May I know whats the standard of living at Shantou and what sort of clothing do the pple wear

Well, it is generally-acceptable. About CNY25 is enough for daily necessity cost. So don't worry!
These days, it is cool there. You can take along the spring and autumn clothes, such as Long John, thin sweater and your windbreaker. And it rains a lot these days, so if you go there, the rainy coat is also necessary.