Patagonia has very long days in the summer with the sun
rising at 4:30am and setting at around 10:30pm.
Daytime offers warm weather with cool evenings, sometimes even resulting
in frosty nights even in the summer month due to the relief of the Sea winds
and the cool climate of the mountain ranges.
The region experiences humid climates with a generous amount of rain
through out the year.
The best time to travel is September through February because
the Southern hemisphere experiences the Spring and Summer during these months.
The warmer weather offers the optimum time to enjoy all Patagonia has to offer.
The Williwaw is time of year where Southern Patagonia
experiences higher winds that are generated by the changing pressure between
the ice and the sea, cold air comes down over the mountaintops and joins with
the wind carried from the sea resulting in a collision of pressure systems. Variations of pressure can occur from cold
conditions which create conditions of dense, sinking air with high pressure and
higher temperatures that create expanding air, rising air and low pressure
systems. Combined with the rotation of
the earth surface, different belt variation patterns are created.
There are three mechanisms that will result in air rising; convection,
cyclonic, orographic. Southern Patagonia
and the surrounding South American regions are considered to have the highest
gravity wave activity in the entire world.
Strong surface winds near the Andes and strong low surface winds
proliferates cyclones to move towards the South Pacific Ocean. The orography of this region changes on a day
to day basis over a total of a 72 hour period in a specific event measured over
the Drake Passage.
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