During sprintime months, the sun's angle in relation to the earth begins to shift and the heat energy hits the Cancun area at a more direct angle; average temperatures increase, reaching about 91° farenheit (33° celsius) in May.
In July and August,average temperatures reach their peak of 93° farenheit (34° celsius).
As the sun angle shifts back toward the southern hemisphere, temperatures drop, with major drop in October and November after the sun has passed into the southern hemisphere.
Nearly constant ocean temperatures help to moderate air temperatures to within about 10° (6° celsius) throughout the year. Nights from December to March can feel a bit chilly due to the ocean breeze.