UV Index
UV Index
Today's UV index in Reno, United States 
will be up to 11.3, 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: 2025-07-11
UV index at 11.3 in Reno 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.
The UV index in Reno is usually moderate to high, especially in summer, often ranging from 5 to 9. It peaks around midday during clear, sunny days, reflecting the strong sun exposure typical in the area.
Reno experiences hot summers with temperatures often above 90°F (32°C) and cold winters with occasional snow. Spring and fall are mild and pleasant, but the weather can change quickly due to the city's location near mountains and deserts.
Compared to nearby cities like Sacramento, Reno is drier and has larger temperature swings between day and night. It is cooler than desert cities like Las Vegas but warmer and sunnier than places at higher elevations in Nevada and nearby states.
See the UV index hour by hour for Reno, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.