UV Index
UV Index
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Today's UV index in Jersey City, United States 
will be up to 5.8, 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 5.8 in Jersey City, 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.
The UV index in Jersey City can reach high levels during the summer, with a value of 9 or more on sunny days. This is a result of the city's location in the mid-latitudes, facing the Atlantic Ocean.
Jersey City experiences four distinct seasons, each with its own weather characteristics. Spring brings mild temperatures and occasional showers, while summer is typically warm and humid. Autumn features crisp, cool weather, and winter brings cold temperatures and the possibility of snow.
Compared to its region and neighboring countries, Jersey City has a milder climate. Its coastal location helps to moderate temperatures, making it warmer than inland areas during the winter and cooler in the summer. In contrast, nearby Canada and northern states in the US experience colder temperatures and more snow in the winter months.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Jersey City. It's designed to provide you with a better understanding of the yearly weather and sun exposure.