January is high summer across Uruguay with hot beach weather, long daylight and busy coastal resorts. Expect higher prices and crowded beaches, particularly around Montevideo and Punta del Este.
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Average temperature across Uruguay in January.
High summer in Montevideo is humid and lively, with daytime highs often in the high 20s-low 30s°C (mid 80s F). The Rambla fills with swimmers and cyclists and the city’s outdoor cafés are buzzing; bring light clothing, sun protection and expect crowded beaches on weekends. Sudden late-afternoon storms can puncture heat waves, but they usually pass quickly and leave clearer air and cooler evenings suitable for a stroll through Ciudad Vieja.
Peak summer sun and ocean-swim conditions in January make Punta del Este and La Barra come alive; daytime temperatures commonly sit in the high 20s°C with humid spells. Beach clubs, boat charters and restaurants are full, and José Ignacio attracts a fashionable crowd. Bring sunscreen and reserve restaurants and accommodation well ahead - traffic and parking around Playa Brava can be difficult on holiday weekends.
January is full summer at Cabo Polonio and Punta del Diablo: warm, sometimes humid days and lively beaches draw locals and independent travellers. Sandy tracks to the remote dunes can get hot in the sun, so bring water and sun protection; nighttime bonfires and low-key beach bars are part of the local vibe. Ferry and access to Cabo Polonio are usually steady unless a southerly storm stirs the sea.
January is warm along Colonia’s cobbled streets and Carmelo’s riverside vineyards, with highs in the mid-to-high 20s°C and abundant sunshine. Ferries from Buenos Aires are frequent but expect busy crossings and higher prices during holidays; book ahead. Historic Colonia del Sacramento is lively with day-trippers and café terraces full - bring sun protection and a bottle of local wine for a riverside picnic.
Salto, Paysandú, Tacuarembó
January can be hot and humid across the northwest plains around Salto and Paysandú, with daytime temperatures frequently cracking the low to mid 30s°C. River beaches and thermal resorts like Termas del Daymán (near Salto) are busy refuges from the heat and great for families; bring sun protection and expect lively local weekend crowds. Sudden afternoon thunderstorms are typical and can make rural dirt roads muddy.
January is mid-summer in Uruguay and a peak period for beach holidays, especially in Punta del Este and the coast.
See how January compares with the rest of the year, then read the full guide.