Other facts from our historical weather data: Which months have the greatest rainfall in Wok Tum? Most rainfall (rainy season) is seen in May, September, October and November. Which is the hottest month in Wok Tum? May has an average maximum temperature of 31°C (88°F) and is the hottest month of the year. Which is the coolest month in Wok Tum? The coolest month is January with an average maximum temperature of 29°C (84°F). Which is the wettest month in Wok Tum? October tops the wettest month list with 315mm (12.4 in) of rainfall. Which is the driest month in Wok Tum? February is the driest month with 44mm (1.7 in) of precipitation. Which is the sunniest month in Wok Tum? March is the sunniest month with an average of 240 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.