Weather in Rio De Janeiro in December 2024
- December is usually the wettest month of the year in Rio De Janeiro;
Average weather
Average temperature in Rio De Janeiro in December
The temperature in December is +31°C on average, with a range between a maximum of +39°C during the day and a minimum of +21°C at night.
The average maximum temperature goes down 39% by the end of the month, compared with the beginning of the month, from +32°C to +25°C.
Is Rio De Janeiro warm or cold in December?
Rio De Janeiro is typically warm in December.
Maximum temperatures go up compared to the previous month from +28°C to +29°C. The minimum temperature also goes up from +22°C to +23°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how December is compared to other months in Rio De Janeiro:
Water temperature in Rio De Janeiro in December
Water in Rio De Janeiro in December is Comfortable. It varies from +21°C to +27°C, with an average of +24°C. This is almost similar to the air temperature, which averages +29°C.
In December, water temperatures are average relative to the rest of the year:
Can you swim in Rio De Janeiro in December?
Climate in Rio De Janeiro in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +28°C | +29°C | +30°C | ||||
| Min. temperature | ||||||
| +16°C | +18°C | +18°C | ||||
| Max. temperature | ||||||
| +41°C | +39°C | +39°C | ||||
| Rainfall | ||||||
| 124 mm | 149 mm | 167 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +23°C | +24°C | +25°C | ||||
| Humidity | ||||||
| 78% | 79% | 78% | ||||
| Air pressure | ||||||
| 1012 HPa | 1010 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 4 | 3 | 5 | ||||
| Cloudy days | ||||||
| 5 | 4 | 3 | ||||
| Rainy days | ||||||
| 18 | 18 | 16 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December weather is still as ok as in November. It’s getting warmer as December arrives. The average maximum temperature goes up from +28°C to +29°C during the day. Prepare for more rain. Average rainfall goes from 124 mm to 149 mm. Humidity rises from 78% to 79%. The average wind speed doesn’t change much during December, staying around 3 m/s. The days becoming less sunny, going from 4 sunny days in November to 3 in December.
January brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Rio De Janeiro is gradually increasing during December, going from 3 m/s to 3 m/s over the course of the month.
Rain
How was the weather last December in Rio De Janeiro?
Climate Change over Years
The climate in Rio De Janeiro in December 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 December a good time to visit Rio De Janeiro?
Can you sunbathe in Rio De Janeiro in December?
Can you swim in Rio De Janeiro in December?
Is Rio De Janeiro rainy in December?
Is it sunny in Rio De Janeiro in December?
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, 2022.
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.