The report characterizes the extreme bioclimatic sensations due to heat in the province of Mayabeque. The subject is of great importance due to its direct and indirect impacts on people's comfort and health. For this purpose, the bioclimatic indicator called Intense Heat Condition (CCI) is used, generated from the thermal sensations of people at 7 am and 1 pm, in its two modalities, without wind (CCIcv) and with wind (CCIcv). The climatic data were taken for the period 1991 - 2010, in three meteorological stations representative of the climatic conditions of the territory: Casablanca, Bainoa and Melena del Sur. It was found that the CCIs are a characteristic feature of the summer months in the province, with greater frequency towards both coastal areas. In addition, CCIs occur on isolated days or in spurts of up to 6 days. To the north of Mayabeque the most significant tendencies to the increase of the CCI are registered, and the points of change are reported at the end of the 90s and the beginning of the 2000s.