Las Vegas Weather in August
United States · Hot Desert climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
August in Las Vegas sees average temperatures ranging from a low of 26.6°C (79.9°F) to a high of 39.7°C (103.5°F), with a mean of 33.5°C (92.3°F). Compared to the annual average of 21.5°C (70.7°F), this month is 12.0°C warmer than the yearly norm. Precipitation averages 20.4mm, making it approximately 11.0mm wetter than the monthly average of 9.0mm. This is the wettest month of the year, with 20.4mm of precipitation and around 5.2 rainy days. The city receives an average of 12.4 hours of sunshine per day during August, with relative humidity averaging 24.2%. Wind speeds reach an average maximum of 22.7 km/h. For travelers, this month offers a temperature experience in Las Vegas, with wetter-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.
August vs Adjacent Months
| Metric | July | August | September |
|---|---|---|---|
| Mean Temp | 35.6°C (96.1°F) | 33.5°C (92.3°F) | 29.6°C (85.3°F) |
| Rainfall | 5.4mm | 20.4mm | 12.6mm |
| Sunshine | 13.3 hrs | 12.4 hrs | 11.5 hrs |
| Humidity | 17.8% | 24.2% | 21.6% |
| Wind | 24.0 km/h | 22.7 km/h | 19.7 km/h |
| Rainy Days | 3.0 | 5.2 | 1.6 |
Seasonal Context
August falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting Las Vegas in August, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Las Vegas in August?
The average temperature in Las Vegas during August ranges from 26.6°C (79.9°F) to 39.7°C (103.5°F), with a mean of 33.5°C (92.3°F).
How much does it rain in Las Vegas in August?
Las Vegas receives an average of 20.4mm of precipitation in August, spread across approximately 5.2 rainy days. This is the wettest month of the year.
What should I pack for Las Vegas in August?
Based on August weather data, pack lightweight, breathable clothing, sunscreen, and a hat.
Is August a good time to visit Las Vegas?
August is a month with challenging conditions. Plan activities carefully and stay hydrated.
Other Months for Las Vegas
Cities with Similar August 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.