UV Index
UV Index
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Today's UV index in St. Petersburg, United States 
will be up to 8.8, indicating a very high 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 of 8.8 in St. Petersburg, it's crucial to safeguard your skin from harmful UV rays. Protect yourself by minimizing sun exposure, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours.
The UV index in St. Petersburg, Florida, averages around 7-8 in the summer, classified as high, and 3-4 in the winter, considered moderate. This makes it important to take sun protection measures during peak daylight hours year-round.
St. Petersburg experiences two main seasons: a hot, wet summer and a mild, dry winter. Summer temperatures often reach the high 80s to low 90s Fahrenheit (around 30 degrees Celsius) with high humidity, while winter temperatures seldom drop below the 50s Fahrenheit (around 10 degrees Celsius).
Compared to its region and neighboring countries, St. Petersburg is warmer and sunnier. While cities in the northern United States and Canada have cold winters with snow, St. Petersburg enjoys a mild climate throughout the year. Furthermore, its neighboring countries in Central America experience tropical climates, but St. Petersburg is less extreme due to its location on the Gulf of Mexico.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in St. Petersburg. It's designed to provide you with a better understanding of the yearly weather and sun exposure.