Other facts from our historical weather data: Which months have the greatest rainfall in Hinkong? Most rainfall (rainy season) is seen in May, September, October and November. Which is the hottest month in Hinkong? May has an average maximum temperature of 31°C (88°F) and is the hottest month of the year. Which is the coolest month in Hinkong? The coolest month is January with an average maximum temperature of 29°C (84°F). Which is the wettest month in Hinkong? October tops the wettest month list with 317mm (12.5 in) of rainfall. Which is the driest month in Hinkong? February is the driest month with 44mm (1.7 in) of precipitation. Which is the sunniest month in Hinkong? March is the sunniest month with an average of 240 hours of sunshine. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.