Weather in June
Often painfully hot and humid. Thin, airy clothes a must!  Also the season of rain and storms so make sure you have waterproofs which are widely available and cheap at convenience stores. It's extremely important to keep hydrated – drink lots and lots of water.

Shanghai Cuisine
As an international city, Shanghai offers all kinds of cuisines from around the world. Of course, the majority of restaurants offer Chinese food at reasonable prices.
Chinese food is famous for having Eight Major Cuisines: Sichuan, Zhejiang, Hunan, Jiangsu, Shandong, Fujian, Cantonese and Anhui.
Not surprisingly, Shanghai Cuisine, also known as Ben Bang, is not one of the Eight Major. Give it a try, you may enjoy it but Westerners often complain that it's too sweet and oily. There are certainly many better gastric options available.

Geographic location
Shanghai literally means the city by the sea. It's actually about a two hours drive from the coast and the likelihood is that you won't find yourself going to the beach often, if ever!
The city is divided into two parts by the Huangpu River: Puxi (west of the Huangpu River) and Pudong (east of the Huangpu River). Puxi is the older part of the city and hosts the majority of shops, restaurants and museums. Pudong is the modern part, and is recognized for its rather unusual yet extremely impressive high-rises such as Shanghai's tallest building, the Jinmao Tower, which looks like something out of Batman, and the Oriental Pearl Tower, which looks like it belongs on another planet!
Shanghai lies at 31°14' north latitude and 121°29' east longitude. Neighboring provinces Jiangsu and Zhejiang are two of China's most wealthy provinces, if not the most beautiful.

Currency
Please take some cash with you! Many Chinese stores and supermarkets don't accept credit cards. Coins are also handy, as many automatic vending machines take coins. The price level in Shanghai is rather low compared to the West, so usually you'll get more for your money. 
Foreigners can change foreign currencies in banks with their passports or other official documents.
With the original receipt and passport, you can change the left RMB into the home currency back.  

Price level
Although Shanghai is China's wealthiest city, most of its products and services are inexpensive.
Here are some examples to give you a rough idea of the cost of living in Shanghai:

Don’t forget
1. You must get a visa before coming to China;
2. ID card, birth certificate and driver license in case of emergency;
3. Cash. It's better for you to have some cash at hand. You can change RMB at exchange points in the airport. About 300 yuan (US$37.50) is enough at first for a casual traveler;
4. Anti-diarrhea tablets, antibiotics and any specialty medicines from home are useful. You should also take along some basic medicines, such as painkillers;
5. Electricity adaptor. The most common plug types are the dual and three-pointed prongs, which are different from the West. China runs on 220 volts, which will burn 110-volt appliances;

Not necessary, but very handy
1. Photocopies of important documents;
2. Several passport photos;
3. Your hotel's contact details in Chinese so you don't get lost;

Useful telephone numbers
Ambulance: 120
Telephone number enquiry: 114
Fire: 119
Police: 110