When you're dreaming of a getaway to Kok Tum, year-round temperatures and rainfall may be important factors to consider. The hottest months are usually April and March, with an average temperature of 29°C, while the coldest months are January and December, with an average of 23°C. The rainiest months in Kok Tum are August, July, September and May, with each month seeing an average of 364 mm of rainfall.