Patagonia

Patagonia is that portion of South America which, to the east of the Andes, lies south of the Neuquén and Río Colorado rivers, and, to the west of the Andes, south of (42°S). The Chilean portion embraces the southern part of the region of Los Lagos, and the regions of Aysen and Magallanes (excluding the portion of Antarctica claimed by Chile). East of the Andes the Argentine portion of Patagonia includes the provinces of Neuquén, Río Negro, Chubut, Santa Cruz, and Tierra del Fuego, as well as the southern tip of the Buenos Aires Province.

Climate

The climate is less severe than was supposed by early travellers. The east slope is warmer than the west, especially in summer, as a branch of the southern equatorial current reaches its shores, whereas the west coast is washed by a cold current. At Puerto Montt, on the inlet behind Chiloé Island. the mean annual temperature is 11 °C (52 °F) and the average extremes 25.5 °C (78 °F) and −1.5 °C (29.5 °F), whereas at Bahia Blanca near the Atlantic coast and just outside the northern confines of Patagonia the annual temperature is 15 °C (59 °F) and the range much greater. At Punta Arenas, in the extreme south, the mean temperature is 6 °C (43 °F) and the average extremes 24.5 °C (76 °F) and −2 °C (28 °F). The prevailing winds are westerly, and the westward slope has a much heavier precipitation than the eastern; thus at Puerto Montt the mean annual precipitation is 2.46 m (97 inches), but at Bahia Blanca it is 480 mm (19 inches). At Punta Arenas it is 560 mm (22 inches).

Related Topics:
Puerto Montt - Bahia Blanca

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