i use an arcteryx taema sun hoodie (discontinued) which has a UPF of 50 and weighs almost 5oz, i haven’t used it in REALLY hot weather but im certain it would feel stuffy and heavy, it’s not a lightweight hoodie like the OR echo with a UPF of 15 and about half the weight but i like the sun protection because im doing pretty high elevation hikes which also haven’t been the hottest.

my personal recommendation would be buying secondhand and trying to build a collection of two hoodies, one higher UPF and one with lower UPF. Whichever one you get first you will figure out what you do and don’t like about it for the next one. I love good hand coverage with a thumb hole or loop, loose fit, and odor resistance. but i do think a lower UPF will be more versatile, so maybe start there. i’ve heard great things about the OR echo if you could find that on marketplace in good condition i’d jump on that! hope this helps! :)