UV Index
UV Index
Today's UV index in Roslyn, United States 
will be up to 7.9, indicating a 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: 2025-05-09
With Roslyn's UV index reaching 7.9, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
The UV index in Roslyn, United States, is usually low to moderate, ranging from 1 in winter to about 6 in summer months. It peaks around midday during sunny days in summer.
Roslyn experiences four distinct seasons: cold winters with snow, mild springs with increasing temperatures and rain, warm and sunny summers, and cool, colorful autumns with decreasing sunlight and temperatures.
Compared to the wider northeastern United States, Roslyn has a typical humid continental climate with similar seasonal changes. Neighboring areas like New York City have slightly milder winters and higher humidity but share the same general weather patterns.
See the UV index hour by hour for Roslyn, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.