December brings summer-like conditions and the start of the beach season, particularly around Punta del Este and other coastal hotspots. Expect higher prices and full bookings, especially around holiday dates.
Average daily low and high (°C) and monthly rainfall. The badge shows how it feels, allowing for humidity.
Average temperature across Uruguay in December.
Early summer heat returns in December and Montevideo hums with activity ahead of the holidays: daytime highs are regularly in the mid-to-high 20s°C with humid spells possible. The Rambla and Playa Ramírez are popular for sunset walks, and outdoor markets keep late hours; expect larger crowds and higher accommodation prices over the season. Include swimwear and a versatile layer for cooler nights along the river.
December returns the full energy of the season as holidaymakers arrive and daytime temperatures climb into the mid-to-high 20s°C. New Year’s parties and beach activity ramp up, with marine conditions typically calmer than the midwinter storms. Reserve accommodation and restaurants early and pack both your swimsuit and a light layer for breezy evenings along the peninsula.
December jumps into full summer with hot days and lively beach culture across Rocha; expect festival atmospheres at popular spots and busy coastal roads. Daytime highs can be in the upper 20s°C with humid spells and occasional short storms. Advance bookings for accommodation are wise for holiday weekends, and a sun hat, reef-friendly sunscreen and reusable water bottle are travel essentials.
December returns heat and activity, with ferry traffic increasing and Carmelo’s bodegas offering more public events during the lead-in to summer. Daytime temperatures commonly reach the mid-20s°C and the riverfront fills with locals and visitors taking advantage of longer evenings. If you plan to cross to Buenos Aires, book ferries early for holiday weekends.
Salto, Paysandú, Tacuarembó
By December summer warmth returns with a rise in outdoor events, markets and river recreation across the interior; daytime highs often sit in the high 20s°C. Holiday travel grows, and local tourist services absorb more visitors, so book ahead for popular estancia and thermal resorts. Afternoon storms remain possible, so an umbrella or packable rain jacket is still useful.
December marks the start of the main summer holiday season with Christmas and New Year celebrations and busy coastal resorts.
See how December compares with the rest of the year, then read the full guide.