I have been invited to a wedding in the middle of May in Cape Cod. The wedding is at 4pm in the afternoon and the ceremony is going to be held in a tent outside the reception venue.
The invitation doesn't specify attire but based on the wording that I've seen for invitations on the Knot, it appears to be formal (with wording such as "request the honour of your presence" and spelling out of the date and time), but honestly, I've never received an invitation that did not have the more formal wedding. Should I go strictly by the invitation? I'm afraid I would feel overdressed if it ended up not being so formal. My mother didn't seem concerned about the formality of the wedding. She is planning on wearing a pantsuit.
Also, I have read that dresses above the knee are inappropriate for a wedding. However, I've seen a lot of women wear dresses that fall just above the knee. Is this okay?