January-
* Land birds start nesting, generally after the first rain
* The green sea turtles arrive to beaches in GPS for egg laying period
* Land iguanas begin reproductive cycles on Isabela Island
February-
* On Floreana Island greater flamingos start nesting
* Bahama pintail ducks (Black-tailed pintail) start their breeding season
* Nazca (masked) boobies on Hood are at the end of their nesting season
* Marine iguanas nest on Santa Cruz Island
* Nesting season of the Galapagos dove reaches its peak
March-
* Marine iguanas nest on Fernandina Island
* March 21st, the beginning of the summer equinox signals the arrival of the waved albatross to Española Island.
April-
* Massive arrival of waved albatrosses to Española Island, where an amazing courtship begins.
* End of hatching season of the giant tortoises
* Eggs of green sea turtles begin to hatch
* Eggs of land iguanas hatch on Isabela Island
May-
* North Seymour's blue-footed boobies begin their courtship
* Sea turtles are still hatching on Gardner Bay, Punta Cormorant, and Puerto Egas
* Most of marine iguanas' eggs hatch from nests on Santa Cruz
* Waved albatross on Española start laying their eggs
* Ban-rumped storm petrels begin their first nesting period
June-
* Giant tortoises on Santa Cruz Island migrate from the highlands to the lowlands in search of suitable nesting places
* Beginning of the nesting season of giant tortoises
* Southern migrants have started their journey towards the north. Galapagos is a rest stop for such birds. Some species of cetaceans (Whales and Dolphins) also follow this pattern of migration.
* Some groups of Humpback whales that migrate up to equatorial latitudes along the coast of Ecuador can reach the Galapagos too.
July-
* Sea bird communities are very active (breeding), especially the Blue footed boobies on Española Island. Flightless cormorants perform beautiful courtship rituals and nesting activities on Fernandina.
* If you walk along the shores of Puerto Egas (Santiago Island) you could find American oystercatchers nesting.
* Lava lizards initiate mating rituals until November
* Cetaceans (whales & dolphins) are more likely to be observed, especially off the western coast of Isabela Island
* Great month to see the four stages of nesting in Blue footed boobies: eggs, chicks, juveniles and sub-adults.
August-
* Galapagos hawks court on Española and Santiago Islands
* Nazca (masked) boobies and Swallow-tailed gulls nest on Genovesa Island
* Giant tortoises return to the highlands of Santa Cruz Island
* Pupping season (births) of sea lions has started. Western and central islands are common places for such sightings.
September-
* Peak of the cold (Garúa) season
* Galapagos Penguins show remarkable activity on Bartolome Island. Since May swimmers and snorkelers can be delighted at Bartolome with penguins active at the surface or torpedo-like while underwater.
* Sea lions are very active. Females have reached estrus stage, and so harem-gathering males are constantly barking and fighting. Shore fighting is heavy. Western and central islands are the most active ones in terms of sea lions' activities.
* Most species of sea birds remain quite active at their nesting sites.
October-
* Lava herons start nesting until March
* The Galapagos Fur Sea lions begin their mating period
* Blue footed boobies raise chicks all over Española and Punta Vicente Roca (Isabela)
* Giant tortoises are still laying eggs
November-
* Pupping of sea lions occurs
* Sea lions are sexually active on the eastern part of the archipelago
* Breeding season for the brown noddies
* Band-rumped storm petrels begin their second nesting period
* Sea lion pups (especially at Champion Islet) play aqua-aerobics next to snorkelers. Most pups here are curious enough to nibble at fins of snorkelers. The average age of most pups is 3-4 months.
December-
* Hatching of giant tortoise's eggs begins and lasts until April
* Green sea turtles display their mating behavior
* The first young waved albatrosses fledge
* First red pouches of Great frigate birds seen at Genovesa




