RESUMOo menor acúmulo, no entanto, apresentou os resultados mais reais, pois preconiza as limitações impostas pela temperatura ótima e as temperaturas basais inferior e superior da cultura. Palavras-chave: graus dia, Mangifera indica L, temperatura do ar, Tommy Atkins THERMAL NEED OF MANGO TREES IN THE NORTHEAST OF THE STATE OF PARÁ, BRAZIL ABSTRACTThe aim of this study was to estimate the thermal need of mango trees 'Tommy Atkins' during the phenological phases of the reproductive period in the northeast of the state of Pará, Brazil. It was conducted monitoring of meteorological variables and phenological monitoring in a mango orchard in the city of Salinópolis, Pará, during the season 2015/2016, which occurred