Las Vegas weather in August
Las Vegas in August averages 32°C (90°F) and 8 mm of rain. It is one of the driest months of the year here.
Of the twelve months in Las Vegas, August is the second warmest and the fifth driest.
- Average temp
- 32°C (90°F)
26–39°C · 79–102°F
- Rainfall
- 8 mm
Not much rain
- Sunshine
- —
- Wind
- 13 km/h
What is Las Vegas like in August?
Daytime
Days are hot, often above 32°C.
Rain
Rain is usually light.
Evening
Evenings stay warm.
What should I pack for Las Vegas in August?
High-factor sun cream
With daytime highs around 39°C, burn time is short even in shade.
Sunglasses and a brimmed hat
Midday glare is the part people underpack for, not the heat itself.
Loose cotton or linen
Synthetics stop working once you are sweating through them all day.
A refillable water bottle
Daily highs this warm need roughly double the water a temperate day does.
A layer for the evening
The day swings about 13°C between its low and its high.
Comfortable walking shoes you can rinse
Dry warm weather is walking weather, and dust gets into everything.
August compared with July and September
August in Las Vegas is 1.2°C cooler than July and about as wet as it, which averages 34°C (92°F).
August in Las Vegas is 4°C warmer than September and about as wet as it, which averages 28°C (83°F).
Daylight in Las Vegas in August
On 15 August the sun is up for 13 hours 31 minutes in Las Vegas, rising about 05:59 and setting about 19:29 local time.
August ends 1 hour shorter than it begins, so the last week of the month is a different length of day from the first.
That is 1 hour 6 minutes short of June, the longest-lit month here.
Where to stay in Las Vegas
Dates are a starting point for August.
Las Vegas weather by month
TemperatureRainfall
How August compares with the rest of the year
August is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 9°C / 49°F | 14 mm |
| February | 12°C / 54°F | 21 mm |
| March | 12°C / 54°F | 11 mm |
| April | 20°C / 68°F | 5 mm |
| May | 25°C / 76°F | 2 mm |
| June | 31°C / 88°F | 1 mm |
| July | 34°C / 92°F | 9 mm |
| August | 32°C / 90°F | 8 mm |
| September | 28°C / 83°F | 8 mm |
| October | 21°C / 70°F | 8 mm |
| November | 14°C / 57°F | 8 mm |
| December | 10°C / 49°F | 11 mm |
Check another month
This is the month you are reading. Change either side to look at another.
FAQs about Las Vegas in August
August climate averages for Las Vegas, 1991–2020.
Las Vegas averages 32°C (90°F) in August, ranging from about 26°C (79°F) at night to 39°C (102°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. August sees only about 8 mm, so rain is unlikely to affect your plans.
Yes. August averages 32°C (90°F) against 28°C (83°F) in September — 4°C warmer.
August is 1.2°C cooler than July, and about as wet.
It is outside the easiest window. The most comfortable stretch here is April to June; August sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what August is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 13 hours 31 minutes of daylight in mid-August, against 14 hours 37 minutes in June and 9 hours 43 minutes in December.
On 15 August, sunrise is about 05:59 and sunset about 19:29 local time. Both shift across the month — the month ends 1 hour shorter than it starts.
