Other facts from our historical weather data: Which months have the greatest rainfall in Aracaju? Most rainfall (rainy season) is seen in May and June. Which is the warmest month in Aracaju? March has an average maximum temperature of 30°C (86°F) and is the warmest month of the year. Which is the coldest month in Aracaju? The coldest month is August with an average maximum temperature of 27°C (81°F). Which is the wettest month in Aracaju? May tops the wettest month list with 176mm (6.9 in) of rainfall. Which is the driest month in Aracaju? December is the driest month with 39mm (1.5 in) of precipitation. Which is the sunniest month in Aracaju? January is the sunniest month with an average of 266 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.