BrazilThe weather in January in Rio de Janeiro
It's hot in January in Rio de Janeiro with an average temperature of 33°C. Temperatures this month range from a low of 31°C to a high of 35°C. At night, you can expect temperatures between 24°C and 25°C.
January is a good month to be in Rio de Janeiro for sunny weather. You’ll have high temperatures and not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in January for Rio de Janeiro, Brazil. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 39°C in 2015, Rio de Janeiro reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 21°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 18°C to a highest value of 28°C.
Rainfall amount
In January, there is an average of 84 mm of precipitation, spread over 12 days. The wind speed is around 4 Bft, mostly coming from the Southeast.
Daily weather in January for Rio de Janeiro
Click on any day in January to get detailed info about the usual weather on that day in Rio de Janeiro. Check out the historical temperatures and precipitation over the past 10 years on this day.
January weather comparison
| Rio de Janeiro | New York | |
|---|---|---|
| Average temperature | 33°C | 5°C |
| Max. temperature | 35°C | 11°C |
| Min. temperature | 24°C | -5°C |
| Total precipitation | 84 mm | 97 mm |
| Rainy days | 12 days | 12 days |
Start of January
The month of January starts in Rio de Janeiro with hot temps, averaging around 33°C during the day and nights around 25°C.
Mid January
By mid-January, daytime temps stay steady at around 33°C, with nights around 25°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of January
By the end of January, the average daytime temperature in Rio de Janeiro is around 34°C, while nighttime temps are about 25°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Rio de Janeiro for all months and discover the best travel time
Curious about the weather in other parts of Brazil? Check out the climate and weather for spots like Salvador, Pipa, Recife, or explore other destinations in Brazil.
Temperature charts
These charts show the average temperatures in January in Rio de Janeiro, Brazil. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in January in Rio de Janeiro
Temperature in January in Rio de Janeiro over the years
Precipitation charts
These charts show the average amount of precipitation in January in Rio de Janeiro, Brazil. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in January in Rio de Janeiro
Total precipitation in January in Rio de Janeiro over the years
Daily UV index in January in Rio de Janeiro
This chart shows the average daily UV index in January in Rio de Janeiro, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in January in Rio de Janeiro
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Average weather in Rio de Janeiro by month
Click on a month below to see detailed weather info for Rio de Janeiro. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.