UV Index
UV Index
Today's UV index in Glendale, 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: 2025-06-21
UV index at 11.6 in Glendale 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.
Glendale, United States, typically has a UV index that ranges from moderate to very high, especially during the summer months. Sun exposure is strongest around midday in spring and summer.
Glendale experiences warm, dry summers and mild, wetter winters. The hottest months are usually July and August, while December and January tend to be cooler with occasional rainfall. Seasonal changes are noticeable but not extreme.
Compared to the wider southern California region, Glendale's weather is similar, with dry summers and mild winters. It is generally warmer and drier than northern U.S. states but less hot than desert areas like Arizona. Neighboring cities share much of the same climate.
See the UV index hour by hour for Glendale, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.