Climate

From June to December the southern tradewinds bring the colder Humbolt current north to the Galapagos. This means that the water is cooler, and a layer of high atmosphere mist pervades the island skies. In effect, the highlands of the larger islands are kept green and lush, while the sea level islands and shorelines have little precipitation. Thus, June to December is generally called the "dry season", known for its blue skies and mid-day showers. During this season, sea mammals and land birds are most active. This is the perfect time for observing the sea birds' courtship displays. The warmer waters of the southern flowing Panama current head strongly towards the Galapagos again around December when the southern tradewinds blow more softly. Then the cooling factor of the Humbolt current recedes and the waters are warmed.
 The time period between December and May are considered the "warm season". During this warmer season, the Galapagos' climate is more tropical with daily rain and cloudier skies. The island birds are especially active during that season. Also, the ocean temperature is warmer for swimming and snorkeling. On the Galapagos Islands, you'll always find the wildlife activity to be absolutely amazing and unique, no matter when you visit the islands.