Climate & Weather Guide in Uruguay

Climate zones, seasonal temperatures, rainfall patterns, and best travel times

Uruguay has a generally mild, humid subtropical climate with small regional differences, making it one of South America's more predictable countries for year-round living. Using the 1991-2020 climatology, the country is warm to hot in summer, cool but rarely severe in winter, and receives rainfall in every season. The southeast near the Río de la Plata and Atlantic coast is slightly cooler and more maritime, while the north and northwest are warmer and somewhat wetter. For residents and expats, the main comforts are the absence of extreme cold and the strong seasonal rhythm, though humidity, wind, and occasional heat waves can be noticeable.

Summer Average

25-31°C

Winter Average

8-15°C

Climate Types

Humid subtropical

Annual Rainfall

950-1324 mm

Sunshine Hours

2,400-2,900 hrs/yr

Average Humidity

70-80%

Regional Climate Variations

Southern Coast and Montevideo Metro

This is the most maritime part of Uruguay, influenced by the Río de la Plata and nearby Atlantic conditions. Summers are warm rather than extremely hot, and winters are cool with frequent cloudy, damp days but little severe cold. Rain falls through the year, and wind can make the weather feel changeable even when temperatures are moderate. For many expats, this region offers the most familiar urban climate balance, with fewer temperature extremes than inland areas.

Summer:25-29°C

Winter:8-13°C

Moderate rainfall

Mild coastal summers, cool damp winters, steady humidity, and frequent breezes that soften heat but can make weather feel unstable.

Central Interior

The interior heartland is still humid subtropical, but it feels more continental than the coast because it is farther from the moderating influence of the sea. Summer afternoons can be hotter here, and winter mornings can be noticeably cooler, though frost and snow remain rare. Rain is spread across the year, with thunderstorms and frontal systems both contributing to precipitation. This zone suits residents who prefer a classic four-season rhythm without harsh seasonal extremes.

Summer:26-31°C

Winter:6-12°C

Moderate rainfall

Warmer summer afternoons, cooler winter nights, and a generally green landscape shaped by regular rain and passing weather fronts.

Northern Plains and Borderlands

The north and northwest are typically the warmest part of Uruguay and also among the wetter, with annual rainfall generally higher than in the south. Summers can feel more intense here, especially during humid spells, while winters remain mild and short. The climate supports year-round pasture and agriculture, but expats should expect summer heat, humidity, and occasional stormy weather. Compared with the coast, this region feels less breezy and more warm-season dominant.

Summer:27-32°C

Winter:7-13°C

High rainfall

Warm, humid, and green, with heavier rain than the south and summer conditions that can feel sticky and storm-prone.

Uruguay’s climate is broadly uniform but shifts from cooler, windier coastal conditions in the south to warmer and wetter conditions in the north. For residents and expats, it is attractive for its lack of extreme winter cold and generally manageable seasonal variation, though humidity, wind, and summer heat are important lifestyle factors.

More Insights for your Move to Uruguay

Comprehensive guides and data-driven analysis.

View all Uruguay Guides & Categories14 in-depth guides for expats & digital nomads

nestfainder.ai