Hong Kong and climate changeHong Kong is a Special Administrative Region of the People’s Republic of China. It is situated at the mouth of the delta formed by the Xijiang (West), Beijiang (North) Dingjiang (East) and Zhujiang (Pearl) rivers as they enter the South China Sea. It has 260 islands and a long coastline of approximately 730 km (453.6 mile). The territory consists of around 1,104 square km. Hong Kong has a population of approximately 7 million people and an economy that is based on trade and services. The GNI of USD 31,620 per capita (comparable to developed countries) and the life expectancy of 82 clearly show that Hong Kong is a wealthy part of China. As less than 25% of Hong Kong’s total area is being developed, this city has a very high population density and heavy urban development; much of which is located in low lying areas and on reclaimed land. This makes the city vulnerable to sea level rise.
Hong Kong has a sub-tropical climate. June to September are the hottest months of the year with monthly mean temperatures range from 27 to 29°C. Winter (December to February) is mild with average seasonal temperature of around 17°C. The average annual rainfall is around 2,400 mm. About 80 % of its annual rainfall occurs between May and September while December and January are the driest months. Tropical cyclones usually affect Hong Kong between June and October, often bringing high winds and widespread heavy rain.