The Mar Menor in the southeast of Spain is warmer than ever at over 31 degrees. The consequences of the warming of the sea are described in this article:
Mar Menor – The persistent heat of southeastern Spain has turned the Mar Menor in the Murcia region into a bathtub. At the end of July, a water temperature of 31.25 degrees Celsius was measured in the Mar Menor, as reported by costanachrichten.com. It has not been this warm in the inland sea since the data was recorded.
In some very flat spots in the Mar Menor, temperatures even rose to 35 degrees around midday. This has consequences, not only for the sea creatures. Corals, for example, can only withstand a water temperature of 26 degrees.