UV Index
UV Index
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Today's UV index in Las Vegas, United States 
will be up to 2.5, indicating low risk of harm from the sun's UV rays for the average person. Check our tips for today to make sure you're safe in the sun.
Today, the UV index suggests low sun danger (0-2) in Las Vegas, reaching up to 2.5. Remember sunglasses and SPF 30+ on sunny days, and be cautious around reflective surfaces like sand, water, and snow for increased UV exposure.
Read more here about the climate and sun exposure in and around Las Vegas.
The UV index in Las Vegas can be very high throughout the year, due to its location in the desert. In the summer months, the index often reaches extreme levels, ranging from 10 to 14 (very high to extreme). It is important to take precautions and protect your skin by wearing sunscreen, hats, and sunglasses, especially between 10 am and 4 pm when the sun is strongest.
Las Vegas experiences a hot desert climate with long, extremely hot summers and short, mild winters. Summer temperatures can soar over 100 °F (38 °C) and sometimes surpass 110 °F (43 °C). Winters are generally mild, with daytime temperatures averaging around 60 °F (16 °C) and dropping to the 30s °F (around 0 °C) overnight. Spring and fall offer more pleasant weather, with temperatures ranging from the 70s °F (20s °C) to the 80s °F (around 30 °C).
Compared to its surrounding region, Las Vegas experiences more intense sun exposure due to its desert location. The arid landscape amplifies the sun's effects, resulting in higher UV radiation and faster dehydration. It is vital to remain hydrated and protect yourself from the sun, not only in Las Vegas but also in nearby areas such as Death Valley and the Mojave Desert.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in Las Vegas. It's designed to provide you with a better understanding of the yearly weather and sun exposure.