UV Index
UV Index
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Today's UV index in Pittsburgh, United States 
will be up to 7.8, indicating a high 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 Pittsburgh's UV index reaching 7.8, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours between 10 a.m. and 4 p.m., when UV rays are strongest.
The UV index in Pittsburgh can vary throughout the year, with the highest levels typically seen in the summer months. On average, the city sees UV index readings of 3 or higher during around 6 months of the year, with readings reaching as high as 9 on occasion.
Pittsburgh experiences all four seasons, with cold, snowy winters, mild springs, warm, humid summers, and crisp, colorful falls. Spring can be unpredictable, with temperatures that can vary greatly from one day to the next. Summers are generally warm and humid, with occasional heat waves. Fall brings cooler temperatures and colorful foliage, while winters can be cold and snowy.
Compared to its region and neighboring countries, Pittsburgh has a relatively temperate climate. The city is located in a humid continental climate zone, which is characterized by warm summers and cold winters. This is in contrast to the more extreme temperatures seen in some neighboring regions and countries. For example, cities located further north in Canada can experience much colder winter temperatures and heavier snowfall than Pittsburgh.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Pittsburgh. It's designed to provide you with a better understanding of the yearly weather and sun exposure.