Other facts from our historical weather data: When is the rainy season in Sawankhalok? Rainy season in Sawankhalok occurs in the months of May, June, July, August and September. Does Sawankhalok have a dry season? Yes, the months of January, February and December are very dry. Which is the hottest month in Sawankhalok? April has an average maximum temperature of 40°C (104°F) and is the hottest month of the year. Which is the coolest month in Sawankhalok? The coolest month is January with an average maximum temperature of 33°C (91°F). Which is the wettest month in Sawankhalok? August tops the wettest month list with 259mm (10.2 in) of rainfall. Which is the driest month in Sawankhalok? February is the driest month with 12mm (0.5 in) of precipitation. Which is the sunniest month in Sawankhalok? March is the sunniest month with an average of 315 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.