Other facts from our historical weather data: Which months have the greatest rainfall in Cachí? Most rainfall (rainy season) is seen in January, February and December. Does Cachí have a dry season? Yes, the months of June, July and August are very dry. Which is the warmest month in Cachí? December has an average maximum temperature of 19°C (66°F) and is the warmest month of the year. Which is the coldest month in Cachí? The coldest month is July with an average maximum temperature of 14°C (57°F). Which is the wettest month in Cachí? January tops the wettest month list with 223mm (8.8 in) of rainfall. Which is the driest month in Cachí? July is the driest month with 8mm (0.3 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.