Other facts from our historical weather data: Which months have the greatest rainfall in Iguatu? Most rainfall (rainy season) is seen in February and March. Does Iguatu have a dry season? Yes, the months of July, August, September, October and November are very dry. Which is the hottest month in Iguatu? October has an average maximum temperature of 37°C (99°F) and is the hottest month of the year. Which is the coolest month in Iguatu? The coolest month is July with an average maximum temperature of 32°C (90°F). Which is the wettest month in Iguatu? March tops the wettest month list with 174mm (6.9 in) of rainfall. Which is the driest month in Iguatu? September is the driest month with 3mm (0.1 in) of precipitation. Which is the sunniest month in Iguatu? September is the sunniest month with an average of 307 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.