According to StyleCaster, tea-length or cocktail dresses in lighter colors are appropriate for afternoon winter weddings. Dresses featuring lighter fabrics are also recommended for afternoon weddings.
It is best to avoid more formal fabrics, such as satin or silk, and opt for fabrics such as jersey or chiffon if the wedding is a casual affair. If an afternoon winter wedding is a formal affair, Global Post suggests sticking to attire such as long gowns and formal cocktail dresses in neutral colors such as black or beige. For men, it is advisable to wear nice khakis and a shirt for casual weddings and a dark suit for more formal afternoon weddings.