Balkans face extreme heat wave, temps near 40 °C in Serbia and Croatia

heat wave Serbia temperatures Croatia heat Krško nuclear plant drought water delivery

A severe heat wave is sweeping the Balkans. In Serbia, maximum temperatures are forecast to reach 40‑41 °C, with isolated thunderstorms and hail expected in Vojvodina. Dr Milan Dimitrijević warned that the extreme heat raises the risk of dehydration, heat‑stroke and heat‑related illness, especially for children, the elderly and chronic patients, and advised regular fluid intake and avoiding direct sun exposure.

In Slovenia, short‑lived thunderstorms have brought heavy rain and a brief temperature drop, but the heat wave continues with daily highs above 35 °C. Croatia is also experiencing very high temperatures, ranging from 34 °C to 40 °C, with local thunderstorms possible in inland areas. Health experts recommend setting air‑conditioners to a higher temperature rather than keeping them on continuously.

The drought accompanying the heat wave has strained water supplies. Firefighters of the DVD Dobrinj brigade in Croatia have been transporting water to livestock, delivering about 220 m³ in recent days. Meanwhile, the Krško Nuclear Power Plant in Slovenia is operating at full capacity but warned that high river temperatures could force a reduction in output or a temporary shutdown.

Overall, the heat wave is affecting large parts of the region, prompting public‑health advisories, emergency water deliveries, and concerns for energy infrastructure.

Entities: Adriatic coast · Croatia · Croatian Meteorological Service · DVD Dobrinj fire brigade · Dr. Milan Dimitrijević · Krško Nuclear Plant · Krško Nuclear Power Plant · Republic of Croatia · Serbia · Serbian Meteorological Service · Vukovar · Vukovar Ada

Claims

What the coverage asserts, and how well corroborated each claim is across sources.

[○ 1 SOURCE] The approaching cold front will bring only brief local showers and limited cooling in Serbia. (Serbian weather forecast)
[○ 1 SOURCE] Croatia expects daytime highs between 34 °C and 40 °C, with a north‑westerly wind on Friday expected to lower temperatures by several degrees. (Croatian meteorological service forecast)
[○ 1 SOURCE] The heat wave raises the risk of dehydration, sunstroke and heat‑stroke, especially for children, the elderly and chronic patients. (Health warning by Dr. Milan Dimitrijević)
[○ 1 SOURCE] The Krško nuclear plant is operating at full power but may need to reduce output or shut down if river temperatures remain high. (Krško nuclear plant operators)
[○ 1 SOURCE] Dr Milan Dimitrijević advises regular fluid intake and avoiding direct sun exposure to prevent heat‑related illnesses. (medical advice)
[○ 1 SOURCE] Isolated thunderstorms with hail are forecast for Vojvodina on Thursday evening. (Serbian weather forecast)
[● 2 SOURCES] Temperatures in Serbia are expected to reach 40‑41 °C by Friday. (Serbian heat wave forecasts)
[○ 1 SOURCE] River levels on the Danube and Sava have fallen to historic lows, threatening cooling water supplies for nuclear plants. (Statements by Zoran Đuroković, director of Croatian Waters)
[○ 1 SOURCE] The heat wave raises the risk of dehydration, heat‑stroke and heat‑related illness, especially for children, the elderly and chronic patients. (health warning)
[○ 1 SOURCE] Krško Nuclear Power Plant is operating at full power but may need to reduce output or shut down if river temperatures remain high. (operational warning)
[● 2 SOURCES] Croatia expects daytime highs between 34 °C and 40 °C, with local thunderstorms possible in inland areas. (weather forecast)
[○ 1 SOURCE] DVD Dobrinj fire brigade has delivered about 220 m³ of water to livestock during the drought. (operational report)