UV Index
UV Index
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Today's UV index in Miami, 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 Miami, 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 Miami is consistently high due to its tropical monsoon climate and proximity to the equator. On average, the UV index ranges from 9-11 in the summer months and 5-9 in the winter.
Miami experiences two main seasons: a hot and wet summer season and a warm and dry winter season. The wet season typically runs from May to October, while the dry season occurs from November to April. Afternoon thunderstorms are common during the wet season, while the dry season is characterized by cooler temperatures and lower humidity.
Compared to the rest of the United States, Miami has a unique climate that is more similar to that of the Caribbean and Central America. While many parts of the U.S. experience four distinct seasons, Miami's tropical climate means that it has warm temperatures and high humidity year-round. This makes Miami a popular destination for tourists looking to escape colder climates.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Miami. It's designed to provide you with a better understanding of the yearly weather and sun exposure.