I am not sure what is going on here

Hey guys, I am not sure what is going on here with my plants. My smaller ones are getting these spots, but some of the larger ones have them too.  Is this do to sunburn or is it something else?? Lately, I have been trying to harden them, and have been exposing them to more direct sunlight, and since then, this has occured. I don't see any pest in the garden at all, so I am confused. I have cut back on the watering big time for the last few weeks, especially on the larger plants. I maybe water every 4 to 5 days, because the soil stays moist for that long,. I have included 9 pictures or so for you guys / gals to look at. I don't want to lose these, so your insite would be HIGHLY appreciated. The larger plants have just been topped to stimulate shoot growth.
 
other details:
 
hardiness zone 9b
 
average current temp 70-75 degrees.
 
Location, Buenos Aires, Argentina.
 

 

 

 

 

 

 

 

 
 
EvanWilliams1988 said:
Were there any water droplets on the leaves when you put them outside?
 
I have sprayed the leaves with water a couple of times before, but they were not in direct sunlight when I did.
 
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