UV Index
UV Index
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Today's UV index in Madison, United States 
will be up to 4.3, 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 4.3 in Madison, 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 Madison, USA, can reach high levels during summer months, with a peak in June. It is important to be aware of the UV index and take necessary precautions to protect your skin and eyes.
Madison has four distinct seasons, with cold, snowy winters and warm, humid summers. Spring and fall offer mild temperatures and changing foliage, making them beautiful times of year to visit the city.
Compared to its region and neighboring countries, Madison experiences more extreme seasonal temperature variations than cities at similar latitudes. For example, its winter temperatures are colder than those in Toronto, Canada, due to its location in the Midwest and the effects of lake-effect snow.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Madison. It's designed to provide you with a better understanding of the yearly weather and sun exposure.