Colonia Rosario Weather in January
January in Colonia Rosario brings high temperatures, with highs of 30°C (86°F) and nights dropping to 19°C (66°F). Rainfall is on the higher side this month, averaging around 85 mm (3.3 in), so keep a rain jacket handy.
Rainfall in Colonia Rosario in January
Historically, approximately 9 days this month are expected to have rain, averaging 85 mm (3.3 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Colonia Rosario in January
January in Colonia Rosario brings typical temperatures with highs around 30°C (86°F) and lows of 19°C (66°F). This kind of day-to-night contrast is typical for this time of year. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. On average, this month sees the highest temperatures of the year. Worth packing a few lighter outfits.January in Colonia Rosario has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, 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 Colonia Rosario's climate page.
Colonia Rosario Temperature in January
Min Temperature
19°C (66°F)
Max Temperature
30°C (86°F)
Chance of Rain
31%
Precipitation
85 mm (3.3 in)
Rainy days
9 days
Daily Historical Temperatures
50-year average (1977-2026)
Based on our historical records, temperatures in Colonia Rosario typically stay consistent throughout January, with daily highs averaging around 30°C (86°F). Nights are pleasant, with lows around 20°C (68°F).
Average temperatures in January
Daily Historical Precipitation
50-year average (1977-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Colonia Rosario in January
Browse day-by-day weather records for Colonia Rosario spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Colonia Rosario historical weather extremes in January
Based on 46 years of weather observations in Colonia Rosario between 1979 and 2025, these are the recorded extremes.
- The warmest day in January was on January 14, 2022, with a maximum of 40°C (104°F).
- Colonia Rosario experienced its chilliest January day on January 31, 2005, reaching only 17°C (63°F).
- Colonia Rosario registered its coldest January night on January 15, 1981, with temperatures dropping to 11°C (52°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 →
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What to Wear in Colonia Rosario 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.What To Do in Colonia Rosario 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 Colonia Rosario's climate page.
See the full Colonia Rosario climate overview or explore weather in Uruguay.
