Other facts from our historical weather data: Which is the warmest month in Hacienda Porvenir? September has an average maximum temperature of 16°C (61°F) and is the warmest month of the year. Which is the coldest month in Hacienda Porvenir? The coldest month is July with an average maximum temperature of 15°C (59°F). Which is the wettest month in Hacienda Porvenir? March tops the wettest month list with 242mm (9.5 in) of rainfall. Which is the driest month in Hacienda Porvenir? August is the driest month with 79mm (3.1 in) of precipitation. Which is the sunniest month in Hacienda Porvenir? August is the sunniest month with an average of 257 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.