Treinta y Tres Weather in January
January in Treinta y Tres brings high temperatures, with highs of 30°C (86°F) and nights dropping to 18°C (64°F). Rainfall is on the higher side this month, averaging around 100 mm (3.9 in), so keep a rain jacket handy.
Rainfall in Treinta y Tres in January
Historically, the month has about 11 days of rain, averaging 100 mm (3.9 in) in total. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Treinta y Tres in January
In January, expect high temperatures in Treinta y Tres, with highs of 30°C (86°F) and lows of 18°C (64°F) at night. Conditions stay fairly consistent through the month, making it easier to plan what to wear. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. This month tends to be the warmest of the year. Light, comfortable clothing will serve you well.
Sunshine in Treinta y Tres in January
The days are predominantly sunny, with an estimated total of around 268 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.January in Treinta y Tres can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Uruguay, check out our Treinta y Tres's climate page.
Treinta y Tres Temperature in January
Min Temperature
18°C (64°F)
Max Temperature
30°C (86°F)
Chance of Rain
36%
Precipitation
100 mm (3.9 in)
Rainy days
11 days
Humidity
69%
Sunshine
268 hours
Percentage Sunshine
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Treinta y Tres typically stay consistent throughout January, with daily highs averaging around 30°C (86°F). Nights are pleasant, with lows typically ranging from 17°C (63°F) to 19°C (66°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Treinta y Tres in January
Browse day-by-day weather records for Treinta y Tres spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Treinta y Tres historical weather extremes in January
Based on weather observations in Treinta y Tres between 1981 and 2025, these are the recorded extremes during January.
- The hottest January day on record in Treinta y Tres reached 40°C (104°F) (January 14, 2022).
- The coldest January day was on January 10, 1999, with a maximum of 17°C (63°F).
- Treinta y Tres registered its coldest January night on January 26, 2005, with temperatures dropping to 7°C (45°F).
Best Places in Uruguay in January
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
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tolerable
unpleasant
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What to Wear in Treinta y Tres in January
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). High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Treinta y Tres in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Uruguay, check out our Treinta y Tres's climate page.
Temperature Rainfall Sunshine Humidity
See the full Treinta y Tres climate overview or explore weather in Uruguay.
