Galapagos nature calendar

Nov   Dec   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct

Sea Lion
  Pupping of sea lions continue.
Sea lions are sexually active on the eastern part of the archipelago.
Breeding season for the brown noddies
Some species of jellyfish can be seen around the islands. The genus Physalia is commonly seen floating around Gardner and Tortuga Islets. Some can also be seen stranded at the shores of the Flour Beach at Floreana.
Band-rumped storm petrels begin their second nesting period
Seas are calm. South east trade winds have decreased in strength. Water temperatures are slowly rising.
Generally great weather due to transition between one season and the next one
Good visibility for snorkelers
Sea lion pups (specially 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.
 
Hatching of giant tortoise's eggs begins and lasts until April
Green sea turtles display their mating behavior
The rainy season begins, all of the plants of the dry zone produce leaves. Galapagos becomes "green"
The first young waved albatrosses fledge
Great weather. Mostly sunny days. Hardly any wind from the south east. Waters continue to warm up.
Western islands remain very dry. Water temperature still cool for long snorkeling periods.
First red pouches of Great frigatebirds seen at Genovesa.
Nothern migrants have started their journey towards the south. Galapagos is a rest stop for these birds. Some species of Cetaceans also follow this pattern of migration.
 
 
  Beginning of the rainy season
Land birds start nesting, generally after the first rain
On Hood (Española) Island adult marine iguanas become brightly colored (green & red + black)
The green sea turtles arrive to beaches in Galapagos for egg laying period
Land iguanas begin reproductive cycles on Isabela Island
Both, water and air temperatures rise and stay warm until June
Ideal time for snorkeling
 
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
The highest water temperature reaches 25C (77F). This temperature remains constant until April
Few penguins remain at Bartolome Island (most have followed the cool waters back to the west or near upwelling areas)
Nesting season of the Galapagos dove reaches its peak
  Greater Flamingos
 
Albatross
  The rainy season reaches the highest precipitation (this does not mean it rains everyday)
Sporadic tropical rains, intense sun and hot climate. Air temperature can reach up to 30C (86F). Humidity is high.
Marine iguanas nest on Fernandina
March 21st, the beginning of the summer equinox, signals the arrival of the waved albatross to Española.
Even the western islands have warm waters where snorkeling is excellent. Punta Vicente Roca (Isabela) can be an amazing site. Penguins still active in the water, next to tropical fish! (How bizarre!)
Some shores, specially those facing the north side, can receive deep surge waves coming from the warmer northern currents. Disembarking in certain areas like Puerto Egas, Gardner Bay, Bartolome can be quite a challenge.
Snorkelers can remain long periods of time in the water.
 
Massive arrival of waved albatrosses to Española. Amazing courtship starts.
End of hatching season of the giant tortoises
Eggs of green sea turtles begin to hatch
Eggs of land iguanas hatch on Isabela
While the rains have ended, the islands quite continue green 
Good visibility in the water for snorkelers
Perhaps, together with May, the best months in Galapagos (weather, animals, water temperature)
 
 
  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
Palo santo trees begin to shed their foliage
Waved albatross on Española start laying their eggs
Ban-rumped storm petrels begin their first nesting period
 
Beginning of the garúa season
Giant tortoises onSanta Cruz Island migrate from the highlands to the lowlands in search of suitable nesting places
Beginning of the nesting season of giant tortoises
South east trade winds return. Currents become a bit stronger. Seas pick up in surge and wave action.
Many red pouches by males of Magnificent Frigatebirds on North Seymour.
Southern migrants have started their journey towards the north. Galapagos is a rest stop for such birds. Some species of cetaceans 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.
 
 
lava lizard
  Sea bird communities are very active (breeding), specially the blue footed boobies on Española. 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, specially off the western coast of Isabela
Great month to see the four stages of nesting in blue footed boobies: eggs, chicks, juveniles and subadults.
Water temperature does not reach more than 21C (68F)
 
Galapagos hawks court on Española and Santiago
Nazca (masked) boobies and swallow-tailed gulls nest on Genovesa Island
The temperature of the ocean drops to 18C (64F), which obviously varies according to the geographic zones among the islands.
Migrant shore birds start to arrive, and stay on the islands until March
Giant tortoises return to the highlands of Santa Cruz Island
Oceans are quite choppy, currents at the strongest levels, surge can be expected along the shores that face west or south
Pupping season (births) of sea lions has started. Western and central islands are common places for such sightings.
 
 
  Peak of the cold (garúa) season
The air temperature reaches its lowest levels (19C-66F)
Galapagos penguins show remarkable activity on Bartolome. 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.
 
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
Days are not always sunny. Garúa can be expected in most locations, except the western islands where most days have a misty start but after few hours of daylight it burns off.
Sunrises in the west can be quite beautiful as the garúa covers only certain locations of the western volcanoes. Summits are clear, but low-lying fog covers the shoreline.