Where is the windiest place on Earth?

According to the Guinness Book of World Records, Commonwealth Bay in Antarctica has the highest average wind speed on the planet. Wind gusts in this bay often exceed 150 miles per hour! The average wind speed at the Commonwealth Bay weather station is 50 mph because it is nearly completely encircled by cliffs that funnel the air, similar to what happens between tall buildings.

Commonwealth Harbor is an open bay in Antarctica that is roughly 48 kilometers (30 miles) wide at the entrance between Point Alden and Cape Gray. It was found in 1912 by the Australasian Antarctic Expedition led by Douglas Mawson, who constructed the expedition's primary base at Cape Denison near the bay's head. Australasian Antarctic Expedition named it after the Commonwealth of Australia. Despite the extreme weather, the coast of Commonwealth Bay is an important breeding area for Antarctic petrels, emperor penguins, and Adelie penguins which means that there are also Leopard seals.