穿衣指数
输入温度（℃）看怎么穿。北方冬冷夏热、南方湿冷湿热，温差大记得分层。
中文介绍
在中国穿衣服，关键看两件事：实际温度和「体感」。同样的 5°C，北方（北京、东北）是干冷，太阳下反而暖和；南方（上海、成都、广州）是湿冷，湿度让寒意钻进骨头，同样的温度要穿得更厚。夏天则相反，北方干热暴晒、南方湿热黏腻。所以「看温度穿衣服」要结合城市和湿度。
实用的办法是分层：贴身一层吸汗（纯棉或速干），中间一层保暖（抓绒或羊毛），外层防风防雨（冲锋衣或羽绒）。这样进出室内外、爬山上车都能灵活增减。国内商场、地铁、高铁空调普遍偏冷，夏天也建议带件薄外套。本工具按体感温度给出参考，出行前看当地实时气温更准。
常见问题
中国夏天穿什么？
南方湿热穿短袖短裤透气；北方干热要防晒、戴帽；室内空调强，备薄外套。
中国冬天有多冷？
北方零下且干冷（哈尔滨可 -20°C），南方 0–10°C 湿冷；北方室内供暖、南方无暖气，南方室内更冷。
怎么穿最灵活？
分层：吸汗内层 + 保暖中层 + 防风外层，进出空调、上下车随时增减。
English
Dressing in China comes down to two things: the actual temperature and how it feels. At the same 5°C, the north (Beijing, the northeast) is dry-cold and can feel warm in the sun, while the south (Shanghai, Chengdu, Guangzhou) is damp-cold, and the humidity makes it bite deeper — so you dress thicker at the same number. Summer flips it: the north is dry-hot and punishing in the sun, the south is humid and sticky. That's why dressing "by temperature" needs the city and humidity too.
The practical trick is layering: a sweat-wicking base layer (cotton or quick-dry), a warm mid layer (fleece or wool), and a windproof/waterproof shell (softshell or down). That way you can adjust going in and out of air conditioning, up mountains, or onto a train. Air conditioning is strong in Chinese malls, metros and high-speed rail, so carry a light jacket even in summer. This tool gives a feels-like reference; check the local forecast before you head out.
FAQ
What should I wear in a Chinese summer?
The humid south calls for breathable T-shirt and shorts; the dry north needs sun protection and a hat; strong indoor AC means a light jacket.
How cold is a Chinese winter?
The north is sub-zero and dry (Harbin can hit -20°C); the south is 0–10°C and damp. Northern indoors are heated, southern ones are not, so the south feels colder inside.
What's the most flexible way to dress?
Layer: sweat-wicking base + warm mid + windproof shell, so you can add or remove going in and out of AC or transport.