Rio de Janeiro weather in December (Rio de Janeiro State, Brazil)

This month is known as a warm month. The average maximum daytime temperature in Rio de Janeiro in December lies at 29.3°C (84.74°F). The average minimum temperature goes down to around 21.6°C (70.88°F) (often the minimum temperature is noted at night).

Rainfall during December is high with an average of 163mm (6.4 inchec). This makes it the wettest month of the year. There are generally around 22 rainy days. The sun will show itself now and again, with 182 hours of sunshine during the entire month.

 

Rio de Janeiro, monthly averages in December

Show in Fahrenheit

Min Temperature 21 °C  

Max Temperature 29 °C  

Water Temperature 24 °C *  

Chance of Rain 74%  

Precipitation 163mm  

Rainy days 22 days  

Humidity 80% *  

Sunshine 182 hrs *  

Where to stay in Rio de Janeiro

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Where to go in Brazil in December

Find out more about the weather in Brazil in December and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

So what to wear in December? Visitors traveling to Rio de Janeiro should plan on bringing a totally waterproof coat since it will often be raining. However, also bring your summer cloths because it can be very warm or even hot. With a water temperature of around 24.0°C (75.2°F), this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in December.

Swimming

7/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Rio de Janeiro.

Our site offers climate and forecast data for every country in the world. Are you going to Brazil? On this website you can find historical weather averages for many cities in Brazil. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.