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January in Montevideo averages 27°C (81°F) during the day and 19°C (66°F) at night. With just 74 mm (2.9 in) of rainfall on average, it doesn't get much drier than this.
If you're inclined towards comfortable temperatures and drier conditions, January is a good time to visit Montevideo.
Pick a month to see the average temperature, rainfall and sunshine in Montevideo - and find the best time to visit.
51-year average (1976-2026)
Based on our historical records, temperatures in Montevideo typically stay consistent throughout January, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows around 18°C (64°F).
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Montevideo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 49 years of weather observations in Montevideo between 1976 and 2025, these are the recorded extremes.
Find out more about the weather in Uruguay and which places have the best travel conditions in this month. See all of Uruguay in January →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm weather calls for comfortable, breathable clothing in January. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Rain is likely on several days, so bring a good rain jacket. Expect water temperatures of around 24°C (75°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Montevideo climate overview or explore weather in Uruguay.
Where to go in January - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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