Other facts from our historical weather data: Does Sousa have a dry season? Yes, the months of July, August, September, October and November are very dry. Which is the hottest month in Sousa? November has an average maximum temperature of 37°C (99°F) and is the hottest month of the year. Which is the coolest month in Sousa? The coolest month is July with an average maximum temperature of 33°C (91°F). Which is the wettest month in Sousa? March tops the wettest month list with 143mm (5.6 in) of rainfall. Which is the driest month in Sousa? September is the driest month with 1mm (0 in) of precipitation. 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.