Chile: Weather

Extending over 38 degrees of latitude, from the tropics to the vecinity of Antarctica, and from sea level to altitudes of over 20,000 feet, Chile has a wide variety of climatic conditions. Extreme aridity prevails over the northern part of the country; the average annual rainfall in this region is 0.04 inches. Temperatures are moderate along the coast throughout the year and more extreme inland, especially in the central basin. The average temperatures for the hottest (February) and coldest (July) months are 72F and 60F.

Central Chile (30-40 degrees latitude) has a Mediterranean type of climate, with cool and rainy winters (April to September) but without a completely dry season. Average annual precipitation increases substantially and temperatures decrease toward the south. The average temperatures for the hottest (January) and coldest (July) months at Santiago are 68 F and 46.6F, respectively. The average annual precipitation at Santiago is approximately 15 inches.

The climate of the southern region is cool and rainy the year round. It is characterized by abundant low clouds. The average temperature for the warmest (January) and the coldest (July) months are 57F and 40F respectively.. The average annual precipitation is 119 inches. The changes of the snow line on the westward-facing slopes of the Andes can serve as an indication of the variation in climatic conditions with latitude and altitude. The line of permanent snow is approximately 18,000 feet in Chile's extreme north. It descends to 14,000 feet opposite Santiago and to 2,200 feet at Tierra del Fuego.

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