BEIJING, July 2 -- China's National Meteorological Center on Sunday renewed a yellow alert for high temperatures as heatwaves are expected to scorch vast parts of the country.

During daylight hours on Sunday, temperatures in parts of Beijing, Tianjin, Hebei, Henan, Shandong, Inner Mongolia, Liaoning, Hubei, Hunan, Jiangxi, Guangxi, Guangdong, and Fujian are forecast to exceed 35 degrees Celsius, according to the center.

In some areas, temperatures may climb to as high as 37 to 39 degrees Celsius during the same period, according to the forecast.

The center has advised people to avoid outdoor activities in the afternoon and suggested that workers exposed to high temperatures adopt necessary protective measures.

China has a three-tier weather warning system for high temperatures, with red representing the most severe warning, followed by orange and yellow.