My wedding is in July in the afternoon, I want to have a memorial candle definitely but would a unity candle work outside during the day?
Use a hurricane shield or a container. We had a small memorial candle on our guest book table. We had a little glass container I bought at goodwill for like 75 cents, rocks and a candle.
If you do a unity candle and you use a glass container, just get those long stick matches so you don't struggle/burn yourself trying to light it.
I'd also recommend spending the extra money for dripless, high-quality candles. We just bought cheapies at Michael's and they melted all over the rocks we had in the base. Not a great look.
Watch your veil also while doing this so that it doesn't blow towards the open flame.
Once I attended my friend's wedding at Leonard's Palazzo,NY, they provide both outdoor and indoor wedding facilities. My friend Amber wanted to get married there and she wanted an outdoor wedding with the candle decoration, but they requested her that they can make all the candle decorations if she agrees on indoor wedding then she said yes and the decorations they made were fantastic. So, I would suggest you that if you need candle decoration than go for an indoor wedding.