Where to Travel: Latin America in September

September is a month of revelations. The Amazon’s dry season delivers its finest wildlife viewing in the last weeks of September before the rains begin. In Brazil, the Atlantic Coast is warming — Fernando de Noronha and Trancoso reaching their shoulder-season sweet spot of good weather and manageable visitation volume. Buenos Aires and Northern Patagonia are entering spring — the trees leafing, the light lengthening, the restaurant terraces refilling with people who have remembered that the outdoors exist. In the Andes, the dry season holds for one more precious month.

Central America

Guanacaste, Costa Rica

September is deep green season in Guanacaste — the Pacific rains at their maximum, the forest at its deepest green, and the wildlife active in ways that the dry season’s heat and scarcity cannot produce. The beaches are largely empty by international standards; the wildlife lodges operate at reduced capacity and correspondingly reduced rates; and the afternoon skies over the Gulf of Papagayo produce a quality of light that photographers specifically pursue in the rainy months. Leatherback sea turtles are completing their final nesting runs of the year.

South Caribbean Coast, Costa Rica

Costa Rica’s Caribbean coast in September is in its own dry window — the micro-summer that affects the Caribbean slope while the Pacific is at its rainiest. Puerto Viejo and Cahuita offer the Caribbean at its most beautiful and accessible, with the Afro-Caribbean cultural life of the coast — its Creole cooking, its reggae music tradition, its hand-built wooden fishing boats — available without the January-February crowd.

Panama

September in Panama offers the Canal in its rainiest and greenest context — the surrounding forest at its most extravagant, the birding in Soberania National Park at peak green-season density, and the Pacific coast increasingly accessible as the rains begin to ease in the second half of the month. September marks the beginning of the transition toward the Pacific dry season that will fully arrive in December.

Guatemala

September in Guatemala is Guatemala’s Independence Month — the 15th brings celebrations to every town and city, the school marching bands processing through colonial streets and village plazas in a national festival that is simultaneously official and entirely grassroots. Antigua’s celebrations are the most atmospheric, but the highland towns — Quetzaltenango, San Marcos, Chichicastenango — hold their own versions with a regional character that the capital cannot replicate.

Nicaragua

September in Nicaragua sees the final mass olive ridley nesting events of the year at Playa La Flor, and the Corn Islands off the Caribbean coast are in their most accessible period — the Caribbean crossing manageable, the reef conditions good. The country’s Green Season rates are at their most attractive, and the colonial cities of Granada and León in September offer the full cultural program without the high-season visitors.

El Salvador

September 15 is El Salvador’s Independence Day — celebrated with a particular intensity in a country that has rebuilt its cultural confidence significantly in recent decades. The surf season is at its final strong pulse on the Pacific coast, and the highland coffee farms around Chalchuapa and Apaneca are beginning to show the red of the new harvest.

Colombia

September continues Colombia’s Pacific humpback whale season — the whales preparing for their return migration to Antarctic feeding grounds as the month progresses, and the final weeks of September producing some of the most active aerial behavior of the season as the younger whales gain strength for the journey south. Buenos Aires, Colombia (the inland highland town, not the Argentine capital) holds a flower festival in September that fills its streets with arrangements of an artistry that reflects generations of cultural investment in the country’s rose-growing tradition.

Peru

Machu Picchu, Cusco & Sacred Valley

September is the final month of Peru’s high dry season — the Andean skies still clear and blue, the Inca Trail fully operational, and the visitor numbers beginning their gradual decline from July-August peaks. September offers the rare combination of peak dry-season conditions with slightly reduced visitor pressure — the school vacation crowds of Northern Hemisphere summer have returned home, and the spring rush has not yet begun. It is, for the informed traveler, one of Peru’s finest months.

Kuelap, Chachapoyas

September in the Chachapoyas region of northern Peru continues the dry season clarity that makes the Kuelap fortress and its cloud forest setting fully accessible. The aerial gondola delivers visitors above a forest canopy to a site of extraordinary pre-Columbian engineering on a ridge at 3,000 meters — the walls at their most dramatic in September’s clear afternoon light. The nearby Gocta Falls, one of the world’s tallest at 771 meters, is at a dependable flow in September.

Lake Titicaca

Lake Titicaca in September is transitioning from dry season to the first hints of the approaching wet season — the skies still clear, the air still crisp, and the lake’s surface color shifting from winter steel-blue to a warmer autumn register. The island communities are beginning their festival calendar as the harvest approaches: Amantani holds agricultural celebrations in September that offer cultural access of unusual depth.

Peruvian Amazon

September is the last great month of the Amazon dry season — the river beaches at their maximum extent, the wildlife at its most concentrated, and the macaw clay lick activity continuing at full force. The Tambopata Research Center in the Madre de Dios region offers one of the world’s most extraordinary wildlife experiences: the dawn boat journey to the clay lick, the first light revealing hundreds of macaws spiraling above the clay bank, the noise and color of their gathering filling the air for an hour each morning.

Brazil

The Pantanal

September is the final month of Pantanal jaguar peak season — the rains beginning to arrive in the second half of the month, the rivers starting their slow rise, and the jaguars making their most intensive use of the exposed riverbanks before the annual flood begins to cover the hunting grounds. The Cuiaba River boat safaris are at their most productive through mid-September, with sightings of multiple individuals — sometimes three or four jaguars visible on a single morning — providing the most concentrated jaguar experience available anywhere on earth.

Lencois Maranhenses, Maranhão

The Lencois Maranhenses National Park — 1,500 square kilometers of white sand dunes rising from the coastal lowlands of Maranhão, the valleys between them filled with rainstorm lagoons of turquoise and indigo from April through September — is at its absolute finest in September, when the lagoons are fullest and the contrast between white sand and blue water is at maximum intensity. The park is accessible from Sao Luis by 4WD, and the combination of the lagoons and the Maranhao coast’s extraordinary ecological diversity makes this one of Brazil’s most under-visited great landscapes.

Chapada Diamantina

September continues the Chapada Diamantina’s finest season — dry, navigable, and producing the landscape photography and trekking experiences that have made this highland plateau one of Brazil’s most rewarding interior destinations. The Poco Azul and Poço Encantado underwater caves are at their clearest in September’s low-water conditions, and the Fumacinha Waterfall continues its 340-meter freefall into the canyon below.

Fernando de Noronha

September marks the beginning of Fernando de Noronha’s finest season — the waters warming after the winter cold, the spinner dolphin pods increasingly active in the bay, and the visitor limits ensuring that the island retains the quality that makes it worth the logistical effort of arriving. The sea turtle nesting season is ending, with the final females of the year completing their nesting runs on the protected beaches.

The Amazon

September sees the beginning of the Amazon’s wet season in some regions while others remain in dry season — the timing varies by tributary and location, and this transitional period produces some of the most extraordinary wildlife encounters of the year as animals respond to the first flooding of the floodplains. The pink river dolphin is most visible in September as the rivers begin their rise, moving into previously inaccessible areas.

Ecuador

September in mainland Ecuador’s Pacific coast sees the warming of the coastal waters that begins the transition from the cool, whale-rich season to the warmer months ahead. The highland regions continue in dry season; the Amazon basin begins the transition toward the wet season, and the Yasuni National Park — accessible only by small plane and river from Coca — is in its final weeks of dry-season road-and-river navigability.

Argentina

Buenos Aires

September is Buenos Aires in early spring — the plane trees budding, the city shaking off the winter’s gray, and the restaurant terraces refilling with the alacrity of a city that has been waiting for the temperatures to justify outdoor dining. The Argentine Spring begins officially on September 21, but Buenos Aires begins its spring earlier in spirit: the flower stalls of San Telmo reopen, the MALBA museum launches its spring exhibition season, and the tango community at the milongas reflects the general elevation of mood.

Northern Patagonia

September is early spring in Northern Patagonia — the snow retreating from the lower elevations, the waterfalls above Bariloche running at full snowmelt volume, the first wildflowers appearing in the Valdivian rainforest understory, and the fly-fishing season preparing to open its first rivers in October. The lake district’s spring is among the most beautiful in the Southern Hemisphere — the lenga beech forests producing the same bright new-leaf green that makes European spring so celebrated, against a backdrop of Andean peaks.

Valdes Peninsula

September continues the Valdés Peninsula’s southern right whale season — the mothers and calves of the Golfo Nuevo and Golfo San José nurseries at their most active, the calves now three to four months old and increasingly capable of the aerial behaviors — breach, tail slap, spy-hop — that define the whale-watching experience at its most theatrical. The Punta Norte orca hunting ground, where killer whales intentionally beach themselves to catch sea lion pups, is active in September.

Why Book in Advance

September offers the informed traveler a genuine advantage: it is the last month of peak dry season in Peru and Bolivia, and the beginning of the finest season in Fernando de Noronha and the Pantanal — yet the booking pressure is somewhat less than the July-August peak. Pantanal jaguar safari boats for September fill in October the prior year. Fernando de Noronha September reservations require 6–9 months advance planning. Lencois Maranhenses in September is becoming known to sophisticated travelers and accommodation in the access towns is limited. Valdes Peninsula orca season boats have a small number of operators and book out for September quickly. The September traveler who plans a year ahead gains access to a month that combines quality and relative value in a rare combination.

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