Water kept in sunlight gets heat from sun and is evaporated. But how does water kept under the shade of a tree also gets evaporated? Explain.

Water kept in sunlight gets direct heat from the sun and thus it gets evaporated. But water kept under the shade of tree also gets evaporated even though it is under shade and does not receive direct sunlight. This is because during daytime all the air surrounding the tree also get heated up, so the warm air provides heat for evaporation of water kept under the shade of a tree but it occurs very slowly.