UV Index
UV Index
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Today's UV index in Detroit, United States 
will be up to 4.2, 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 4.2 in Detroit, 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 Detroit varies throughout the year, peaking in the summer months. In June, the index can reach as high as 8-9, while in the winter it can be as low as 1-2.
Detroit experiences four distinct seasons, with hot, humid summers and cold, snowy winters. Spring and autumn bring changing leaves and more mild temperatures. The city is known for its lake effect snow, which can result in significant snowfall in the winter months.
Compared to its region, Detroit's weather is typical of the Great Lakes area. However, it is generally milder than that of neighboring Canada, especially in the winter. Detroit's proximity to the lake can also result in more variable weather conditions than inland cities in the same region.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Detroit. It's designed to provide you with a better understanding of the yearly weather and sun exposure.