Weather in Las Vegas in August 2025
Average weather
Average temperature in Las Vegas in August
The temperature in August is +100°F on average, with a range between a maximum of +109°F during the day and a minimum of +68°F at night.
The average maximum temperature goes up 17% by the end of the month, compared with the beginning of the month, from +100°F to +108°F.
Is Las Vegas warm or cold in August?
Las Vegas is typically hot in August.
Maximum temperatures go down compared to the previous month from +104°F to +102°F. The minimum temperature also goes down from +81°F to +79°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
August is one of the warmest months in Las Vegas, here is the comparison with other months:
Climate in Las Vegas in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +104°F | +102°F | +95°F | ||||
| Min. temperature | ||||||
| +61°F | +64°F | +48°F | ||||
| Max. temperature | ||||||
| +117°F | +113°F | +113°F | ||||
| Rainfall | ||||||
| 11 mm | 18 mm | 12 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 21% | 25% | 24% | ||||
| Air pressure | ||||||
| 1010 HPa | 1011 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 19 | 20 | 22 | ||||
| Cloudy days | ||||||
| 3 | 2 | 2 | ||||
| Rainy days | ||||||
| 4 | 5 | 3 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as good as in July. It’s getting colder in August. From +104°F in the day, the average maximum temperature lowers to +102°F. Prepare for more rain. Average rainfall goes from 11 mm to 18 mm. Humidity rises from 21% to 25%. The average wind speed doesn’t change much during August, staying around 3 m/s. The good news is there are likely to be more sunny days in August, from 19 to 20.
September brings much the same weather, it remains good.
Wind
The average wind speed is 6 m/s getting up to 11 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Las Vegas is gradually decreasing during August, going from 11 m/s to 7 m/s over the course of the month.
Rain
How was the weather last August in Las Vegas?
Climate Change Over the Years
The climate in Las Vegas in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1982 (+77°F) and the highest in 2020 (+84°F). The driest year was 2002 with only 45 mm of rainfall, and the wettest year was 2019 with 306 mm.
FAQ
Is August a good time to visit Las Vegas?
Can you sunbathe in Las Vegas in August?
Is Las Vegas rainy in August?
Is it sunny in Las Vegas in August?
Other cities in USA
Monthly weather in Las Vegas
Source of the data
For this page, we’ve looked at the typical weather in Las Vegas, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.