UV Index
UV Index
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Today's UV index in Florence, Italy 
will be up to 5.2, 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 5.2 in Florence, 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 Florence, Italy, can reach high levels during the summer months, with a maximum index of 8 or 9. In the winter, the UV index is much lower, typically around 2 or 3.
Florence has four distinct seasons. Spring (March to May) is mild and wet, with temperatures ranging from 10°C to 20°C. Summer (June to August) is hot and dry, with temperatures often exceeding 30°C. Autumn (September to November) is cool and crisp, with temperatures between 15°C and 25°C. Winter (December to February) is chilly and damp, with temperatures rarely dropping below freezing.
Compared to its region and neighboring countries, Florence has a Mediterranean climate, with hot, dry summers and mild, wet winters. Inland areas of Tuscany, such as Siena and San Gimignano, are slightly cooler and drier than Florence. Nearby countries, such as Switzerland and Austria, have a continental climate with hotter summers and colder winters, while France and Spain have a more temperate climate.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Florence. It's designed to provide you with a better understanding of the yearly weather and sun exposure.