The correct answer is - have no change in seasons.
All the places on Earth that lye on the Equator have only one season, that season is summer. But we are not talking about a summer like in the temperate climates where it is hot and dry usually, this is a summer with temperatures around 25-30 degrees, so not very hot, almost daily rainfall around 2-3 o'clock PM, and very big humidity in the air. The temperatures are constant throughout the whole year, and the variations are very small.