The hot sun is also a problem here.
I find that plants grown under few hours of direct sun light and mostly indirect sun grow better than those in full sun. They don't get leggy at all, in fact IâÂÂd rather have them leggy because the hot sun stunts their growth.

What plants are you growing? Bitter melon and basils(lemon and christmas) seem to have no problem under full sun. Eggplants once they get big enough can handle it as long as you give them enough water.

If the seedlings and transplants are planted in the sunny side, I sometimes place an object near them or over them to provide shade during the hottest part of the day. The object is removed when the plant is big and strong enough to handle the hot sun. Also, we usually water twice a day.