Slovenia faces rising cooling costs and tourism surge amid summer heat

Slovenia is experiencing significant climate-driven shifts in both energy consumption and tourism patterns during the summer of 2026. Data from Open-Meteo indicates that between June 1 and August 10, cooling degree days (CDD) in major cities reached an average of 83.9, which is 67 percent higher than the previous record in 2022 and 2.4 times the five-year average. Nova Gorica saw the most dramatic increase, with a 62 percent rise in CDD compared to its 2022 record. This increased heat load suggests higher potential costs for home cooling across cities like Ljubljana, Maribor, and Celje.

Simultaneously, the extreme heat is driving a surge in tourism within the Julian Alps region. Tourism hubs such as Bled, Bohinj, and Kranjska Gora are reporting an exceptionally strong season. According to Blaž Veber, director of Turizem Bled, the Alps now account for nearly 40 percent of all visits to Slovenia, up from approximately 30 percent in previous years. In Bled, June saw an 8 percent increase in tourists compared to the previous year, contributing to a 10 percent rise in overnight stays for the first half of the year. Key markets driving this growth include the United Kingdom, Germany, and the United States, with increasing interest from Canadian travelers.