You might want to try Durban poison it's an African sativa so it can stand up to the heat. They have autoflowering Durban poison the yield says from 75-100 grams per plant which is still a good yield for an auto.
Here is a little snip from their site Durban Poison is the original African Sativa strain. It can be grown indoors, but Durban Poison is known for it's hearty outdoor growth in poor climates and soil. It will strive in sandy soil and will perform even better in good soil conditions. A great marijuana plant for really hot temperatures. It won't get heat stress. A tight bud Sativa with a candy smell and an up high. One of the most reliable early outdoor varieties, it will produce chunky, solid buds even during the worst season. Durban Poison is one of the easiest-to-grow, highest-quality early varieties in the world.