Las Vegas Weather in May
United States · Hot Desert climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
May in Las Vegas sees average temperatures ranging from a low of 18.9°C (66.0°F) to a high of 32.5°C (90.5°F), with a mean of 26.2°C (79.2°F). Compared to the annual average of 21.5°C (70.7°F), this month is 4.7°C warmer than the yearly norm. Precipitation averages 0.3mm, making it approximately 9.0mm drier than the monthly average of 9.0mm. This is the driest month of the year, with just 0.3mm of precipitation. The city receives an average of 13.1 hours of sunshine per day during May, with relative humidity averaging 15.2%. Wind speeds reach an average maximum of 27.6 km/h. For travelers, this month offers a temperature experience in Las Vegas, with drier-than-average conditions compared to the rest of the year.
Las Vegas tricks you with air conditioning. I stepped off the plane in July at 42°C and the terminal was 18°C — the shock is real. Pack layers for the casinos, sunscreen for outside, and accept you'll move between climate zones every 30 minutes. June-August is genuinely dangerous outside; plan pool mornings, indoor afternoons. The sweet spots are March-April and October-November: 22-26°C, perfect for hiking Red Rock. Skip December-February unless you love 12°C days and 4°C nights. Always carry water — desert dehydration sneaks up. And lip balm. Always lip balm.
May vs Adjacent Months
| Metric | April | May | June |
|---|---|---|---|
| Mean Temp | 20.9°C (69.6°F) | 26.2°C (79.2°F) | 31.9°C (89.4°F) |
| Rainfall | 1.9mm | 0.3mm | 3.8mm |
| Sunshine | 12.3 hrs | 13.1 hrs | 13.6 hrs |
| Humidity | 19.7% | 15.2% | 14.3% |
| Wind | 25.6 km/h | 27.6 km/h | 26.1 km/h |
| Rainy Days | 1.8 | 0.8 | 0.8 |
Seasonal Context
May falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Las Vegas in May, the data indicates favorable conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Las Vegas in May?
The average temperature in Las Vegas during May ranges from 18.9°C (66.0°F) to 32.5°C (90.5°F), with a mean of 26.2°C (79.2°F).
How much does it rain in Las Vegas in May?
Las Vegas receives an average of 0.3mm of precipitation in May, spread across approximately 0.8 rainy days. This is the driest month of the year.
What should I pack for Las Vegas in May?
Based on May weather data, pack lightweight, breathable clothing, sunscreen, and a hat.
Is May a good time to visit Las Vegas?
May is a good time to visit Las Vegas, with comfortable temperatures and manageable rainfall.
Other Months for Las Vegas
Cities with Similar May Climate (Hot Desert)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 36.17°, -115.14°. Timezone: America/Los_Angeles. Last updated: 2026-07-30.