SunticUV index in Las Vegas today
Las Vegas sits in the Mojave Desert, with clear skies and extreme summer UV most visitors underestimate. The only accurate figure is a live one for your exact spot: Suntic shows Las Vegas's real-time UV index and a 10-day forecast.
Sun and UV in Las Vegas
Very dry air and few clouds give Las Vegas relentless sunshine, and summer midday UV reaches the very high to extreme range. The desert heat distracts from the fact that UV is punishing long before and after the hottest hours. Even spring and autumn deliver high UV on the typically cloudless days.
When is UV highest in Las Vegas?
UV is highest around solar noon (broadly 10am to 4pm) and strongest across May to September. The exact peak shifts with the season and the day's weather. For more on this, see when is the sun strongest.
The UV index scale
| UV index | Risk level | What to do |
|---|---|---|
| 0-2 | Low | Minimal risk. Safe to be outside; sunglasses on bright days. |
| 3-5 | Moderate | Take care at midday. Use SPF 30+, a hat and shade around noon. |
| 6-7 | High | Protection needed. SPF 30+, cover up, seek shade 10am-4pm. |
| 8-10 | Very high | Extra protection. Avoid the sun at midday; SPF, clothing and shade are essential. |
| 11+ | Extreme | Take all precautions. Unprotected skin can burn quickly; stay inside or fully covered at peak hours. |
UV index categories follow the World Health Organization / US EPA scale.
Staying sun-safe in Las Vegas
- Pool decks and bright pavement reflect extra UV around the city.
- Extreme summer UV burns unprotected skin fast, so favour early morning or evening outdoors.
- Day trips to higher-elevation spots like Red Rock raise UV further.
Wherever you are, the basics hold: use broad-spectrum SPF 30+, seek shade around midday, cover up, and never let your skin burn. See our sunburn prevention tips.
See Las Vegas's live UV index
Suntic turns the live UV index into personal safe-sun times, sunscreen reminders and vitamin D tracking on your iPhone.
