Heat wave in Croatia: record temperatures of up to 38 degrees expected!

Heat wave in Croatia: record temperatures of up to 38 degrees expected!

The heat wave in Croatia is reaching historic proportions, as reported on Friday, June 14, 2025. A record temperature of 36.2 degrees Celsius was recorded in Šibenik, making this June one of the hottest since records began at this measuring station. The Croatian Meteorological Institute has already declared a red warning level for the whole of Croatia to make the population aware of the extreme conditions. On the Adriatic coast, sea temperatures are also rising to record levels.

Some measuring stations reported water temperatures of up to 29.7 degrees Celsius, and temperatures of up to 38 degrees were expected for Split and Dubrovnik over the weekend. These temperatures are not only a challenge for humans and animals, but also have a direct impact on marine organisms. Given the high temperatures, there is a risk of an algae bloom that washes up on beaches as slime.

Forecasts for the weekend

The weather forecast calls for consistently sunny days over the weekend, with temperatures between 28 and 33 degrees on Saturday and a further increase of 1-2 degrees on Sunday. However, a possible short rain shower is forecast in Gorski Kotar on Sunday afternoon. Nighttime temperatures will vary between 13 and 24 degrees, depending on the region.

The weather conditions may change noticeably on Monday. Clouds may move in from the north and local rain showers and thunderstorms cannot be ruled out. The wind will shift to the north, with a strong bora expected in the northern Adriatic.

Insight into the changes in the oceans

The warming of the seas plays a significant role in current weather events. Oceans store over 50 times as much carbon as the atmosphere and absorb 90% of the heat generated by climate change. This increase in ocean temperatures is having a significant impact on marine habitats worldwide and is leading to coral bleaching. There have been several extreme heat waves in recent years, which also threaten marine biodiversity, as high temperatures negatively affect the habitat of many species.

The global average temperature was already 1.45 degrees above pre-industrial levels in 2022, and given such changes, forecasts point to increased extreme weather events in Europe. This could also further aggravate the situation in Croatia, as the heat wave not only poses health risks, but also endangers the Adriatic ecosystem.

The current situation in Croatia is therefore not just a temporary heat wave, but reflects the long-term effects of climate change on the beautiful coastal regions and marine biodiversity, as analyzed by Deutschlandfunk. Further details about the extreme temperatures and warnings in Croatia can also be found at T-Online and Kosmo.