The best time to visit is during the drier months: February and March. Other facts from our historical weather data: Which months have the greatest rainfall in San Ignacio? Most rainfall (rainy season) is seen in June, September and October. Which is the hottest month in San Ignacio? April has an average maximum temperature of 35°C (95°F) and is the hottest month of the year. Which is the coolest month in San Ignacio? The coolest month is January with an average maximum temperature of 29°C (84°F). Which is the wettest month in San Ignacio? September tops the wettest month list with 170mm (6.7 in) of rainfall. Which is the driest month in San Ignacio? February is the driest month with 37mm (1.5 in) of precipitation. Which is the sunniest month in San Ignacio? April is the sunniest month with an average of 256 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.