What's the weather like in London in February? What clothes are suitable for wearing? Are food, clothes and other things expensive there?

This friend is as old as me. I live in London. For lunch and dinner, what kind of food can you eat in this convenience store is economical, that is, eat all kinds of food, such as sandwiches, noodles, water and drinks, and fruits, pick up what you want and pay at the cashier. Generally, a person's weight is 8 19 kg, which is no problem. If it wasn't for dinner with friends. As for the weather, it was cold and rainy in London from 12 to February of the following year, but sometimes it was warm and not too cold on sunny days, and the light time was very short, only 7 or 8 hours. Clothes are cold, but not as cold as Heilongjiang. A thick coat is fine, autumn clothes are fine, pants are fine, and an extra pair of warm autumn pants is fine. Clothes worn by people here are also fine. As long as it is not in the city center or tourist attractions, the prices of food and clothes are generally not very expensive. The clothing store I have been to is 20 pounds cheaper, but you can buy clothes here. You can go to Oxford Street and souvenir shops. This is also a souvenir to remind you that if there is no coach in London, you should take the subway. I suggest you look at the subway map here before you come. Generally speaking, things here can be converted into RMB according to the economic conditions of the British. Generally speaking, it's too expensive. I know these are not necessarily correct. Let's make a reference. I hope I can help you. Oh, there's a little detail. I don't know what Italian outlets are like, but British outlets are different from China. It is better to pay attention to this. The voltage here is 240 volts. Pay attention to the time difference, an umbrella is a must.