Black Sea water temperatures have dropped to 15°C, surprising tourists. The phenomenon is caused by upwelling, but the weather remains warm.

Tourists on the Romanian coast have been taken by surprise by the sudden drop in seawater temperature to 15°C, in contrast to the warm air of over 28-30°C. This phenomenon, known as upwelling, is caused by sea currents and winds bringing cold water to the surface. Although there has been a thermal shock, forecasters predict pleasant weather with summer temperatures and a gradual return to comfortable water temperatures.