Other facts from our historical weather data: Which months have the greatest rainfall in Thanya Buri? Most rainfall (rainy season) is seen in May, June, July, August, September and October. Does Thanya Buri have a dry season? Yes, the months of January and December are very dry. Which is the hottest month in Thanya Buri? 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 Thanya Buri? The coolest month is January with an average maximum temperature of 33°C (91°F). Which is the wettest month in Thanya Buri? September tops the wettest month list with 302mm (11.9 in) of rainfall. Which is the driest month in Thanya Buri? December is the driest month with 10mm (0.4 in) of precipitation. Which is the sunniest month in Thanya Buri? 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.