UV Index
UV Index
Today's UV index in Portorož, Slovenia 
will be up to 7.4, indicating a high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-06-01
With Portorož's UV index reaching 7.4, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
Portorož, Slovenia, often has a UV index ranging from low to moderate, peaking in summer months when the sun is strongest. Winter months see much lower UV levels. The UV index varies through the year with the seasons.
Portorož experiences mild, wet winters and warm, sunny summers. Spring and autumn are transitional with moderate temperatures and varying rainfall. The Mediterranean climate means the weather stays fairly pleasant most of the year.
Compared to much of Slovenia, Portorož has milder winters and warmer summers due to its coastal location. Neighboring Croatia shares a similar Mediterranean climate along the coast, while inland areas have more continental weather with colder winters.
See the UV index hour by hour for Portorož, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.