Uruguay

Uruguay enters the climate century carrying a paradox that will define its tourism future for the rest of the hundred. It is one of the planet's best-positioned destinations on the two variables that tend to matter most for long-horizon sustainability — energy and governance — while remaining acutely exposed on the two that tend to matter most for a small coastal economy — water and shoreline. Roughly ninety-nine percent of its electricity in 2024 came from renewable sources, with hydropower contributing about forty-two percent, wind twenty-eight percent, biomass twenty-six percent and solar three percent, and fossil generation reduced to a vestigial one percent. For ten consecutive months across 2023 and 2024, the grid ran entirely on renewables. This is the most defensible green-destination claim in the Americas, and it sits inside a political system widely regarded as Latin America's most stable democracy, one that completed its forty-year mark since the return from dictatorship with the smooth March 2025 inauguration of President Yamandú Orsi. Yet the same country experienced its worst drought in seventy-four years in 2022 and 2023, watched the Paso Severino reservoir that supplies most of metropolitan Montevideo fall to less than two percent of capacity, and saw its state water utility mix brackish Río de la Plata water into the capital's taps. Every serious projection of Uruguay's tourism trajectory to 2100 has to hold these two truths at once. 

The dominant climate signal across Southeastern South America is not gradual drying but intensifying volatility around a wetting mean. Mean precipitation across the region is projected to increase with high confidence, alongside more intense and more frequent extreme rainfall and pluvial flooding. Temperatures will rise faster than the global average. Under a central pathway corresponding to roughly 2.7 degrees of global warming by 2100, Uruguay should therefore expect more water in aggregate but more variability in distribution: heavier rain when it comes, longer dry spells when it does not, and more heat layered on top. The drought paradox is not a contradiction of the wetting signal but its hidden cost. When extreme heat, expanding agro-industrial demand and underinvestment in storage converge, a wetting climate can still deliver a water emergency. For a tourism economy whose beaches, vineyards, wetlands and thermal springs all depend on water in different ways, the implication is that drought-flood whiplash will be a more useful planning concept than any single trend line.

The coast tells a parallel story. Global mean sea-level rise by 2100 is assessed as a likely range of 0.44 to 0.76 metres under the central pathway, with the South Atlantic rising faster than the global mean and shoreline retreat along most sandy coasts assessed with high confidence. Observed trends in Uruguay already point in that direction. Sea level at Montevideo has risen roughly eleven centimetres since the early twentieth century, and the Rocha coast more than twenty centimetres since 1955. Part of this is driven not by thermal expansion but by long-term increases in the streamflow of the Paraná and Uruguay rivers, which raise estuary levels independently of ocean warming. The Río de la Plata, in other words, is governed by both ocean and river dynamics, and both are pushing in the same direction. Uruguay's National Adaptation Plan for the Coastal Zone already classifies coastal-resource vulnerability as high. The Montevideo Rambla, the port, the low-lying historic quarter of Colonia del Sacramento, and the wild Atlantic beaches of Rocha all face inundation, erosion and storm-surge amplification on a horizon that is no longer abstract.

Demography compresses the planning window further. The United Nations medium-variant projection has Uruguay falling from roughly 3.39 million people in 2024 to about 2.25 million by 2100, with the median age climbing above fifty-four and life expectancy reaching the late eighties. This makes Uruguay the oldest and slowest-growing society in South America, with consequences that pull in different directions for tourism. The domestic travel market and the seasonal hospitality labour force both contract, intensifying reliance on foreign visitors and on labour-substituting technology. An aging, high-income, high-life-expectancy population reinforces the strategic logic of wellness, thermal and slow cultural tourism oriented to older and higher-spending guests. The economic case for automation strengthens at exactly the moment when the case for higher-value, lower-volume tourism does — and these two arguments converge on the same answer.

Within that frame, the country's destinations are sorting themselves into distinct climate trajectories. Punta del Este and the wider Maldonado coast, which overtook Montevideo as the most-visited department in recent monitoring, will benefit from a lengthening warm season for high-value beach and luxury-real-estate tourism, but will require sustained sand nourishment, setback regulation and managed-retreat planning in the most exposed sectors. Colonia del Sacramento, the Portuguese-founded historic quarter inscribed by UNESCO in 1995, sits low on the river and is among the most flood-exposed heritage assets in the country. Montevideo functions as both cultural-business gateway and the principal cruise port, its 22-kilometre Rambla and old-city neighbourhoods carrying significant adaptation costs as the century progresses. Rocha department, with Cabo Polonio, Punta del Diablo and La Paloma, is the country's ecotourism frontier and its most erosion-exposed coast; Cabo Polonio's working model of access-restricted, off-grid tourism inside a national park of more than 25,000 hectares is precisely the kind of carrying-capacity discipline that climate and overtourism pressures will demand more widely. Further east, the Bañados del Este — Uruguay's first Ramsar site, designated in 1984 and covering more than 400,000 hectares, paired with a UNESCO Man and the Biosphere reserve and the Laguna de Rocha — together form a wetland-tourism complex of international significance whose hydrology, salinity and birding value will all be reshaped by sea-level rise and shifting rainfall.

Two sectors stand out as climate-adjusted opportunities. Uruguayan viticulture, built around Tannat planted on more than 1,570 hectares of clay-calcareous soils and accounting for roughly a quarter of national vineyard acreage, has comparative resilience in a continent where western Argentina and Chile face a drying future. The wetting signal and the moderating influence of the Atlantic and the Río de la Plata work in its favour. The industry is already adapting by expanding eastward into the Atlantic-cooled hills around Garzón and José Ignacio in Maldonado in search of freshness, and by diversifying varietally into Albariño for whites and into Marselan and Arinarnoa, Bordeaux-blend reds bred for warmer and more humid conditions. The result is a maturing wine circuit that links Canelones, Montevideo, Colonia, Carmelo and Maldonado, well-suited to the higher-spending long-haul visitor. The thermal corridor in Salto and Paysandú offers a parallel opportunity. Six centres — Daymán, Arapey, Guaviyú, Salto Grande, San Nicanor and Almirón — draw water from the transboundary Guarani Aquifer at temperatures between thirty-eight and forty-six degrees Celsius. As summers grow hotter, inland thermal-wellness tourism could function as a climate-refuge and shoulder-season product, with operators already moving toward clinical thermalism and medical wellness. Both opportunities are bound, however, by the same constraint.

Water is Uruguay's master variable, and tourism sits at the intersection of every demand on it. The Guarani Aquifer feeds the thermal circuit but is shared with Argentina, Brazil and Paraguay, and competes with rice, soy, pulp and the cooling needs of data centres. The 2023 crisis demonstrated how quickly that competition becomes political: with metropolitan drinking water compromised, public anger fused around agro-industrial water use and the proposed Google data centre at Canelones, whose initial design was projected to draw up to 7.6 million litres of potable water per day, equivalent to the domestic daily use of around 55,000 people. Sustained civil-society pressure produced the protest slogan "no es sequía, es saqueo" — "it's not drought, it's pillage" — and ultimately forced a redesign to air cooling with energy consumption capped below 560 gigawatt-hours per year. To 2100, the sustainability of thermal tourism, the credibility of data-centre ambitions, and the social licence for tourism growth all depend on transparent, enforceable water-allocation governance and on real infrastructure investment in storage, treatment and leak reduction.

Artificial intelligence is the technology around which most of these tensions will be resolved or worsened. Uruguay is unusually well-placed to harness it. Plan Ceibal has provided laptops and connectivity to public-school children since 2007; household internet penetration is around ninety-one percent; the AGESIC agency runs a mature e-government stack; and the National Artificial Intelligence Strategy 2024–2030, approved in November 2024 under Law No. 20.212, sets a human-rights-centred governance framework. Uruguay was among the first Latin American countries to engage the Council of Europe's AI Convention and hosted the regional UNESCO AI-ethics ministerial in Montevideo in 2024. Crucially, AI services run on Uruguayan soil can be powered by a near-fully renewable grid, which makes "green AI" a genuine comparative advantage rather than a marketing line. The concrete tourism applications are tangible: monitoring of the Bañados del Este and the Rocha lagoons for species, salinity and land-use change; beach-erosion and storm-surge modelling to guide coastal adaptation; carrying-capacity and flow management at fragile protected areas; multilingual heritage interpretation at Colonia, Fray Bentos and the Church of Atlántida; and AI-supported precision agriculture for the estancia and wine sectors. The negatives travel in the opposite direction: hyperscale compute is water- and energy-hungry, even air-cooled facilities shift load onto a grid that during drought has fallen back on fossil backup, recommendation engines can concentrate visitors into already-saturated Punta del Este and Colonia, and surveillance technologies could erode the civil-liberties advantage that distinguishes Uruguay in its region. Institutional strength gives Uruguay a fighting chance to govern these risks. It does not guarantee the outcome.

Heritage adaptation will be among the defining tasks of the century. Uruguay holds three UNESCO World Heritage sites — Colonia del Sacramento, the Fray Bentos Industrial Landscape inscribed in 2015 for the former Liebig and Anglo meat-packing plant, and the Church of Atlántida by Eladio Dieste, inscribed in 2021 for its brick-vault architecture — alongside Candombe and Tango on the Intangible Cultural Heritage list. Rising groundwater is already threatening the underground baptistery at Atlántida, prompting the installation of a water-table monitoring mechanism. Colonia's riverside quarter is flood-exposed. Coastal heritage along the Rambla and at Piriápolis faces surge and erosion. Embedding climate-risk assessment and AI-assisted monitoring into heritage management is no longer optional; it is the standard practice the next decades will require.

What holds the whole picture together is governance. Uruguay's competitive edge for long-horizon sustainable-tourism investment is institutional more than physical. It consistently ranks as the region's best performer on corruption indices, carries Latin America's lowest inequality and largest middle class, and has just demonstrated a peaceful alternation between political coalitions. That quality of government is the precondition that allows Uruguay to plan and finance multi-decadal coastal adaptation, water infrastructure, protected-area management and AI governance — the connective tissue of credible sustainable tourism. The country's tourism remains structurally dependent on Argentina, which supplied roughly two-thirds of its 2025 visitors and transmits its own macroeconomic volatility directly into Uruguayan arrival figures. A deliberate shift toward higher-value, longer-haul European and North American segments around four resilient products — wine, wellness, heritage and nature — is the clearest hedge, and it aligns naturally with the low-carbon, climate-resilient destination that Uruguay is uniquely placed to be.

The story that emerges from a careful reading of Uruguay's prospects is therefore neither triumphal nor catastrophic. It is a story of a small, capable, low-carbon republic between river and ocean, holding genuine advantages on energy, governance and digital readiness against genuine vulnerabilities on water, coast and demography. Whether the country reaches 2100 as the renewable, climate-resilient quality destination its assets suggest depends less on what the climate does than on what its institutions choose. On present form, those institutions have earned the benefit of the doubt.