Other facts from our historical weather data: Which months have the greatest rainfall in Popaywa? Most rainfall (rainy season) is seen in June, July, August, September and October. Does Popaywa have a dry season? Yes, the months of January, February, March, April and December are very dry. Which is the hottest month in Popaywa? April has an average maximum temperature of 39°C (102°F) and is the hottest month of the year. Which is the coolest month in Popaywa? The coolest month is January with an average maximum temperature of 29°C (84°F). Which is the wettest month in Popaywa? September tops the wettest month list with 232mm (9.1 in) of rainfall. Which is the driest month in Popaywa? February 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.