Other facts from our historical weather data: Which months have the greatest rainfall in Banteay Chhmar? Most rainfall (rainy season) is seen in July, August, September and October. Does Banteay Chhmar have a dry season? Yes, the months of January, February and December are very dry. Which is the hottest month in Banteay Chhmar? April has an average maximum temperature of 38°C (100°F) and is the hottest month of the year. Which is the coolest month in Banteay Chhmar? The coolest month is December with an average maximum temperature of 32°C (90°F). Which is the wettest month in Banteay Chhmar? September tops the wettest month list with 280mm (11 in) of rainfall. Which is the driest month in Banteay Chhmar? January is the driest month with 9mm (0.4 in) of precipitation. 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.