Guangzhou, located at the north of the Pearl River delta, is an important trading center as well as a busy port and the capital city of the province of Guandong . The city has an area of over 16,000 square kilometers and a population of 6.7 million.
The climate of Guangzhou is sub-tropical. The average year-round temperature is 22C. August is the hottest month, with an average temperature of 28C. January is the coldest month, with an average of 13C. The rainy season falls between April and August. Average annual rainfall is 1,720 mm.