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UV Index in Philadelphia, US

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Today's UV index in Philadelphia, United States United States will be up to 1.8, 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's tips

Today, the UV index suggests low sun danger (0-2) in Philadelphia, reaching up to 1.8. Remember sunglasses and SPF 30+ on sunny days, and be cautious around reflective surfaces like sand, water, and snow for increased UV exposure.

Philadelphia Weather

Read more here about the climate and sun exposure in and around Philadelphia.

UV Index in Philadelphia

The UV Index in Philadelphia ranges from moderate to high throughout the year. In summer (June to August), the index reaches its peak, often reaching 8 or higher. It is important to protect your skin by wearing sunscreen, sunglasses, and a hat, and by seeking shade during peak sun hours to avoid sunburn and reduce the risk of skin damage.

Weather Seasons

UV index

Philadelphia experiences four distinct seasons. Spring (March to May) brings mild temperatures, ranging from 5 °C to 20 °C (41 °F to 68 °F), with occasional rain showers. Summer (June to August) is warm and humid, with temperatures ranging from 20 °C to 30 °C (68 °F to 86 °F). Fall (September to November) is cool and pleasant, with temperatures ranging from 10 °C to 20 °C (50 °F to 68 °F) and colorful foliage. Winter (December to February) is cold and snowy, with temperatures ranging from -3 °C to 7 °C (26 °F to 45 °F).

Philadelphia's Climate

Compared to its region, Philadelphia experiences moderate sun exposure. It is located in the northeastern part of the United States, where summers can be hot and humid, while winters are cold and snowy. The city receives an average of 206 sunny days per year, which is slightly higher than the U.S. average of 205. However, other cities in the region may have higher or lower sun exposure depending on their location and proximity to bodies of water. It is essential to check the local weather forecast for accurate information on sun exposure in specific areas.

Annual Sun Radiation

The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day 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.