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Uruguay River
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River
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The Uruguay River originates in the coastal mountains of Brazil and flows south for approximately 1,838 kilometers, serving as a natural border between Argentina and Brazil, and further south between Argentina and Uruguay. Along with the Paraná River, it forms the massive Río de la Plata estuary. One of the most extraordinary natural features of the river is the Saltos del Moconá, a three-kilometer-long waterfall that runs parallel to the riverbed, a phenomenon nearly unique in the world. The river is vital for regional energy production, most notably through the Salto Grande Dam, a collaborative project between Argentina and Uruguay. Ecologically, it supports diverse habitats, including the El Palmar National Park, which protects ancient Yatay palm forests. The Uruguay River is known for its clear waters compared to the Paraná and is a popular destination for recreational fishing and river tourism, with numerous sandy beaches and thermal springs along its banks. It remains a key symbol of regional integration and an essential resource for the agriculture and industry of the surrounding provinces.
- Location: Argentina
- Nearby: San Isidro (38 km)
Best time to visit & climate
The most pleasant time to visit is Mar, Nov, Dec.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 25 | 24 | 21 | 18 | 14 | 11 | 10 | 12 | 14 | 17 | 21 | 23 |
| Rain mm | 119 | 130 | 129 | 105 | 75 | 50 | 65 | 70 | 84 | 118 | 104 | 108 |
📋 Practical info
Getting there
Major national routes along the long eastern border of Argentina provide easy access to the river, with cities like Concordia offering great starting points.
Best season
Spring and autumn are clearly the best times to visit, perfectly avoiding the excessive summer heat and humidity typical of the northern basin sections.
Terrain & paths
The banks offer a wonderful mix of sandy beaches in the south and denser vegetation further north, usually accessible by gentle slopes and paved paths.
What to bring
Bring a swimsuit for the safe beach areas, very comfortable walking shoes, strong mosquito repellent, and highly adequate sun protection for long outdoor days.
Parking
Parking is exceptionally abundant in riverside towns, where visitors can leave their cars securely and walk to public beaches or scenic boardwalks.
Safety
Swim only in designated areas to avoid unpredictable underwater currents, and pay close attention to occasional border control regulations if boating.
Time needed
A typical visit lasts a half-day for beach relaxation or strolling, while fishing and cross-border explorations can easily fill up an entire weekend.
Geography
Facts
- The river flows for a total of 1,838 kilometers.
- It acts as a border for Argentina, Brazil, and Uruguay.
- The Salto Grande hydroelectric plant produces 8,300 GWh annually.
- The Moconá Falls stretch for over 3 kilometers along the river.
- The name 'Uruguay' means 'river of painted birds' in Guarani.
- It converges with the Paraná to form the Río de la Plata.
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
Vehicle
Only stops with (optional):
© OpenStreetMap contributors · OpenRouteService
Sights in the town Uruguay River (1)
Sights nearby
Frequently asked questions
Where does the Río Uruguay flow?
It forms the natural border between Argentina, Uruguay, and Brazil.
What can you do on the Río Uruguay?
Water sports, fishing, and relaxing in the thermal resorts on the shore are very popular.
Are there thermal baths on the river?
Yes, in cities like Federación, there are excellent facilities that utilize the thermal water.
When is the best time to travel?
Spring and autumn offer good temperatures for excursions and thermal baths.
Is the river navigable?
In the lower sections, the river is navigable and is used for regional trade.
Uruguay River: where is it located?
Uruguay River is located in Argentina.
Uruguay River: when is the best time to visit?
The most pleasant time to visit is Mar, Nov, Dec.
Uruguay River: why is it worth visiting?
The Uruguay River originates in the coastal mountains of Brazil and flows south for approximately 1,838 kilometers, serving as a natural border between Argentina and Brazil, and further south between Argentina and Uruguay.
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Nearby cities
Carmelo
Carmelo is an important city in the CO department of Uruguay, known for its role in the regional economy.
Dolores
Dolores is an important city in the SO department of Uruguay, known for its role in the regional economy.
San Isidro
An affluent northern suburb of Buenos Aires, known for its colonial heritage and riverside mansions.
Fray Bentos
Fray Bentos is the capital city of the RN department in Uruguay and the administrative center of the region.
Lanús
A bustling industrial and residential city in Greater Buenos Aires, known for its strong community identity and sports passion.
Quilmes
A historic industrial city located within the Greater Buenos Aires metropolitan area.
Lomas de Zamora
A large residential and commercial city within the Greater Buenos Aires metropolitan area, featuring historic architecture and parks.
Mercedes
Mercedes is the capital city of the SO department in Uruguay and the administrative center of the region.
Gualeguaychú
Located in southeastern Entre Ríos, Gualeguaychú is world-famous for hosting the largest and most spectacular carnival in Argentina.
Colonia del Sacramento
Colonia del Sacramento is the capital city of the CO department in Uruguay and the administrative center of the region.
History & landmarks
Estadio Monumental
The largest football stadium in Argentina and home to the national team.
Galileo Galilei Planetarium
A popular planetarium in Buenos Aires, recognized for its distinctive modern design.
Floralis Genérica
A giant metal flower sculpture that opens and closes throughout the day.
Teatro Colón
One of the world's most acclaimed opera houses, known for its incredible acoustics and beauty.
La Bombonera
The legendary home stadium of Boca Juniors, known for its unique shape and fan atmosphere.
Nature
More places
San José Palace
The historical residence of Justo José de Urquiza, a key figure in Argentina's constitutional development.
Salto Grande Dam
A binational hydroelectric dam on the Uruguay River, shared with Uruguay.
Port of Nueva Palmira
Uruguay's second-largest port, specializing in grain and pulp exports.
Narbona Estate
One of the oldest rural buildings in Uruguay, built in 1732 by Juan de Narbona.
Finca Narbona Farm
A historic agricultural estate producing high-quality wine and artisanal cheeses.
Martín García Island
A small Argentine island in the Río de la Plata near the Uruguayan coast.
Montes del Plata Pulp Mill
Major joint-venture pulp mill contributing significantly to Uruguay's GDP and exports.
Tierra Santa Theme Park
A religious theme park in Buenos Aires that meticulously recreates ancient Jerusalem.