Other facts from our historical weather data: When is the rainy season in Gurupi? Rainy season in Gurupi occurs in the months of January, February, March, April, November and December. Does Gurupi have a dry season? Yes, the months of June, July and August are very dry. Which is the hottest month in Gurupi? September has an average maximum temperature of 37°C (99°F) and is the hottest month of the year. Which is the coolest month in Gurupi? The coolest month is July with an average maximum temperature of 32°C (90°F). Which is the wettest month in Gurupi? January tops the wettest month list with 302mm (11.9 in) of rainfall. Which is the driest month in Gurupi? July is the driest month with 0mm (0 in) of precipitation. Which is the sunniest month in Gurupi? July is the sunniest month with an average of 318 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.