The Sea of Cortez is certainly my main attraction to living in Baja California Sur. And no time of year is better for recreation on the Sea than mid-October to late November. The summer heat breaks, the humidity drops dramatically and yet the waters of the Sea are still incredibly warm and inviting. Snorkeling and scuba diving in the Sea of Cortez peak during the same time period with visibility sometimes in excess of 20 meters. The days are still warm enough to inspire you to take a swim, while the nights cool off nicely so you can rest up for the day ahead.