UV Index
UV Index
Today's UV index in Scottsdale, United States 
will be up to 11.6, indicating a extreme level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-06-22
UV index at 11.6 in Scottsdale means extreme risk: limit outdoor time especially from 10 a.m. to 4 p.m., actively seek shade, wear protective clothing, broad-brimmed hat, apply SPF 30+ sunscreen every 2 hours, and wear UV-blocking sunglasses. Watch for bright surfaces like water and snow increasing UV exposure.
Scottsdale has a very high UV index, especially in summer, often reaching 10 or more. This means the sun's rays are very strong, making sunburn easy if outside too long. UV levels drop in winter but remain moderate.
Scottsdale is hot and dry in summer, with temperatures frequently above 100°F (38°C). Winters are mild and pleasant, usually between 50°F and 70°F (10°C to 21°C). Rain is rare, mostly occurring in monsoon season during summer months.
Compared to nearby Phoenix, Scottsdale has similar weather because they're close. Both are hotter and drier than many U.S. cities. Scottsdale is sunnier and warmer than many parts of the western U.S. and much hotter than northern states and coastal areas.
See the UV index hour by hour for Scottsdale, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.