An overcoat is excellent when worn with a hat because it keeps you warmer and because it's a classic garment, it is stylish, a hat always works well together.
At what temperature should you wear an overcoat?
as far as wearing an overcoat (ie a wool coat over a suit jacket that's already over a dress shirt), you should have one if it's in the 40s or below. if it's 50-60, you probably won't need one, especially since you won't be outside much.
Are overcoats for winter?
An overcoat is a must-have in every men's wardrobe. If you want to stay warm and stylish on cold winter days, it is essential to have a carefully selected coat collection at home. Be prepared for cold, snowy, windy but also for sunny and warm days in fall, winter and spring.