NO relief from the heat is expected for at least five days with a high of 37 degrees Celsius and lots of sun forecast today.
Tomorrow will also be sunny and the high hits 38 degrees as the heat wave will continue through the weekend, the Shanghai Meteorological Bureau said yesterday.
A thunderstorm is possible on Saturday afternoon, it said.
Yesterday the high reached 35.4 degrees. It was the 13th high temperature day of 35 degrees or above this month.
According to the weather bureau said it was the second longest period for high temperature days since records started being kept in 1873. In 1934, 16 high temperature days were recorded on July 1-17.
Yesterday also marked the 15th high temperature day this summer, the bureau said.
Meanwhile, tropical storm Cimaron formed at 8am yesterday in the Bashi Channel, which is 400 kilometers from Taiwan. It is moving northwest and approaching southeastern coastal areas of China's mainland.
The bureau said Shanghai will not be influenced by Cimaron.
The Shanghai civil affair authorities said yesterday that beggars and homeless people will be taken to relief stations with air-conditioners and be offered cold drinks.
Officers will also buy train or bus tickets for them if they want to return to their hometowns.
Landscape lights in the city, except those around the Bund area, will be turned off if the high temperature reaches 38 degrees or above, the Shanghai Greenery and Public Sanitation Bureau said.
Landscape lights are now being switched on 30 minutes later than usual to save power, according to the bureau.