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Rio de Janeiro climate: when to go to Rio de Janeiro

The climate of the city of Rio de Janeiro is tropical marine, hot and humid. Based on the rainfall we have two seasons, a rainy season between December and April, and a relatively dry season, between May and November. Temperatures vary relatively little over the seasons of the year, but the rainy season is also the hottest.

In the region of the city of Rio de Janeiro, the rainy season corresponds to the months between December and April, during which time the humidity is high and the average maximum temperatures are around 28 ° C. The average annual rainfall is about 1,200 mm, it rains on average 109 days a year.

Winter (June to September) is cooler and drier, the average maximum temperature is around 23 ° C. The average minimum temperatures vary between 23 ° C in February and 18 ° C in July.

Rio de Janeiro, Brazil. Author and copyright Marco Ramerini

Rio de Janeiro, Brazil. Author Marco Ramerini

The sea water temperature reaches the minimum temperature in August with 21 ° C, while in the period between January and April the sea water temperature is 26 ° C , this means that in Rio de Janeiro swimming in the sea is great all year round.


The best time for a trip to Rio de Janeiro are the coolest and less rainy months from May to November.


RIO DE JANEIRO (5 metres)
Month Average low (°C) Average high (°C) Precip. (mm) Precip. days
January 23,3 30,2 137,1  11
February 23,5 30,2 130,4  7
March 23,3 29,4 135,8  8
April 21,9 27,8 94,9  9
May 20,4 26,4 69,8  6
June 18,7 25,2 42,7  6
July 18,4 25,0 41,9  4
August 18,9 25,5 44,5  5
September 19,2 25,4 53,6  7
October 20,2 26,0 89,5  9
November 21,4 27,4 97,8  10
December 22,4 28,6 134,2  11
YEAR 21,0 27,3 1069,4  93
Month Sea Water Temperature °C
January 26
February 26
March 26
April 26
May 24
June 23
July 22
August 21
September 22
October 22
November 23
December 25

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