
Aim: To investigate the coronary heart disease aggravated by climate variations in Borborema region*. Method: It was used a quantitative non-experimental method in a cross-sectional and exploratory field research, conducted through medical records from João XXIII Hospital and the use of questionnaires to cardiac patients, from February 2010 to February 2012. The survey sample used consisted of 712 respondents, which was the total data collected. For data analysis, it was used the Pearson’s correlation coefficient. It was considered for this study the maximum, minimum, and medium temperatures provided by INMET - the meteorological station of the National Institute of Meteorology, located on the premises of Embrapa - Brazilian Agricultural Research Corporation in the city of Campina Grande, Paraíba (PB), Brazil. The research was registered by the Ethics Committee of UEPB – State University of Paraíba, under number: CAAE 0007.0.133.000-1. Results: The data revealed no relevant statistical correlation between coronary morbidity and climatic variations. Conclusion: Climate variability in the researched area does little influence on the onset and / or worsening of coronary heart disease