Rio de Janeiro

Rio de Janeiro State Weather in January

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

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Rio de Janeiro Paraty Búzios Cabo Frio

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

What to Expect in Rio de Janeiro State in January

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

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is warm in Arraial do Cabo at 27°C (81°F) to very warm in Campos dos Goytacazes at 33°C (91°F). Nighttime temperatures generally drop to 23°C (73°F) in Campos dos Goytacazes and 24°C (75°F) in Arraial do Cabo. The temperatures mentioned for both day and night are typical averages. However some days might get even hotter. It's best to stay prepared by wearing cloths suitable for the warmth.

For specific regional insights in Rio de Janeiro State, Brazil, refer to the map provided below.

Precipitation

In January, precipitation varies across different areas. From moderate rainfall in Arraial do Cabo with an average of 99 mm (3.9 in) to heavy rainfall in Paraty with 510 mm (20 in). Going by our weather data, it is the wettest month of the year in Rio de Janeiro.

Average sunshine

Several destinations enjoy plenty of sunshine this month. Rio de Janeiro sees close to 212 hours of sunlight, making it great for sun lovers.

Explore Rio de Janeiro State by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in Rio de Janeiro State in January

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

Conditions Temperatures Precipitation
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 January for some of the most popular destinations in Rio de Janeiro State, Brazil?

Temperature range in Rio de Janeiro State (January)

Precipitation variation in Rio de Janeiro State (January)

Rio de Janeiro

In January Rio de Janeiro generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« December
January
February »
December
January
February
Max temperature
30°C (86°F)
31°C (88°F)
32°C (90°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly sun hours
182 hours
212 hours
202 hours
Monthly rainfall
181 mm (7.1 in)
199 mm (7.8 in)
157 mm (6.2 in)
Monthly rainy days
21 days
20 days
16 days
Weather conditions
unpleasant
unpleasant
tolerable
Climate in Rio de Janeiro →

Búzios

In January Búzios generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« December
January
February »
December
January
February
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly rainfall
136 mm (5.4 in)
123 mm (4.8 in)
88 mm (3.5 in)
Monthly rainy days
21 days
20 days
15 days
Weather conditions
pleasant
pleasant
perfect
Climate in Búzios →

Paraty

In January Paraty generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

« December
January
February »
December
January
February
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
22°C (72°F)
23°C (73°F)
23°C (73°F)
Monthly sun hours
92 hours
104 hours
108 hours
Monthly rainfall
418 mm (16 in)
510 mm (20 in)
445 mm (18 in)
Monthly rainy days
20 days
19 days
16 days
Weather conditions
poor
poor
poor
Climate in Paraty →

Cabo Frio

In January Cabo Frio generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and high monthly rainfall. So on average the conditions are pleasant that month.

« December
January
February »
December
January
February
Max temperature
27°C (81°F)
28°C (82°F)
28°C (82°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly rainfall
124 mm (4.9 in)
114 mm (4.5 in)
81 mm (3.2 in)
Monthly rainy days
21 days
20 days
15 days
Weather conditions
pleasant
pleasant
perfect
Climate in Cabo Frio →

Ilha Grande

In January Ilha Grande generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 24°C (75°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

« December
January
February »
December
January
February
Max temperature
27°C (81°F)
28°C (82°F)
29°C (84°F)
Min temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Monthly rainfall
181 mm (7.1 in)
226 mm (8.9 in)
180 mm (7.1 in)
Monthly rainy days
21 days
20 days
16 days
Weather conditions
tolerable
unpleasant
pleasant
Climate in Ilha Grande →

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

In our records: Brazil January extremes

Notable January records observed across cities in Brazil in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest January day in Brazil reached 43°C (109°F) in Rio de Janeiro on January 22, 1988.
  • From our sources, the wettest January day in Brazil brought 318 mm (13 in) in Balneário Camboriú on January 31, 2008.

Popular cities in January

Day & night temperatures, rainfall and average weather in Rio de Janeiro State in January.

City Weather Day temp Night temp Rainfall
Rio de Janeiro 31°C (88°F) 24°C (75°F) 199 mm (7.8 in)
Paraty 28°C (82°F) 23°C (73°F) 510 mm (20 in)
Búzios 28°C (82°F) 24°C (75°F) 123 mm (4.8 in)
Cabo Frio 28°C (82°F) 24°C (75°F) 114 mm (4.5 in)
Ilha Grande 28°C (82°F) 24°C (75°F) 226 mm (8.9 in)
Arraial do Cabo 27°C (81°F) 24°C (75°F) 99 mm (3.9 in)

Rio de Janeiro State weather in January: frequently asked questions

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

January in Rio de Janeiro State, Brazil brings poor weather. In Rio de Janeiro, daytime temperatures are typically around 31°C (88°F) and nighttime lows hover near 24°C (75°F).

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

In Rio de Janeiro, the average daytime high in January is 31°C (88°F), while nighttime temperatures drop to around 24°C (75°F).

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

Rainfall in Rio de Janeiro State, Brazil peaks during January. Rio de Janeiro averages roughly 199 mm (7.8 in), so frequent and sometimes heavy showers are the norm.

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

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

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 weather in January and December tend to be poor.

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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