Continental islands are generally larger (most notably, the Marianas, New Guinea, the Bismarcks, the Solomons, Vanuatu, Fiji, New Caledonia, and the North and South islands of New Zealand) and have richer mineral-bearing soils than their oceanic counterparts.
Average Weather in March in San Miguel de Cozumel Mexico. In San Miguel de Cozumel, the month of March is characterized by gradually rising daily high temperatures, with daily highs increasing by 2Â°F, from 83Â°F to 85Â°F over the course of the month, and rarely exceeding 89Â°F or dropping below 78Â°F.
The reason many people feel the best time to visit Cozumel is during the winter months is because the temperatures are relatively mild. You can expect mid 80s during the day and 70s at night. There is also very little rain at all during the winter, making clear days and excellent diving conditions a near guarantee.