UV Index
UV Index
Today's UV index in Livermore, United States 
will be up to 8.8, indicating a very high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-10
With a UV index of 8.8 in Livermore, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.
The UV index in Livermore typically ranges from low to moderate during winter and spring, and can reach high levels in summer, often between 7 and 10 on sunny days.
Livermore experiences warm, dry summers with temperatures often in the 80s and 90s (°F), and mild, wetter winters with temperatures usually in the 40s to 60s (°F). Spring and fall are transitional with moderate temperatures and less rain.
Compared to the wider Bay Area, Livermore is generally warmer and drier, especially in summer. Neighboring coastal cities are cooler and foggier, while Livermore’s inland location leads to more sunshine and less humidity than places closer to the ocean.
See the UV index hour by hour for Livermore, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.