Other facts from our historical weather data: When is the rainy season in Kamphaeng Phet? Rainy season in Kamphaeng Phet occurs in the months of May, June, July, August, September and October. Does Kamphaeng Phet have a dry season? Yes, the months of January, February and December are very dry. Which is the hottest month in Kamphaeng Phet? April has an average maximum temperature of 39°C (102°F) and is the hottest month of the year. Which is the coolest month in Kamphaeng Phet? The coolest month is January with an average maximum temperature of 32°C (90°F). Which is the wettest month in Kamphaeng Phet? September tops the wettest month list with 279mm (11 in) of rainfall. Which is the driest month in Kamphaeng Phet? February is the driest month with 11mm (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.