UV Index
UV Index
Today's UV index in Mostar, Bosnia and Herzegovina 
will be up to 7.8, 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: 2025-06-16
With Mostar's UV index reaching 7.8, 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.
Mostar’s UV index is typically high during summer, often reaching levels of 7 to 9, indicating strong sunlight. In winter, the UV index drops to around 1 or 2, showing much weaker sun exposure.
Mostar experiences hot, dry summers with temperatures often above 30°C (86°F). Winters are mild and wetter with temperatures generally between 0°C and 10°C (32°F to 50°F). Spring and autumn bring moderate temperatures and occasional rain.
Compared to other parts of Bosnia and Herzegovina, Mostar is warmer and sunnier. It has a Mediterranean climate unlike the colder, snowier regions in the north and mountains. Neighboring Croatia shares similar coastal weather but Mostar is hotter inland.
See the UV index hour by hour for Mostar, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.