UV Index
UV Index
Today's UV index in Henderson, United States 
will be up to 9.8, 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: 2025-05-09
With a UV index of 9.8 in Henderson, 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.
Henderson has a UV index that can reach very high levels, especially in the summer months, often between 7 and 11, which means the sun’s rays are strong and can be intense during midday.
Seasonally, Henderson experiences hot summers with temperatures often above 90°F (32°C), mild winters with temperatures around 40-60°F (4-15°C), and low rainfall mostly in the winter and spring months.
Compared to nearby cities like Las Vegas, Henderson has similar desert climate patterns with hot, dry weather. It is drier and hotter than many places in the western U.S. and neighboring states like California experience more coastal, cooler conditions.
See the UV index hour by hour for Henderson, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.