UV Index
UV Index
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Today's UV index in Milwaukee, United States 
will be up to 5, 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 5 in Milwaukee, 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 Milwaukee, USA, can reach a high of 8 during summer months, while the rest of the year it usually ranges from 2 to 6. This index measures the strength of the sun's UV rays, with higher numbers indicating stronger rays.
Milwaukee experiences four distinct seasons. Spring brings mild temperatures and occasional showers, while summers are generally warm and humid with highs around 80°F (27°C). Autumn sees falling temperatures and vibrant foliage, and winters are cold and snowy with temperatures often below freezing.
Compared to its region and neighboring countries, Milwaukee's climate is relatively temperate. Colder than southern states but milder than northern Canadian provinces, it receives more rainfall and snow than many of its Midwestern neighbors. The city's proximity to Lake Michigan also significantly influences its weather patterns.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Milwaukee. It's designed to provide you with a better understanding of the yearly weather and sun exposure.