The best months to visit Mazatlan are between November and May, during which time the average high temperatures hover in the low to mid 80s, and rain will rarely disrupt an outing to the beach.

Another issue to consider when deciding during which month to visit are the crowds. The busy seasons are during spring break (late February until the end of March) and winter vacations (December and January). These four months see the largest influx of travelers throughout the year.

Rainy season usually begins in late June and continues through September. The mornings are generally sunny and clouds begin to form around noon with thunder, lightening and rain arriving in the afternoon. It is more humid during rainy season, and there are more mosquitos. The vegetation surrounding Mazatlan turns a deep green and trees & flowers bloom everywhere. So even during rainy season you can usually count of 3-5 hours of sun a day.