Monthly climate guide
Las Vegas weather in August
August in Las Vegas is typically very hot, with average daytime highs around 40°C (103°F) and night-time lows near 25°C (77°F). The month usually brings about 18 mm of rain (very dry) and is mostly sunny. Daytime highs are about the same as July and 4°C warmer than September.
What stands out in August
- August is Las Vegas's second warmest month.
- Seasonally, August counts as late summer in Las Vegas.
- Expect a big gap between day and night — about 15°C.
- Even after dark it stays around 25°C, so sleeping can feel warm.
It's usually the wettest month of the year.
Avg high
40°C
103°F
Avg low
25°C
77°F
Rainfall
18 mm
very dry
Humidity
24%
relative
Sky
31%
cloud · mostly sunny
Las Vegas weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 15°C / 59°F | 3°C / 37°F | 17 mm | 46% | 45% |
| February | 18°C / 64°F | 4°C / 39°F | 15 mm | 41% | 39% |
| March | 22°C / 72°F | 8°C / 46°F | 13 mm | 36% | 46% |
| April | 27°C / 80°F | 11°C / 52°F | 9 mm | 28% | 38% |
| May | 31°C / 88°F | 15°C / 59°F | 6 mm | 24% | 35% |
| June | 39°C / 102°F | 22°C / 71°F | 1 mm | 14% | 23% |
| July | 40°C / 105°F | 25°C / 78°F | 17 mm | 23% | 36% |
| August | 40°C / 103°F | 25°C / 77°F | 18 mm | 24% | 31% |
| September | 35°C / 96°F | 21°C / 69°F | 10 mm | 26% | 24% |
| October | 28°C / 83°F | 14°C / 57°F | 10 mm | 27% | 26% |
| November | 21°C / 69°F | 7°C / 45°F | 12 mm | 33% | 34% |
| December | 14°C / 58°F | 2°C / 36°F | 13 mm | 43% | 44% |
What to pack for August
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- An extra layer — evenings are noticeably cooler than afternoons
- Sunglasses
Is August a good time to visit Las Vegas?
Compare the months in the chart above to find your ideal window.
Best time to visit Las Vegas →Other United States cities in August
Cite or embed this data
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Las Vegas weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/las-vegas/august
<a href="https://weathercompare.eu/weather/usa/las-vegas/august">Las Vegas weather in August</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/usa/las-vegas" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Las Vegas weather in August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/usa/las-vegas/august">Las Vegas weather in August</a> – WeatherCompare</p>
Las Vegas in August: quick answers
Is August a good time to visit Las Vegas?
It can be, if you like heat: August highs in Las Vegas are around 40°C. Good for the beach; plan sightseeing for early morning and evening.
How warm is Las Vegas in August?
Average highs are about 40°C (103°F) and average lows about 25°C (77°F), based on 10 years of daily data.
Does it rain a lot in Las Vegas in August?
Las Vegas typically gets around 18 mm of rain in August — very dry. It's usually the wettest month of the year.
Figures are long-term averages for the area around Las Vegas (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.