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UV Index in Philadelphia

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Today's UV index in Philadelphia, United States United States will be up to 8.3, indicating a very 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.


Today's tips

With a UV index of 8.3 in Philadelphia, 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.

Philadelphia's UV Index

The UV index in Philadelphia can reach a high of 9 during peak summer months, such as July and August. On average, the city experiences a UV index of 3.7, which is considered moderate.

Weather Seasons

UV index

Philadelphia has four distinct seasons, with hot, humid summers and cold, snowy winters. Spring and fall offer mild temperatures and changing leaves, making them popular times to visit.

Philadelphia's Climate

Compared to its region and neighboring countries, Philadelphia has a more moderate climate. While still experiencing four seasons, the city sees milder winters than more northern areas like Canada, and less rainfall than countries such as England.

Annual Sun Radiation

The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Philadelphia. It's designed to provide you with a better understanding of the yearly weather and sun exposure.


* This page's content about the UV index in Philadelphia (United States) is for educational and informational purposes only. The developers and data providers are not liable for the accuracy, reliability, or availability of the information. The information is not a substitute for professional medical advice, and the developers and data providers are not medical professionals. Seek advice from a qualified health provider for any medical concerns, and do not disregard medical advice or delay seeking it based on the information provided on this site.