Weather and Climate Generally, cruisers can expect weather in Mexican Riviera that averages in the 80s, peaking into the 90s in the summer and early fall. November to April is the driest time of year and can occasionally see temperatures in the 70s.

The weather on a Mexico cruise in 2026 depends on whether you are sailing to the Mexican Riviera (West Coast) or the Western Caribbean (East Coast/Cozumel). On the West Coast (departing from LA or San Diego), the first and last days at sea can be quite chilly and windy as the ship moves through the Pacific; however, once you reach Cabo San Lucas or Puerto Vallarta, the weather is typically dry, sunny, and around 80°F to 85°F. On the East Coast (departing from Texas or Florida), the weather is consistently humid and tropical, with Cozumel and Costa Maya averaging 85°F to 90°F year-round. For 2026 travelers, it is vital to keep an eye on "Hurricane Season" (June to November), which can lead to rougher seas and sudden rain. Regardless of the route, the sea breeze on deck can make it feel cooler than it is, so a "light jacket" is a peer-to-peer essential for evenings at sea, even when the port weather is scorching hot.