Rio de Janeiro

Rio de Janeiro State Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Rio de Janeiro State, Brazil in December.

Thinking about venturing to Rio de Janeiro State, Brazil this December and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Rio de Janeiro State in December

Rio de Janeiro State, Brazil is a region in Brazil. December in Rio de Janeiro State generally has temperatures that range from warm to very warm, with precipitation levels ranging from high to heavy.

Temperatures

The average highest temperatures fluctuate between warm in Arraial do Cabo at 26°C (79°F) to very warm in Campos dos Goytacazes at 32°C (90°F). Nighttime temperatures generally drop to 23°C (73°F) in Campos dos Goytacazes and 23°C (73°F) in Arraial do Cabo. The temperatures cited for both day and night represent usual averages, but it's possible some days could be hotter. It's advisable to dress accordingly to handle the heat.

For a closer look at conditions across Rio de Janeiro State, Brazil, refer to the map below.

Precipitation

In December, precipitation varies across different areas. From high rainfall in Arraial do Cabo with an average of 108 mm (4.3 in) to heavy rainfall in Visconde De Maua with 424 mm (17 in).

Average sunshine

Sunshine levels are moderate in most locations. Rio de Janeiro typically sees 182 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore Rio de Janeiro State by month

Best Places to Visit in Rio de Janeiro State in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Rio de Janeiro State.

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 Rio de Janeiro State

What is the weather like in December for some of the most popular destinations in Rio de Janeiro State, Brazil?

Temperature range in Rio de Janeiro State (December)

Precipitation variation in Rio de Janeiro State (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 unpleasant 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

Búzios

In December Búzios generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 23°C (73°F) and high monthly rainfall. So on average the conditions are pleasant that month.

November
December
January
Max temperature
26°C (79°F)
27°C (81°F)
28°C (82°F)
Min temperature
22°C (72°F)
23°C (73°F)
24°C (75°F)
Monthly rainfall
139 mm (5.5 in)
136 mm (5.4 in)
123 mm (4.8 in)
Monthly rainy days
20 days
21 days
20 days
Weather conditions

Paraty

In December Paraty generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 22°C (72°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
25°C (77°F)
27°C (81°F)
28°C (82°F)
Min temperature
20°C (68°F)
22°C (72°F)
23°C (73°F)
Monthly sun hours
83 hours
92 hours
104 hours
Monthly rainfall
329 mm (13 in)
418 mm (16 in)
510 mm (20 in)
Monthly rainy days
17 days
20 days
19 days
Weather conditions

Cabo Frio

In December Cabo Frio generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 23°C (73°F) and high monthly rainfall. So on average the conditions are pleasant that month.

November
December
January
Max temperature
26°C (79°F)
27°C (81°F)
28°C (82°F)
Min temperature
22°C (72°F)
23°C (73°F)
24°C (75°F)
Monthly rainfall
126 mm (5 in)
124 mm (4.9 in)
114 mm (4.5 in)
Monthly rainy days
20 days
21 days
20 days
Weather conditions

Ilha Grande

In December Ilha Grande generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

November
December
January
Max temperature
25°C (77°F)
27°C (81°F)
28°C (82°F)
Min temperature
21°C (70°F)
23°C (73°F)
24°C (75°F)
Monthly rainfall
168 mm (6.6 in)
181 mm (7.1 in)
226 mm (8.9 in)
Monthly rainy days
18 days
21 days
20 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Rio de Janeiro State, in Brazil.

Popular cities in December

Day & night temperatures, rainfall and average weather in Rio de Janeiro State 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)
Paraty 27°C (81°F) 22°C (72°F) 418 mm (16 in)
Búzios 27°C (81°F) 23°C (73°F) 136 mm (5.4 in)
Cabo Frio 27°C (81°F) 23°C (73°F) 124 mm (4.9 in)
Ilha Grande 27°C (81°F) 23°C (73°F) 181 mm (7.1 in)
Arraial do Cabo 26°C (79°F) 23°C (73°F) 108 mm (4.3 in)

Rio de Janeiro State weather in December: frequently asked questions

What is the weather like in Rio de Janeiro State, Brazil in December?

December in Rio de Janeiro State, Brazil brings poor weather. In Rio de Janeiro, daytime temperatures are typically around 30°C (86°F) and nighttime lows hover near 23°C (73°F).

What is the average temperature in Rio de Janeiro State, Brazil in December?

In Rio de Janeiro, the average daytime high in December is 30°C (86°F), while nighttime temperatures drop to around 23°C (73°F).

Does Rio de Janeiro State, Brazil get a lot of rain in December?

Rainfall in Rio de Janeiro State, Brazil peaks during December. Rio de Janeiro averages roughly 181 mm (7.1 in), so frequent and sometimes heavy showers are the norm.

Is December a Good Time to Visit Rio de Janeiro State, Brazil?

Given the typically unpleasant weather conditions in Rio de Janeiro, December may not be the ideal time to visit Rio de Janeiro State, Brazil.

Generally speaking, the best visiting conditions can be found in May, June, July, August and September offering mostly perfect weather in Rio de Janeiro. On the other hand, the months of January and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Rio de Janeiro State.

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.

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