Other facts from our historical weather data: Which months have the greatest rainfall in Bang Khon Thi? Most rainfall (rainy season) is seen in September and October. Does Bang Khon Thi have a dry season? Yes, the months of January, February and December are very dry. Which is the hottest month in Bang Khon Thi? April has an average maximum temperature of 37°C (99°F) and is the hottest month of the year. Which is the coolest month in Bang Khon Thi? The coolest month is January with an average maximum temperature of 32°C (90°F). Which is the wettest month in Bang Khon Thi? September tops the wettest month list with 224mm (8.8 in) of rainfall. Which is the driest month in Bang Khon Thi? December is the driest month with 12mm (0.5 in) of precipitation. Which is the sunniest month in Bang Khon Thi? January is the sunniest month with an average of 273 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.