Like the Mexican coastline that borders the Caribbean, the Pacific coast is a year-round destination. The best time to go is from late May to October, when the daytime temperatures are warmer, although they seldom fall below the high 70s and 80s F throughout the year. August and September may be more humid and hotter, with the thermometer registering into the 90s F. Count on nights at sea to be ten to twenty degrees cooler, especially in winter months; sea days in the Pacific can be windy and chilly north of Cabo San Lucas any time of the year, even when the sun is shining.