Avenida Aguirre, one of the main avenues in Puerto Iguazú
|Elevation||162 m (531 ft)|
|Population (2010 census [INDEC])|
Puerto Iguazú is a frontier city in the province of Misiones, Argentina. With a population of 82,227 (2010 census [INDEC]), it is the fifth largest city in the Province, after Posadas, Oberá, Eldorado and San Vicente.
The world-renowned Iguazu Falls are only 18 kilometres (11 mi) away from the city, and as a result the city has developed its infrastructure around tourism.
In 1542, Spanish explorer Álvar Núñez Cabeza de Vaca was the first European to discover what is now called Iguazu Falls. He was drawn by the noise of the water, which can be heard at a distance of several kilometers. When the Spanish arrived in the 16th century, the Guaraní Indians were the principal inhabitants of the area.
Despite its early exploration, the area remained occupied only by the Guaraní until 1880. In 1881, the province of Corrientes, which at that time included what is now Misiones, sold 50 square leagues (13,000 square kilometres (5,000 sq mi)) at the current site of Puerto Iguazú near the falls. The land changed hands three times in the course of just two years, and ended up as the property of Gregorio Lezama. At that time Misiones separated from Corrientes. Lezama funded a scientific expedition to explore the territory, enlisting Carlos Bosetti and Jordan Hummel for that purpose. Those two explorers later organized the first tourist trip to the falls. In 1888 Lezama also sold the land, this time to Martín Errecaborde and Company.
Puerto Iguazú has a Humid Subtropical climate (Cfa according to Köppen climate classification). Temperatures are warm in winter and hot in summer. There is no dry season and rainfall is abundant with every month receiving over 100 mm (3.9 inches) of rain and the wettest month, November, receiving over 200 mm (7.9 inches) of rain on average. Precipitation falls mostly during convective storms. Due to abundant rainfall, rainforests surrounds Puerto Iguazú.
The hot season lasts for up to 6 months or more, with temperatures reaching between 30°C (86F) and 35°C (95F) on most days, and dropping to 18°C (64F) to 24°C (75F) at night. Thunderstorms with heavy rains bring relief when the heat becomes too intense. The cool season runs from late April to mid September, with daily highs reaching an average of 21°C (70F) and a low of 11°C (52F) in June. These averages are reached through an alternating weather pattern, with several days with northerly winds and temperatures of around 28°C (82F) or higher and warm nights over 15°C (59F) giving way, in a very sudden manner, to cool, rainy weather and temperatures between 10°C and 15°C (50F to 59F) for a few days, then to dry, sunny weather and colder nights (around 5°C, or 41F, and sometimes much lower) and pleasant days in the 15°C to 20°C (59F to 68F) range, and a gradual increase in temperatures as winds rotate to the north again. Frost is rare but does occur on some winters, and temperatures within a few degrees of freezing occur every winter. The record low is -4.9°C (23.1F), a surprisingly low value given the latitude, the vegetation and the low elevation of the area.
Temperatures above 40°C (104°F) have been recorded in the summer. 
|Climate data for Puerto Iguazú (International Airport), Argentina|
|Average high °C (°F)||31.8
|Average low °C (°F)||20.4
|Precipitation mm (inches)||172.6
|Source: Servicio Meteorológico Nacional (Argentine Meteorological Service)|
The economy is centered around tourism, given that the city's many hotels provide the principal source of jobs for its inhabitants. Many international hotels have been and are being constructed along the banks of the Iguazú River.
Other of the city's tourist attractions include Three Frontiers, where the Argentine, Paraguayan and Brazilian borders meet. Puerto Iguazú is home to an active community of artisans, the La Aripuca resort, the Museum of Images of the Jungle (a collection of woodcarvings), the Mbororé Museum, the Luis Honorio Rolón Municipal Nature Park, the Güira Oga Center for Bird Rehabilitation, the Hotel Esturión, the Iguazú Grand Hotel and Casino, and south of Puerto Iguazú, the Sheraton Iguazú Resort & Spa.
The Tancredo Neves International Bridge links Puerto Iguazú with the Brazilian border town of Foz do Iguaçu, where the Argentine National Route 12 becomes the Brazilian BR-469. From the main bus station one can take taxis, or the municipal bus, one of whose routes run from the Three Frontiers to Iguazú National Park (Parque Nacional de las Cataratas).
One of the last remnants of the Atlantic Forest remains in and around the Iguazu Falls. This is a subtropical forest with native bamboos and a rich diversity of birds including toucans and hummingbirds. Coatis are accustomed to begging for food from park visitors. Most of the streets of Puerto Iguazu are unmetalled, red dirt, with gutters on either side (canalitos) that have grassy banks in which eels and a variety of freshwater fish, including knifefish (gymnotus) and catfish, inhabit. The canals drain into the Paraná River.
- "Guía Climática para el Turismo (Climate Guide for Tourists)" (in Spanish). Retrieved February 17, 2008.
- Yogerst, Joe, and Mellin, Maribeth. Traveler's Companion: Argentina. Globe Pequot Press, 2001.
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