Las Vegas weather in May
May in Las Vegas: warm, dry — an excellent time to visit.
#4 of 12 months in Las Vegas · #153 of 604 destinations to visit in May · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Las Vegas climate normals — May
| Daytime high | 31°C / 88°F | 🌤 warm |
|---|---|---|
| Nighttime low | 17°C / 62°F | |
| Feels like (high) | 28°C / 82°F | |
| Rainfall | 8 mm / 0.3 in | ☀️ dry |
| Rainy days | 3 days | |
| Humidity | 18% | 🌵 dry |
| Dew point | -3°C / 26°F | |
| Sunshine | 12.9 h/day | |
| Daylight | 14.1 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 64 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Las Vegas in May — FAQ
- Is May a good time to visit Las Vegas?
- May in Las Vegas: warm, dry — an excellent time to visit. It ranks #4 of 12 months for Las Vegas on SeasonMap's comfort score (87/100).
- What is the weather like in Las Vegas in May?
- In May, Las Vegas averages a daily high of 31.1°C and a low of 16.9°C, with about 8.1 mm of rain over roughly 2.6 rainy days.
- What is the air quality in Las Vegas in May?
- Las Vegas has a mean US Air Quality Index of about 64 in May.