Climate of Uruguay
Encyclopedia
The climate of Uruguay
Uruguay
Uruguay ,officially the Oriental Republic of Uruguay,sometimes the Eastern Republic of Uruguay; ) is a country in the southeastern part of South America. It is home to some 3.5 million people, of whom 1.8 million live in the capital Montevideo and its metropolitan area...

is humid subtropical
Humid subtropical climate
A humid subtropical climate is a climate zone characterized by hot, humid summers and mild to cool winters...

 (Cfa according to the Köppen climate classification
Köppen climate classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by Crimea German climatologist Wladimir Köppen in 1884, with several later modifications by Köppen himself, notably in 1918 and 1936...

). It is fairly uniform nationwide, since the country is located entirely within the temperate zone. Seasonal variations are pronounced, but extremes in temperature are rare. As would be expected by its abundance of water, high humidity and fog are common. The absence of mountains and others weather barriers makes all locations vulnerable to high winds and rapid changes in weather as fronts or storms sweep across the country. Weather is sometimes humid.

Temperature and rainfall

Seasons are fairly well defined, and in most of Uruguay spring is usually damp, cool, and windy; summers are warm; autumns are mild; and winters are chilly and uncomfortably damp. Northwestern Uruguay, however, is farther from large bodies of water and therefore has warmer summers and milder and drier winters than the rest of the country. Average highs and lows in summer (January) in Montevideo
Montevideo
Montevideo is the largest city, the capital, and the chief port of Uruguay. The settlement was established in 1726 by Bruno Mauricio de Zabala, as a strategic move amidst a Spanish-Portuguese dispute over the platine region, and as a counter to the Portuguese colony at Colonia del Sacramento...

 are 28 and 17 °C (82.4 and 62.6 °F), respectively, with an absolute maximum of 43 °C (109.4 °F); comparable numbers for Artigas
Artigas
Artigas may refer to:* José Gervasio Artigas, a central figure in Uruguay's struggles for independence from Spain and Buenos Aires* Artigas, a town in Uruguay* Artigas Department, a region of Uruguay* A number of ships of the National Navy of Uruguay...

 in the northwest are 33 and 18 °C (91.4 and 64.4 °F), with the highest temperature ever recorded (42 °C (107.6 °F)). Winter (July) average highs and lows in Montevideo are 14 and 6 °C (57.2 and 42.8 °F), respectively, although the high humidity makes the temperatures feel colder; the lowest temperature registered in Montevideo is -4 °C. Averages in July of a high of 18 °C (64.4 °F) and a low of 7 °C (44.6 °F) in Artigas confirm the milder winters in northwestern Uruguay, but even here temperatures have dropped to a subfreezing -4 °C.

Rainfall is fairly evenly distributed throughout the year, and annual amounts increase from southeast to northwest. Montevideo averages 950 millimetres (37.4 in) annually, and Artigas receives 1235 millimetres (48.6 in) in an average year. As in most temperate climates, rainfall results from the passage of cold fronts in winter, falling in overcast drizzly spells, and summer thunderstorms are frequent.

Winds

High winds are a disagreeable characteristic of the weather, particularly during the winter and spring, and wind shifts are sudden and pronounced. A winter warm spell can be abruptly broken by a strong pampero, a chilly and occasionally violent wind blowing north from the Argentine pampas. Summer winds off the ocean, however, have the salutary effect of tempering warm daytime temperatures.

Institutions

The Uruguayan National Directorate of Meteorology is the leading institution in climatological matters. Since 1951 Uruguay is member of the World Meteorological Organization.

In May 2010 took place the 4th General Meeting of Global Environment Facility
Global Environment Facility
The Global Environment Facility unites 182 member governments — in partnership with international institutions, nongovernmental organizations, and the private sector — to address global environmental issues....

. As a consequence there will be an observatory specialized in climate change
Climate change
Climate change is a significant and lasting change in the statistical distribution of weather patterns over periods ranging from decades to millions of years. It may be a change in average weather conditions or the distribution of events around that average...

in Uruguay, a new experience at world scale.

External links

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