How is the soil? First guess is over-watering, but hard to say. 

If it isn't a rust or insect problem, then it needs more water. That may mean adding water or it might mean figuring out why the plants can't use the available water - rootbound? Too fast draining soil? insect damage to roots ?

  The yellowing and holes in the leaves (between the veins) can be a sign of Manganese deficiency...

Is the fig in a smaller pot? If it's possible try to see if the root ball can be lifted out intact. Root bound plants can be starved for water due to inability to soak it up like Jon said. Over-watering can drown the roots causing fairly similar symptoms. 

The fig above is in a large pot. No issues with watering or roots. This is appearing on every fig tree I have. The only thing that has changed in the last few months is the fertilizer I'm using (Scott's all purpose slow release 10 10 10) and being moved to their new location in a backyard with full sun. Here's more pictures with some underside shots. There was a hail storm that hit not too long ago that didn't cause too much damage, so I don't think that is responsible, but I'm not sure. New growth on top seem fine. 

 
 

 

 

 

It seems to be older leaves? could it be due to being moved to full sun, and it's sun burn? At this point remove those leaves and check soil and maybe at slow fertilizer. 

This is Happening to mine also, and I live in NJ.I hope someone can help

It's sunburn.  Those leaves won't recover but the new ones will be fine.

I agree with Don, it's sun burn, just leave them be. As soon as they get really bad remove. The new ones will be fine.

Your trees are short on water and/or fertilizer. Probably mostly short water. In the Dallas area they need water every day and that may not keep them growing. I'd also be concerned with over heating roots. The pots need some shade and may need saucers to help keep the media moist.

Thanks for taking a look y'all. It's been incredibly windy the last few weeks. Have y'all seen wind damage similar to this? Hopefully it's something they can recover from such as the sunburn. It's just too early for rust to start appearing! Any suggestions for a fertilizer that has manganese in it or possible way to buy it as a separate component? I didn't notice any in the fertilizer I was using(Scott's All Purpose 10/10/10). I checked the rootball since I was up potting a few of them anyway and they seemed fine. They've only been in their current pots for about a year. I've been watering every couple days. It's been pretty hot and sunny here lately(upper 80s) with very little rain. The plants did seem a bit light, but not dry to the touch around the roots.

This is suppose to be my little fig oasis, but it's looking more and more like the 50% off area at a nursery.

I've also gone ahead and shaded the side of the pots until I get them partially buried. 

I agree with Don, looks like sunburn. Since the new growth is fine I wouldn't change a thing. The new growth is really you best indicator.

Manganese is dangerous at high concentrations, been there done that. Don't apply any without a soil test.

Organic fertilizers will have trace elements and your manganese in it. Manure, leaf mold, seaweed, alfalfa, etc.

Every 3 days in 80F+ weather and full sun doesn't sound like much. I would think everyday with probably 1-2L at their current state.

A good no hassle way to do it would be to stick them in trays. Give them enough water for it to take a couple days to soak up. Wait maybe a day and repeat. They'll soak up what they need.

Water every other day. Morning sun afternoon shade. Fertilize with Miracle Grow - powder that you mix with water-every 3 weeks.

I'm happy to report it was just sunburn! I've uppotted some, upped my watering schedule, tossed in some slow release fertilizer, and new growth has really kicked off with TONS of figs as well! Thank y'all!

Everything Steve(Fignutty) told you is spot on. He's extremely experienced and grows fabulous figs. I keep my trees in constant water in the summer( bucket, swimming pools). Fast growth can occur and that's how you maximize the formation of figs. Now, when they start swelling I will cut back on the water.

I tend to agree with fignutty, because the same thing happened to one of mine during a dry hot spell, soaking  the soil real good saved the day. but now I also water in some seaweed concentrate (Seasol) once in a while hopefully to avoid a recurrence.