Climate
The climate in Galapagos has two main seasons, brought about by the influence of ocean currents in the islands.
The dry or garua season goes from June to December. In this season the temperatures are cooler and the days are more commonly overcast. Garua refers to the mist that normally lingers in the highlands of the islands at this time. Air temperatures in this season range from 18°C to 23°C (upper 60's to low 70's).
From January to June the temperature rises and clear skies are common. In this season there's also sporadic heavy rain. This is why its called the rainy season, but unlike the name suggest warm weather and sunshine are quite prevalent during this time. This season registers air temperatures from 25°C into the low 30s (80's to 90's). Also, during this season the waters are calmer and warmer.
At times the transition between these seasons can take a few months when either type of weather can occur.
There is a strong influence of the Humboldt Current in Galapagos' climate. This is why the islands are particularly dry, something curious for the tropics. This also helps for the climate not to be excessively hot.
Every seven years or so, the temperature of the waters rise. Its "El Niño", with its heavy rains and a reversal in weather patterns.
This phenomenon helps terrestrial life thrive, while it takes a toll on the marine animals. This has been happening for ages. The fittest survive.
The sea temperature ranges from as low as 16°C to as high as 28°C depending on season and site. For the most and throughout all seasons, Galapagos waters are warm enough for bathing and snorkeling.
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