According to the fashion website StyleCaster, guests should opt for dark seasonal colors when dressing for a winter wedding. Black, brown and jewel tones are all considered acceptable for winter. Pastels and other light colors tend to look a little too casual during cooler months, but they can be worn to a wedding if the wearer chooses a more dressy silhouette, such as a floor-length gown, to compensate.
Keeping warm during a winter wedding is also important. According to the beauty and style website SheKnows, there are several different options for outerwear that look formal enough for a winter wedding. A structured blazer or bolero jacket are acceptable for both black-tie and cocktail-attire dress codes. Shawls and wraps are also acceptable and tend to look more glamorous than blazers. Thicker fabric also keeps the wearer warmer, so choose an outfit made of heavy silk or wool rather than lightweight cotton.
As with any other wedding or formal event, it is important to check whether there is a dress code before making a final decision about what to wear. If the dress code is black tie, it is best to choose a floor-length evening gown and shoes with closed toes. For a cocktail or semi-formal wedding, a shorter cocktail dress or a nice pantsuit is acceptable.