How Hot Is Too Hot for Outdoor Ceremony?

We went to a wedding in July and while it was a covered patio, it was still open to outside and very hot and humid. They had the bar open before the ceremony for cocktails, beer, soda and water so guests could try to stay cool during the ceremony. But I don't think 80 and in a shaded area will be bad. Providing water would be nice but not necessary. I also don't think guests would want to put bug spray on their wedding attire. Maybe check and see if the venue can fog/spray that area the day before to help keep bugs away

Yes to water. Maybe to fans. I would see if you can get fans from somewhere that you could return them if they weren't used before committing to them. If it's 80 degrees and dry, water will be plenty to keep people comfortable. If it's 80 degrees at muggy, you would want to consider fans.

Don't assume that just because some individuals are fine with 80 degrees outside that everyone will be.

If you have any elderly guests, any pregnant guests, or any guests with underlying health conditions, this could still be very uncomfortable for them.

As someone who will get bit by every single bug in the vicinity, I would recommend bug repellant. You have a very outdoorsy, wooded area. You could consider wipes, this is what I prefer to use so I can control exactly where the repellant goes (so it isn't on my clothes.) The people who need it will use it.

I agree with others that this is likely to vary based on several factors like humidity and how much shade there will be at your ceremony time. If the site is only partially shaded, there can be a HUGE difference in temperature/comfort in the shade vs. out. Daughter's wedding was in January, and after a week of rain, we were thrilled they had a gorgeous sunny day. BUT, even though it was only 78 degrees and low humidity (So Cal) we were in direct sun and I started to get sweaty.... Poor husband in his black suit was trying not to drip. It was okay, but if it had been even a little warmer or the ceremony had lasted much longer (it was < 30 min), I think some people would definitely have been uncomfortable. Given the best guesses about the amount/location of shade, humidity, length of ceremony, etc., I'd probably err on the side of caution and do whatever you can to help ensure guests are comfortable.

I think you should be fine it's going to feel like a July 75 or 70 degree weather

80 degrees would be my cut off. But what time is your wedding? 80 degrees as the sun is starting to set is much different than 80 degrees at 2:00 p.m. when the sun is glaring down on you! Based on the description of your venue, I think you will be just fine. Also, your guests will likely check the weather beforehand and dress accordingly.

I think 80 degrees is perfect! I also had an October wedding in Virginia and although it was indoors, the high was near 80. I attended an August wedding once, outdoors in full sun in the mid-afternoon with a high of 90, and THAT was way too hot.

My sister's wedding was over 105, and whilst very, very hot was totally manageable! So I think 80 would be fine. Although, I've heard people say that it's not the heat, it's the humidity that get's you, and this was a dry heat so take what I'm saying with a grain of salt, haha!