Serra dos Órgãos National Park

Brazil Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Brazil in December.

Planning a journey to Brazil this December and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Brazil in December

The weather in Brazil in December can be quite varied, with temperatures that range from warm to very hot and precipitation levels ranging from low to heavy.

Temperatures

The average maximum daytime temperatures vary from warm in São Joaquim national park at 24°C (75°F) to very hot in Sousa at 36°C (97°F). Nighttime temperatures generally drop to 24°C (75°F) in Sousa and 14°C (57°F) in São Joaquim national park. These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.

To learn more about the conditions in specific areas of Brazil, check out the map below.

Precipitation

In December, precipitation varies across different areas. From low rainfall in Galinhos with an average of 11 mm (0.4 in) to heavy rainfall in Visconde De Maua with 424 mm (17 in).

Average sunshine

Most areas see decent amounts of sunshine this month. Rio de Janeiro gets around 182 hours of sunlight, providing a pleasant balance of sun and clouds. If you'd prefer more guaranteed sunshine, our weather planner can show you sunnier spots around the world.

Explore Brazil by month

Pick a month to see the average temperature, rainfall and sunshine in Brazil - and find the best time to visit. (based on Rio de Janeiro)

Best Places to Visit in Brazil in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Brazil.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Brazil

What is the weather like in December for some of the most popular destinations in Brazil?

Temperature range in Brazil (December)

Precipitation variation in Brazil (December)

Rio de Janeiro

In December Rio de Janeiro generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are mixed that month.

November
December
January
Max temperature
29°C (84°F)
30°C (86°F)
31°C (88°F)
Min temperature
22°C (72°F)
23°C (73°F)
24°C (75°F)
Monthly sun hours
169 hours
182 hours
212 hours
Monthly rainfall
165 mm (6.5 in)
181 mm (7.1 in)
199 mm (7.8 in)
Monthly rainy days
19 days
21 days
20 days
Weather conditions

Sao Paulo

In December Sao Paulo generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 19°C (66°F) and heavy monthly rainfall. So on average the conditions are good that month.

November
December
January
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
17°C (63°F)
19°C (66°F)
19°C (66°F)
Monthly sun hours
163 hours
150 hours
170 hours
Monthly rainfall
165 mm (6.5 in)
195 mm (7.7 in)
251 mm (9.9 in)
Monthly rainy days
19 days
24 days
25 days
Weather conditions

Florianópolis

In December Florianópolis generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 21°C (70°F) and high monthly rainfall. So on average the conditions are very good that month.

November
December
January
Max temperature
26°C (79°F)
28°C (82°F)
29°C (84°F)
Min temperature
19°C (66°F)
21°C (70°F)
22°C (72°F)
Monthly sun hours
186 hours
188 hours
178 hours
Monthly rainfall
134 mm (5.3 in)
144 mm (5.7 in)
200 mm (7.9 in)
Monthly rainy days
21 days
22 days
24 days
Weather conditions

Gramado

In December Gramado generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 16°C (61°F) and heavy monthly rainfall. So on average the conditions are good that month.

November
December
January
Max temperature
26°C (79°F)
28°C (82°F)
28°C (82°F)
Min temperature
14°C (57°F)
16°C (61°F)
17°C (63°F)
Monthly rainfall
163 mm (6.4 in)
189 mm (7.4 in)
216 mm (8.5 in)
Monthly rainy days
17 days
18 days
21 days
Weather conditions

Fortaleza

In December Fortaleza generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 26°C (79°F) and moderate monthly rainfall. So on average the conditions are very good that month.

November
December
January
Max temperature
31°C (88°F)
31°C (88°F)
31°C (88°F)
Min temperature
26°C (79°F)
26°C (79°F)
25°C (77°F)
Monthly sun hours
290 hours
261 hours
221 hours
Monthly rainfall
14 mm (0.6 in)
37 mm (1.5 in)
105 mm (4.1 in)
Monthly rainy days
11 days
15 days
22 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Brazil.

Popular cities in December

Day & night temperatures, rainfall and average weather in Brazil in December.

City Weather Day temp Night temp Rainfall
Rio de Janeiro 30°C (86°F) 23°C (73°F) 181 mm (7.1 in)
Florianópolis 28°C (82°F) 21°C (70°F) 144 mm (5.7 in)
Sao Paulo 28°C (82°F) 19°C (66°F) 195 mm (7.7 in)
Fortaleza 31°C (88°F) 26°C (79°F) 37 mm (1.5 in)
Salvador 29°C (84°F) 25°C (77°F) 51 mm (2 in)
Foz do Iguaçu 32°C (90°F) 21°C (70°F) 194 mm (7.6 in)

Brazil weather in December: frequently asked questions

What is the weather like in Brazil in December?

In December, Brazil generally has less favorable weather conditions. Rio de Janeiro sees daytime temperatures near 30°C (86°F), with nights cooling to roughly 23°C (73°F).

What is the average temperature in Brazil in December?

Rio de Janeiro averages a daytime maximum of 30°C (86°F) in December, with overnight lows close to 23°C (73°F).

Does Brazil get a lot of rain in December?

Expect plenty of rainfall. Rio de Janeiro records an average of 181 mm (7.1 in) in December, putting it among the wetter months for Brazil.

Is December a Good Time to Visit Brazil?

In our opinion, December may not be the ideal time to visit Brazil due to the typically mixed weather in Rio de Janeiro.

Generally speaking, May, June, July, August and September provide excellent weather in Rio de Janeiro. In contrast, January and December tend to have less favorable weather conditions.

Interested in more climate information?

We have much more information about the climate in Brazil.

Weather and climate has detailed information for every country in the world. Are you going to Brazil? Get detailed 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 travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.