We are getting married at the beginning of July in Philadelphia. Our venue has both an outside ceremony spot (cute garden area with trees surrounding the spot but no direct shade on guests) and an indoor ceremony spot that is also quite nice (lots of windows and very elegant.) I think an outdoor ceremony would be quite lovely, but when it comes to our guests, I know that people will complain if they are too hot and wonder why we didn't do the ceremony inside. I also don't want to be sweating horribly during the ceremony, and I don't want my family or me to get sunburnt with our pale skin! We are having the ceremony at either 5 or 5:30 p.m., but sunset isn't until about 8:30 that time of year. What temperature would you say is the cut-off? (For example, if it's hotter than a certain temperature, we should do the ceremony inside.) For July 4 in Philly, the temperature could be from the 70s to 100 and it is usually humid. Men will be in suits & women in dresses. Thank you!!