UV Index
UV Index
Today's UV index in Jersey City, United States 
will be up to 8.1, indicating a very high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-21
With a UV index of 8.1 in Jersey City, 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.
Jersey City’s UV index ranges from low in winter to high in summer, often reaching around 7 to 8 on sunny days. The highest UV levels happen in late spring and early summer. UV exposure is generally strongest between 10 a.m. and 4 p.m.
Jersey City experiences four distinct seasons: cold winters with occasional snow, warm and humid summers, and mild springs and autumns. Spring and fall bring moderate temperatures with some rain, while summer can be hot and rainy. Winter temperatures often drop below freezing.
Compared to the wider northeastern U.S., Jersey City’s weather is typical with hot summers and cold winters but is slightly milder than inland areas due to its proximity to the Atlantic Ocean. Neighboring New York City shares very similar weather patterns, while further inland areas like Pennsylvania tend to have colder winters.
See the UV index hour by hour for Jersey City, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.