UV Index
UV Index
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Today's UV index in Austin, United States 
will be up to 4.5, indicating a moderate level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With a UV index reaching up to 4.5 in Austin, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.
Austin, Texas, has a high UV index, particularly in the summer months. It can reach extreme levels, so it's important to be aware of the potential for strong UV radiation.
Austin experiences a humid subtropical climate, with hot summers and mild winters. Spring and autumn are transitional seasons, with temperatures and weather patterns gradually changing from hot to cool and vice versa.
Compared to its region and neighboring countries, Austin is generally warmer and has a higher UV index than many other parts of the United States. However, it is cooler and has less extreme weather than areas in Mexico at similar latitudes.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Austin. It's designed to provide you with a better understanding of the yearly weather and sun exposure.