Rio de Janeiro Weather in January
January in Rio de Janeiro brings very high temperatures, with highs of 31°C (88°F) and nights dropping to 24°C (75°F). It's the rainiest month of the year, so come prepared with waterproof gear.
Rainfall in Rio de Janeiro in January
This month experiences the most intense rain of the year, with heavy showers. Be prepared with a poncho to stay dry. Historically, approximately 20 days this month are expected to have rain, averaging 199 mm (7.8 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Rio de Janeiro in January
In January, expect very high temperatures in Rio de Janeiro, with highs of 31°C (88°F) and lows of 24°C (75°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. Nights are warm at 24°C (75°F). It's worth making sure your accommodation has decent ventilation or air conditioning.
Sunshine in Rio de Janeiro in January
The month enjoys around 212 hours of sunshine, creating mostly sunny days with good weather conditions.
Wind Speed in Rio de Janeiro in January
Average wind speeds reach 3 m/s (6 knots) in January, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.
Average water temperature in January
At 25°C (77°F), the water is warm and comfortable for swimming. Most people find this temperature ideal for spending longer periods in the water.If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Rio de Janeiro. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Brazil, check out our Rio de Janeiro's climate page.
Rio de Janeiro Temperature in January
Min Temperature
24°C (75°F)
Max Temperature
31°C (88°F)
Water Temperature
25°C (77°F)
Chance of Rain
67%
Precipitation
199 mm (7.8 in)
Rainy days
20 days
Humidity
79%
Windspeed
3 m/s (6 knots)
Sunshine
212 hours
Percentage Sunshine
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Rio de Janeiro typically stay consistent throughout January, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 24°C (75°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 Rio de Janeiro in January
Browse day-by-day weather records for Rio de Janeiro spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rio de Janeiro historical weather extremes in January
Based on weather observations in Rio de Janeiro between 1976 and 2025, these are the recorded extremes during January.
- The warmest day in January was on January 22, 1988, with a maximum of 43°C (109°F).
- The coldest January day was on January 7, 2023, with a maximum of 21°C (70°F).
- Rio de Janeiro registered its coldest January night on January 23, 2008, with temperatures dropping to 18°C (64°F).
- Peak precipitation in January occurred on January 31, 2006, when 74 mm (2.9 in) of precipitation was measured.
Best Places in Brazil in January
Find out more about the weather in Brazil and which places have the best travel conditions in this month. See all of Brazil in January →
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What to Wear in Rio de Janeiro 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). Also bring a poncho, it will rain a lot! Waterproof everything you can. Expect water temperatures of around 25°C (77°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.What To Do in Rio de Janeiro 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 Brazil, check out our Rio de Janeiro's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Rio de Janeiro climate overview or explore weather in Brazil.
