In the Galapagos temperatures range from the low 80° to the high 90°F [25°C-30°C] from December until May, the sea is warm and there is a chance of rain and accompanying humidity. From June to September you may experience occasional garua or mist and the water is atypically cool for the tropics. Temperatures vary from the low 60° to high 70°F [15°C-25°C]. From October to December temperatures ranges from the 70°F to 80°F.