | | mild |
| December | | | cool |
Rain & Sunshine Patterns
Driest Months
#1 June
Best for: outdoor activities & sightseeing
#2 May
Best for: outdoor activities & sightseeing
#3 April
Best for: outdoor activities & sightseeing
Wettest Months
#1 February
Expect: possible showers, pack waterproofs
#2 January
Expect: possible showers, pack waterproofs
#3 December
Expect: possible showers, pack waterproofs
UV & Sun Protection Calendar
⚠️ High UV Alert: March, April, May, June, July, August, September, October require serious sun protection.
Jan
4
MODERATE
Feb
6
MODERATE
Mar
7
HIGH
Apr
8
VERY-HIGH
May
9
VERY-HIGH
Jun
9
VERY-HIGH
Jul
9
VERY-HIGH
Aug
9
VERY-HIGH
Sep
8
HIGH
Oct
6
HIGH
Nov
5
MODERATE
Dec
4
MODERATE
Extreme (11+)
Avoid sun during midday, use SPF 50+
Very High (8-10)
Essential sun protection required
High (6-7)
Use SPF 30+, wear hat & sunglasses
Moderate (3-5)
Sun protection recommended
Low-Moderate (1-2)
Minimal protection needed
Low (0)
No protection required
Daylight Hours
Daylight varies from 9.7 hours in December (winter) to 14.6 hours in June (summer), which is a difference of 4.9 hours.
Shortest Days
December
9.7h
Average Sunrise:06:43
Average Sunset:16:28
Plan daytime activities for midday when light is best. Early sunsets mean evening plans should account for darkness.
Longest Days
June
14.6h
Average Sunrise:04:23
Average Sunset:18:58
Extended daylight perfect for evening activities and late dining. You can fit more sightseeing into each day.
Wind & Humidity Overview
Wind Conditions
Average wind speed
Windiest months:
April (11 km/h)
May (10 km/h)
June (10 km/h)
Packing tip: Conditions are generally calm, but a light layer is always handy.
Humidity Levels
Average humidity
29%
Most humid:
January (45%)
Least humid:
June (15%)
Packing tip: Standard clothing works fine; humidity is generally comfortable.
Seasonal Overview
Northern Hemisphere seasons shape the weather patterns throughout the year. Here's what to expect in each season:
Winter
January, February, December
Avg High 14°C
Avg Low 4°C
Avg Rain 18 mm
Cool weather; bring layers and a jacket
Spring
March, April, May
Avg High 26°C
Avg Low 13°C
Avg Rain 6 mm
Pleasant warming; ideal for outdoor activities
Summer
June, July, August
Avg High 38°C
Avg Low 25°C
Avg Rain 6 mm
Hot and sunny; sun protection essential
Autumn
September, October, November
Avg High 26°C
Avg Low 15°C
Avg Rain 9 mm
Mild conditions; transitional weather
Monthly Details
Click any month for detailed weather information and packing advice.
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View Best Time to VisitFrequently Asked Questions
When is Las Vegas warmest?
July is typically the warmest month in Las Vegas, with average high temperatures reaching around 39°C (102°F). This is peak summer weather, ideal for outdoor activities and sightseeing.
When is Las Vegas coldest?
December is usually the coldest month, with average low temperatures dropping to around 4°C (39°F). Pack warm layers if visiting during this time, especially for evening activities.
When does Las Vegas get the most rain?
February typically sees the most rainfall in Las Vegas, averaging around 21mm (0.8 inches). It's wise to pack waterproof layers and have some indoor backup plans if you're visiting during this month.
What is the driest month in Las Vegas?
June is typically the driest month, with average rainfall of just 2mm (0.1 inches). This makes it an excellent time for outdoor exploration and activities with minimal risk of rain disruption.
How much does the temperature vary in Las Vegas throughout the year?
Temperatures in Las Vegas range from average lows of 14°C (57°F) to highs of 26°C (79°F). This variation means you'll want to pack differently depending on when you visit—layers are key for adapting to the seasonal changes.
Do I need sun protection when visiting Las Vegas?
Yes, sun protection is important in Las Vegas. UV levels can reach 9 during peak months, which is considered very high. Pack sunscreen (SPF 30+), sunglasses, and a hat, especially if you'll be outdoors for extended periods.