When to go · Brazil

When to go to Rio de Janeiro

Twelve months of averages for Rio de Janeiro, and what they say about when to go.

When to go

What the averages say

Mean daily highs and lows and the month's rain, averaged over 2001 to 2020.

On these averages, Rio de Janeiro has a mean high between 18°C and 32°C and under 150 mm of rain in April to October.

Of those months, it is also dry (under 50 mm of rain) and not humid in June and July.

Wet months (150 mm of rain or more): November to March.
Humid months (a high of 25°C or more with relative humidity of 70% or more): August to May.
The warmest month is February (28°C) and the coolest July (24°C). The wettest is December (232 mm) and the driest August (42 mm); about 1,470 mm of rain falls in a year.

How these sentences are worded

Each sentence is written from the figures by fixed rules, and says no more than they do. Mild to warm: a mean daily high from 18°C up to 32°C. Hot: 32°C or more. Cool: 10°C up to 18°C. Cold: under 10°C. Dry: under 50 mm of rain in the month; wet: 150 mm or more. Humid: a high of 25°C or more with relative humidity of 70% or more. A month is described as good for going when it is mild to warm and not wet.

Rio de Janeiro: highs, lows and rainHighLowRain

The year at a glance

Mild to warm and dry
Mild to warm, humid or showery
Hot
Cool
Wet
Cold

JanWet
FebWet
MarWet
AprMild–warm, mixed
MayMild–warm, mixed
JunMild–warm, dry
JulMild–warm, dry
AugMild–warm, mixed
SeptMild–warm, mixed
OctMild–warm, mixed
NovWet
DecWet

Month by month

Every month in Rio de Janeiro

The whole year, with humidity, cloud and the sunlight reaching the ground.

Climate in Rio de Janeiro by month: mean daily high and low, rain, and what the month is like
Month	High	Low	Rain	Humidity	Cloud	Sunlight (kWh/m²/day)	High in Dubai	What it is like
January	28°C	23°C	208 mm	83%	71%	5.8	23°C	Wet
February	28°C	23°C	152 mm	82%	62%	6	24°C	Wet
March	28°C	23°C	173 mm	83%	66%	5.1	27°C	Wet
April	27°C	22°C	101 mm	82%	56%	4.5	31°C	Mild to warm, humid or showery
May	25°C	20°C	71 mm	80%	56%	3.7	35°C	Mild to warm, humid or showery
June	24°C	19°C	49 mm	80%	49%	3.5	37°C	Mild to warm and dry
July	24°C	18°C	45 mm	78%	45%	3.6	39°C	Mild to warm and dry
August	25°C	18°C	42 mm	77%	45%	4.3	39°C	Mild to warm, humid or showery
September	25°C	19°C	69 mm	77%	57%	4.6	37°C	Mild to warm, humid or showery
October	26°C	20°C	108 mm	79%	70%	5	34°C	Mild to warm, humid or showery
November	26°C	21°C	220 mm	82%	79%	5	29°C	Wet
December	27°C	22°C	232 mm	84%	75%	5.6	25°C	Wet

The Dubai column is Dubai's mean daily high, for comparison.

Modelled averages for an area about 50 km across, not a weather station's record: NASA POWER climatology, 2001–2020. These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.

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Plan a trip to Rio de Janeiro

Tell us when and who is travelling, and a person puts the flights, the stays and the rest into one quote.

Plan a trip to Rio de Janeiro More about Rio de Janeiro When to go

Month

High

Low

Rain

Humidity

Cloud

Sunlight (kWh/m²/day)

High in Dubai

What it is like

January

28°C

23°C

208 mm

83%

71%

5.8

23°C

Wet

February

28°C

23°C

152 mm

82%

62%

24°C

Wet

March

28°C

23°C

173 mm

83%

66%

5.1

27°C

Wet

April

27°C

22°C

101 mm

82%

56%

4.5

31°C

Mild to warm, humid or showery

May

25°C

20°C

71 mm

80%

56%

3.7

35°C

Mild to warm, humid or showery

June

24°C

19°C

49 mm

80%

49%

3.5

37°C

Mild to warm and dry

July

24°C

18°C

45 mm

78%

45%

3.6

39°C

Mild to warm and dry

August

25°C

18°C

42 mm

77%

45%

4.3

39°C

Mild to warm, humid or showery

September

25°C

19°C

69 mm

77%

57%

4.6

37°C

Mild to warm, humid or showery

October

26°C

20°C

108 mm

79%

70%

34°C

Mild to warm, humid or showery

November

26°C

21°C

220 mm

82%

79%

29°C

Wet

December

27°C

22°C

232 mm

84%

75%

5.6

25°C

Wet