Weather will likely play an important role when you plan your trip to La Montañita, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually January and February with an average temp of 75°F, while the coldest months are July and August with an average of 72°F. The rainiest months in La Montañita are April, May, June, and July, with each month seeing an average of 15 inches of rainfall.