UV Index
UV Index
Today's UV index in Karlovac, Croatia 
will be up to 6.2, 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: 2025-05-09
With Karlovac's UV index reaching 6.2, 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.
The UV index in Karlovac varies seasonally, typically reaching high levels of 7 to 9 during summer months and lower levels around 1 to 3 in winter. Spring and autumn see moderate UV indexes around 4 to 6.
Karlovac experiences four seasons: warm summers often around 25-30°C, cold winters with temperatures around 0°C, and mild springs and autumns. Rainfall is spread throughout the year but peaks in late spring and early autumn.
Compared to the wider region, Karlovac has a more continental climate with colder winters than coastal Croatia. Neighboring countries like Slovenia and Bosnia also have similar seasonal weather, but Karlovac tends to have more temperature extremes.
See the UV index hour by hour for Karlovac, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.