Other facts from our historical weather data: Which months have the greatest rainfall in Andigama? Most rainfall (rainy season) is seen in April, May, October and November. Which is the hottest month in Andigama? March has an average maximum temperature of 35°C (95°F) and is the hottest month of the year. Which is the coolest month in Andigama? The coolest month is January with an average maximum temperature of 31°C (88°F). Which is the wettest month in Andigama? October tops the wettest month list with 275mm (10.8 in) of rainfall. Which is the driest month in Andigama? February is the driest month with 45mm (1.8 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.