It got up to 118 degrees yesterday. I have baby figs growing in black 1/2 gallon pots on cement. I was on vacation for a long time and thought they would be toast, but they are doing really great with explosive growth. They are in almost full sun all day long. I do have a bit of afternoon shade on the potted plants. I have one in ground panache in full sun and no afternoon shade and it is growing like crazy too. I watered the pots 2 times a day, about 10 minutes at 7am and 7pm on a drip. I water the In ground tree once a day, but will be cutting back to once every 3 days or every week since I'm back. The humidity isn't that bad right now, but it will start getting there real soon with the monsoons. The problem for my figs isn't the sun or heat, but sometimes the winds blow things over. Maybe if your trees aren't used to the sun and heat, then they suffer. Also, for in ground trees, it's important to water deeply and infrequently so that the roots will grow down which helps them better to cope with stress.