Other facts from our historical weather data: When is the rainy season in Angkor Wat? Rainy season in Angkor Wat occurs in the months of May, June, July, August, September and October. Does Angkor Wat have a dry season? Yes, the months of January, February and December are very dry. Which is the hottest month in Angkor Wat? April has an average maximum temperature of 36°C (97°F) and is the hottest month of the year. Which is the coolest month in Angkor Wat? The coolest month is December with an average maximum temperature of 32°C (90°F). Which is the wettest month in Angkor Wat? September tops the wettest month list with 288mm (11.3 in) of rainfall. Which is the driest month in Angkor Wat? 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.