14 degree weather generally appears in early spring and late autumn. At this time, the temperature difference between day and night is relatively large. It's hot at noon and cold in the afternoon. You'd better take a coat with you, put it on in cold weather and take it off in hot weather.
The most appropriate way is to put on about 3 pieces of clothes, with close-fitting clothes inside, sweaters or coats outside, and long skirts or trousers below. If you wear too thick clothes, once it gets hot, you will feel very hot even if you take off your coat. Therefore, close-fitting clothes should be light and thin, and the coat can be thicker, which can increase or decrease according to the temperature.
Extended data:
Dress differences between spring and autumn;
Put on more clothes in spring, and then reduce your clothes when you get used to it. Wear less clothes in autumn and add clothes slowly.
Spring is close to summer and should be hotter than autumn. Clothes are mainly long-sleeved T-shirts and cotton trousers, and skirts are mostly cotton skirts. Autumn is close to winter, and there are signs of turning cold and north wind. So clothes are mainly knitted. Pants are also on the back, such as cashmere pants and thin corduroy. Skirts are also velvet skirts or something.