Other facts from our historical weather data: Which months have the greatest rainfall in Dassa-Zoumé? Most rainfall (rainy season) is seen in June, July, August and September. Does Dassa-Zoumé have a dry season? Yes, the months of January and December are very dry. Which is the hottest month in Dassa-Zoumé? February has an average maximum temperature of 37°C (99°F) and is the hottest month of the year. Which is the coolest month in Dassa-Zoumé? The coolest month is January with an average maximum temperature of 30°C (86°F). Which is the wettest month in Dassa-Zoumé? September tops the wettest month list with 197mm (7.8 in) of rainfall. Which is the driest month in Dassa-Zoumé? December is the driest month with 7mm (0.3 in) of precipitation. Which is the sunniest month in Dassa-Zoumé? May is the sunniest month with an average of 226 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.