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Las Vegas weather in August 2025
Expect 39°C daytime maximum temperatures in the shade with on average 12 hours of sunshine per day in Las Vegas in August based on long-term weather averages. There is usually 3 days with some rainfall and 11 mm of average monthly rainfall in August.
- 39°C max day temperature
39 - 12 hours of sunshine per day
- 3 days with some rainfall
3 - 24°C min night temperature
24 - 13 hours of daylight per day
13 - Very High heat & humidity
VH - 11 mm of monthly rainfall
11 - 10 (Very High) UV index
10
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Recommended for Nevada
The August weather guide for Nevada (Las Vegas) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about Las Vegas
How hot is it in Las Vegas in August?
Daytime temperatures usually reach 39°C in Las Vegas in August with very high heat and humidity, falling to 24°C at night.
How sunny is it in Las Vegas in August?
There are normally 12 hours of bright sunshine each day in Las Vegas in August - that's 88% of daylight hours.
Does it ever rain in Las Vegas in August?
There are usually 3 days with some rain in Las Vegas in August and the average monthly rainfall is 11mm.
Las Vegas August sunrise & sunset times
Browse the sunrise and sunset times for Las Vegas in August 2025. Select a month to view Las Vegas sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 04:48 | 18:45 |
| Saturday, 16th August 2025 | 05:00 | 18:29 |
| Sunday, 31st August 2025 | 05:12 | 18:09 |
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