Other facts from our historical weather data: Which months have the greatest rainfall in Coihaique? Most rainfall (rainy season) is seen in May, June, July and August. Which is the warmest month in Coihaique? February has an average maximum temperature of 17°C (63°F) and is the warmest month of the year. Which is the coldest month in Coihaique? The coldest month is July with an average maximum temperature of 4°C (39°F). Which is the wettest month in Coihaique? June tops the wettest month list with 202mm (8 in) of rainfall. Which is the driest month in Coihaique? February is the driest month with 95mm (3.7 in) of precipitation. Which is the sunniest month in Coihaique? January is the sunniest month with an average of 251 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.