The golf course pavilion.
I would go with the golf attire, slacks and a collared shirt. dont stress you will be OK. just have fun and always smile.
It’s a fundraiser, so don’t spend any money on outfits - donate that money. September in the Northeast… probably slacks and a collared shirt. Have fun.
Short shorts no bra
Polo (with collar) and slacks or khaki’s would be most comfortable
My wife does this she wear golf shoes snorts hope speel it right and top maybe pink sun visor.
easy check with a tournament .gotta remember if you’re out in weather he can always change ,and sometimes you can leave your post so think a little
Ask the organizer what would be appropiate. At the charity golf events I have gone to, the volunteers are usually wearing polo shirts embroidered with the event logo and golf shorts or slacks depending on the weather.
Underwear optional
shorts,collared shirt conferable shoes and a visor
you won’t go wrong with khakis and a collared shirt.