UV Index
UV Index
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Today's UV index in New York City, United States 
will be up to 5.5, indicating moderate 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.
With a UV index reaching up to 5.5 in New York 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.
Read more here about the climate and sun exposure in and around New York City.
The UV index in New York City typically ranges from moderate (3-5) to high (6-7) during the summer months. It is important to protect your skin by wearing sunscreen and seeking shade during peak UV hours, usually between 10 am and 4 pm. The UV index is lower during the winter, ranging from low (1-2) to moderate (3-4).
New York City experiences four distinct seasons: spring, summer, autumn, and winter. Spring (March to May) brings mild temperatures, ranging from around 10-20 °C (50-68 °F), with occasional rain showers. Summer (June to August) is hot and humid, with temperatures averaging 25-30 °C (77-86 °F). Autumn (September to November) is a pleasant time, with temperatures ranging from 15-25 °C (59-77 °F) and colorful foliage. Winter (December to February) is cold, with temperatures averaging around -1 to 4 °C (30-39 °F), and occasional snowfall.
Compared to its region, New York City experiences similar weather patterns. However, due to its coastal location, it can be affected by oceanic influences, resulting in milder winters and cooler summers compared to areas further inland. This also means that New York City has a higher chance of experiencing fog and sea breezes. The city's latitude gives it a moderate amount of sun exposure, with longer daylight hours during the summer and shorter hours during the winter.
The chart above displays the Shortwave Radiation Sum (MJ/m²) for each day of the last year in New York City. It's designed to provide you with a better understanding of the yearly weather and sun exposure.