Costanera Sur Ecological ReserveAbout Costanera Sur Ecological Reserve
Also known as the Buenos Aires Ecological Reserve, this protected area covers about 3.50 km2 (865 acres) of low-lying land along the Río de la Plata on the eastern edge of Puerto Madero.
Its character is distinctly urban-nature: long, flat trails and open horizons by the water, with patches of wetland, scrub and grassy areas that attract wildlife and make it feel surprisingly removed from the nearby high-rises.
Because it sits right by the city centre, it works well as a half-day visit for fresh air, a long walk or ride, and views over the riverbank.
What to See at Costanera Sur Ecological Reserve
- Río de la Plata shoreline viewpoints for wide river views.
- Wetland and lagoon areas where birdlife is often easiest to spot.
- Long flat paths through grassland and scrub, ideal for a relaxed walk or cycle.
- Edges of the reserve near Puerto Madero for the contrast between nature and skyline.
- Quieter stretches deeper inside the reserve for a more secluded feel.
Nearby Attractions to Costanera Sur Ecological Reserve
Best Time to Visit Costanera Sur Ecological Reserve
Go in the morning or late afternoon for cooler temperatures and better chances of seeing wildlife, and choose a clear day for the best open views along the Río de la Plata.
Weather & Climate near Costanera Sur Ecological Reserve
Costanera Sur Ecological Reserve's climate is classified as Humid Subtropical - Humid Subtropical climate with warm summers (peaking in January) and cool winters (coldest in July). Temperatures range from 7°C to 30°C. Abundant rainfall (1052 mm/year), wettest in March.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Excellent | 19° - 30° | 24° | 104 mm | some cloud | 68% | 4.5 m/s | 3.0 extreme | 14.0h |
| February | Excellent | 18° - 28° | 23° | 104 mm | some cloud | 72% | 4.3 m/s | 2.6 extreme | 13.2h |
| March | Excellent | 17° - 26° | 21° | 114 mm | some cloud | 74% | 4.2 m/s | 2.0 very high | 12.2h |
| April | Excellent | 13° - 22° | 18° | 94 mm | some cloud | 75% | 4.0 m/s | 1.1 high | 11.1h |
| May | Very Good | 10° - 19° | 14° | 80 mm | partly cloudy | 80% | 4.1 m/s | 0.6 moderate | 10.2h |
| June | Very Good | 7° - 15° | 11° | 62 mm | partly cloudy | 81% | 4.3 m/s | 0.4 low | 9.7h |
| July | Good | 7° - 15° | 11° | 60 mm | partly cloudy | 81% | 4.4 m/s | 0.4 low | 10.0h |
| August | Very Good | 8° - 17° | 12° | 61 mm | partly cloudy | 80% | 4.6 m/s | 0.7 moderate | 10.7h |
| September | Very Good | 9° - 19° | 14° | 69 mm | partly cloudy | 78% | 4.9 m/s | 1.2 high | 11.7h |
| October | Very Good | 12° - 22° | 17° | 112 mm | partly cloudy | 76% | 4.8 m/s | 1.8 very high | 12.8h |
| November | Excellent | 15° - 25° | 20° | 99 mm | some cloud | 71% | 4.8 m/s | 2.4 extreme | 13.8h |
| December | Excellent | 17° - 28° | 23° | 93 mm | some cloud | 68% | 4.7 m/s | 2.9 extreme | 14.3h |
How to Get to Costanera Sur Ecological Reserve
The reserve is on the eastern side of Puerto Madero in central Buenos Aires, so it is easy to reach on foot from Puerto Madero and the city centre.
Taxis and ride-hailing are straightforward in this area, and cycling also works well given the flat terrain and the reserve’s wide paths.
Tips for Visiting Costanera Sur Ecological Reserve
- Bring water and sun protection, there is little shade in many sections.
- Wear comfortable walking shoes, paths are long and the terrain is mostly flat.
- Pack insect repellent, especially near wetter areas and in warmer months.
- Take binoculars if you are interested in birds and other wildlife.
- Stick to marked paths to protect habitats and avoid muddy ground near wetlands.