Other facts from our historical weather data: Which months have the greatest rainfall in Minneriya? Most rainfall (rainy season) is seen in October, November and December. Which is the hottest month in Minneriya? April has an average maximum temperature of 36°C (97°F) and is the hottest month of the year. Which is the coolest month in Minneriya? The coolest month is January with an average maximum temperature of 30°C (86°F). Which is the wettest month in Minneriya? November tops the wettest month list with 244mm (9.6 in) of rainfall. Which is the driest month in Minneriya? June is the driest month with 23mm (0.9 in) of precipitation. Which is the sunniest month in Minneriya? March 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.