Other facts from our historical weather data: Which months have the greatest rainfall in Aratuba Beach? Most rainfall (rainy season) is seen in April, May, June and July. Which is the warmest month in Aratuba Beach? February has an average maximum temperature of 30°C (86°F) and is the warmest month of the year. Which is the coldest month in Aratuba Beach? The coldest month is August with an average maximum temperature of 26°C (79°F). Which is the wettest month in Aratuba Beach? May tops the wettest month list with 207mm (8.1 in) of rainfall. Which is the driest month in Aratuba Beach? December is the driest month with 71mm (2.8 in) of precipitation. Which is the sunniest month in Aratuba Beach? January is the sunniest month with an average of 246 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.