Weather in Rio De Janeiro in January 2025
Average weather
Average temperature in Rio De Janeiro in January
Going from a maximum of +35°C during the day to a minimum of +19°C during the night, the temperature in January averages around +29°C.
The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +28°C to +32°C.
Is Rio De Janeiro warm or cold in January?
Rio De Janeiro is typically warm in January.
Maximum temperatures go up compared to the previous month from +29°C to +30°C. The minimum temperature also goes up from +23°C to +24°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
January is one of the warmest months in Rio De Janeiro, here is the comparison with other months:
Water temperature in Rio De Janeiro in January
Water in Rio De Janeiro in January is Warm. It varies from +24°C to +27°C, with an average of +25°C. This is almost similar to the air temperature, which averages +30°C.
In January, water temperatures are average relative to the rest of the year:
Can you swim in Rio De Janeiro in January?
Climate in Rio De Janeiro in January
| December | January | February | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +29°C | +30°C | +31°C | ||||
| Min. temperature | ||||||
| +18°C | +18°C | +20°C | ||||
| Max. temperature | ||||||
| +39°C | +39°C | +38°C | ||||
| Rainfall | ||||||
| 149 mm | 167 mm | 123 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +24°C | +25°C | +25°C | ||||
| Humidity | ||||||
| 79% | 78% | 77% | ||||
| Air pressure | ||||||
| 1010 HPa | 1010 HPa | 1011 HPa | ||||
| Sunny days | ||||||
| 3 | 5 | 6 | ||||
| Cloudy days | ||||||
| 4 | 3 | 3 | ||||
| Rainy days | ||||||
| 18 | 16 | 13 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
January weather is still as ok as in December. It’s getting warmer as January arrives. The average maximum temperature goes up from +29°C to +30°C during the day. Prepare for more rain. Average rainfall goes from 149 mm to 167 mm. It feels drier, as humidity decreases from 79% to 78%. Winds are calmer in comparison to December, going down from 3 m/s to 2 m/s on average. The good news is there are likely to be more sunny days in January, from 3 to 5.
February brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Rio De Janeiro is gradually increasing during January, going from 3 m/s to 3 m/s over the course of the month.
Rain
How was the weather last January in Rio De Janeiro?
Climate Change over Years
The climate in Rio De Janeiro in January has not changed much over the last 43 years.
The average temperature was the lowest in 1989 (+26°C) and the highest in 2015 (+29°C). The driest year was 2001 with only 744 mm of rainfall, and the wettest year was 2019 with 2055 mm.
FAQ
Is January a good time to visit Rio De Janeiro?
Can you sunbathe in Rio De Janeiro in January?
Can you swim in Rio De Janeiro in January?
Is Rio De Janeiro rainy in January?
Is it sunny in Rio De Janeiro in January?
Other cities in Brazil
Monthly weather in Rio De Janeiro
Source of the data
For this page, we’ve looked at the typical weather in Rio De Janeiro, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.