Could 30 minutes of sun exposure 5 days post-FUE transplant (1200 grafts) harm my grafts? (Photos)

Minimal sun exposure most likely did not damage your grafts. If you are concerned, follow up with your doctor for an exam.

Sun exposure for 5 minutes will not damage your grafts, for a longer exposure you have to wear an hat, but not too tight and not touching your grafts

Hello, good question.  You have nothing to worry about as far as getting a small amount of sun exposure as you described. That being said, you should be careful with overall sun over exposure and wear a hat or apply sunscreen.

The answer is no, the sun exposure you had will not harm your grafts; however, you have too much scabbing there which should have been washed off in the first day after the surgery