January weather forecast and climate
Rio de Janeiro, Brazil

Christ the Redeemer statue atop Mount Corcovado, overlooking the seaside city of Rio de Janeiro, Brazil
Christ the Redeemer statue atop Mount Corcovado, overlooking the seaside city of Rio de Janeiro, Brazil
January is usually the hottest month of the year in Rio de Janeiro, as the average high temperature climbs to 30°C (86°F). The days are hot, while the nights are warm and humid. The average humidity is high in the tropics and routinely crosses 80% in the long summer days.
The sunshine lasts for a daily 6.8 hours as cloudy skies are a common sight. January is the wettest month of the year with 137.2mm (5.4") and 11 rainy days, a few of which may bring torrential rainfall.
Rio de Janeiro is a famous tourist destination with rare slack periods. Prepare for rainy days and crowds around New Year in Rio!

What are the warmest months in Rio de Janeiro?

January and February, with an average high-temperature of 30.2°C (86.4°F), are warmest months.

What is the temperature in January in Rio de Janeiro?

In Rio de Janeiro, in January, the average high-temperature is 30.2°C (86.4°F), and the average low-temperature is 23.3°C (73.9°F).

How many days does it rain in January in Rio de Janeiro?

In Rio de Janeiro, Brazil, during January, the rain falls for 11 days and regularly aggregates up to 137.1mm (5.4") of precipitation.

What is the wettest month in Rio de Janeiro?

The month with the most rainfall in Rio de Janeiro is January when the rain falls for 11 days and typically aggregates up to 137.1mm (5.4") of precipitation.

What is the sea water temperature in January in Rio de Janeiro?

The average seawater temperature, in January, in Rio de Janeiro, Brazil, is 25.1°C (77.2°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
Average temperature in January - Rio de Janeiro, Brazil
  • Average high temperature in January: 30.2°C

Warmest months (with the highest average high temperature) are January and February (30.2°C).
The month with the lowest average high temperature is July (25°C).

  • Average low temperature in January: 23.3°C

The month with the highest average low temperature is February (23.5°C).
The coldest month (with the lowest average low temperature) is July (18.4°C).

Average humidity in January - Rio de Janeiro, Brazil
  • Average humidity in January: 79%

Months with the highest relative humidity are March, April, May, October and December (80%).
Months with the lowest relative humidity are July and August (77%).

Average rainfall in January - Rio de Janeiro, Brazil
  • Average rainfall in January: 137.1mm

The wettest month (with the highest rainfall) is January (137.1mm).
The driest month (with the lowest rainfall) is July (41.9mm).

Average rainfall days in January - Rio de Janeiro, Brazil
  • Average rainfall days in January: 11 days

Months with the highest number of rainy days are January and December (11 days).
The month with the lowest number of rainy days is July (4 days).

Average sea temperature in January - Rio de Janeiro, Brazil
  • Average sea temperature in January: 25.1°C

The best month for swimming (with the highest average sea temperature) is March (25.8°C).
The coldest month (with the lowest average sea temperature) is September (21.6°C).

Average daylight in January / Average sunshine in January - Rio de Janeiro, Brazil
  • Average daylight in January: 13.4h

The month with the longest days is December (Average daylight: 13.5h).
The month with shortest days is June (Average daylight: 10.7h).

  • Average sunshine in January: 6.8h

The month with most sunshine is February (Average sunshine: 7.2h).
Months with least sunshine are September and October (Average sunshine: 4.9).

Average UV index in January - Rio de Janeiro, Brazil
  • Average UV index in January: 12

Months with the highest UV index are January, February, March, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 5).

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