UV Index
UV Index
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Today's UV index in Manhattan, United States 
will be up to 4.9, 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 4.9 in Manhattan, 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 Manhattan can reach high levels during the summer, with a maximum index of 11. In the winter, the UV index is much lower, typically ranging from 1 to 3.
Manhattan experiences four distinct seasons. Spring brings mild temperatures and blooming flowers, while summer is warm and humid. Autumn features cooler weather and changing leaves, and winter is cold with occasional snowfall.
Compared to its region, Manhattan is generally milder in the winter and cooler in the summer. Nearby countries, such as Canada, have colder winters and shorter summers. Manhattan's climate is influenced by its urban setting and proximity to the Atlantic Ocean.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Manhattan. It's designed to provide you with a better understanding of the yearly weather and sun exposure.