Weather will likely play an important role when you plan your trip to San Felipe, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually September and August, with an average temperature of 17°C, while the coldest months are July and August, with an average of 17°C. The rainiest months in San Felipe are March, February, January and April, with each month seeing an average of 308 mm of rainfall.