UV Index Slovenia
According to the WHO, the average daily ambient ultraviolet radiation in Slovenia is 2,256 J/m² (joules per square metre).
UV radiation overview
Slovenia is a small Central European country spanning roughly 45.4–46.9°N, wedged between the Alps, the Adriatic, the Pannonian Basin, and the Dinaric karst. Despite covering only about 20,273 km², the territory crams together four distinct landscapes: the Julian, Kamnik–Savinja and Karavanke Alps in the north, the limestone Karst plateau, a short 46.6 km Adriatic coastline at Koper, and the lowland Pannonian east around the Mura and Drava rivers.
The Julian Alps culminate in Triglav at 2,864 m, Slovenia's highest peak, where thinner atmosphere and frequent snow cover produce some of the strongest UV exposure in the country during late spring and summer. The Karst plateau bridges Mediterranean and continental regimes, while the Pannonian east receives clearer, more continental skies. The Slovenian Environment Agency (ARSO) publishes daily UV index forecasts, reflecting how Mediterranean, Alpine and Pannonian climates are compressed within less than 250 km.
Slovenia sits at #159 of 191 in the WHO's global ambient-UV ranking with about 2,256 J/m² of average daily UV, around the 17th percentile worldwide.
UV Radiation in Slovenia
This ranks 159 out of 191 countries measured worldwide — where 1 receives the most UV radiation.
Source: WHO Global Health Observatory (1997–2003)