Other facts from our historical weather data: When is the rainy season in La Palmilla? Rainy season in La Palmilla occurs in the months of January, February, March, October, November and December. Which is the warmest month in La Palmilla? January has an average maximum temperature of 25°C (77°F) and is the warmest month of the year. Which is the coldest month in La Palmilla? The coldest month is September with an average maximum temperature of 25°C (77°F). Which is the wettest month in La Palmilla? July tops the wettest month list with 1349mm (53.1 in) of rainfall. Which is the driest month in La Palmilla? January is the driest month with 719mm (28.3 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.