What clothes should I wear to travel to Naha, Japan in winter?

The average winter temperature in Naha (Okinawa) 17~22℃. The average temperature during the day is 22 degrees Celsius. It is recommended to wear short suits, T-shirts, thin jeans, casual clothes, professional suits and other comfortable clothes made of single-layer cotton and linen fabrics. The average temperature at night is 65438 07℃. It is recommended to wear warm clothes such as suits, jackets, coats, suits and thin sweaters. The cities with the highest daily average temperature in winter in Naha (Okinawa) are Osaka (32℃), Fukuoka (3 1℃) and Nagoya (Aichi Prefecture) (3 1℃). The cities with the lowest daily average temperature in winter in Naha (Okinawa) are Osaka (Osaka) (3℃), Fukuoka (Fukuoka) (4℃) and Nagoya (Aichi Prefecture) (1℃).