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Climate in Rio De Janeiro (Brazil)


Average weather, temperature, rainfall, sunshine hours

Flag - Brazil

Rio de Janeiro, where it's located


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Climate chart - Rio De Janeiro
In Rio de Janeiro, a big city of Brazil and the capital of the state of the same name, the climate is tropical, with a relatively cool season from May to October and a hot, muggy and rainy season from December to March, with November and April as intermediate months.
The city is located in southern Brazil, just north of the Tropic of Capricorn, and is the capital of the state of the same name. Rio de Janeiro lies on the coast: the famous beaches of Copacabana and Ipanema are located along the coast of the Atlantic Ocean, while the city overlooks the Guanabara Bay, where there is also the Rio de Janeiro-Galeao airport, named after Antônio Carlos Jobim.
Around the city, there are hills covered with forests, reaching about a thousand meters (3,300 feet) of altitude. Mount Corcovado, or Monte Cristo, on top of which is the famous statue of Christ the Redeemer, is 710 meters (2,329 feet) high, which means that on the summit, the temperature is about 4 degrees Celsius (7 °F) lower than at sea level. The Sugarloaf Mountain, accessible by cable car with a stunning view, is instead at the entrance of the bay, and it's 396 meters (1,300 feet) high.

Although the average temperatures are not very high, and thankfully the breeze usually blows, relieving the heat, during the warm season, very hot days can sometimes occur, with highs around 35/37 °C (95/99 °F), from October to April. However, summery days can occur even in winter, with highs around 30/32 °C (86/90 °F) also in June, July and August.
On the other hand, during the cool season, from May to October, cold air masses of Antarctic origin can bring cool temperatures, or even a little cold at night, in fact, lows can drop to around 10/12 °C (50/54 °F), and highs can stay around 18/20 °C (64/68 °F). This happens in the city proper, in the districts lying along the coast, but in the localities of the metropolitan region situated to the north-west and far from the sea, like Nova Iguaçu, lows can even drop below 10 °C (50 °F).

Cable car to Sugarloaf Mountain

Rainfall is more abundant in summer, from December to March (remember that the city is located in the Southern Hemisphere), when the rains mainly occur in the form of showers or thunderstorms. Sometimes the rains can be particularly intense and cause floods.
Winter is quite dry, but at times, some disturbances can affect this area, bringing some days of bad weather, and also cool temperatures. This happens mostly in mid-winter (in the months of June, July and August), but it can also occur in the months of May, September and October (which, all in all, are not so different).

The amount of sunshine in Rio is good, but not great. In summer, the sky is often clear or partly cloudy, but some cloud banks can form, more or less intense, associated, as mentioned, with showers and thunderstorms. In winter, the relatively dry season, as I said, there can be some cloudiness linked to depressions

The sea is warm enough for swimming from November to May, when the water temperature is equal to or higher than 24 °C (75 °F), or even in June, when it drops to 23 °C (73 °F). From July to October, it is a bit cool, but not impossible after all, since it remains around 22 °C (72 °F).

Best Time


The best time to visit Rio de Janeiro is winter, from May to October: temperatures are generally pleasant, with quite rare rains. It will be possible to spend a relaxing time on the beaches, to sunbathe, and to try to swim in a sea a little cool. A sweatshirt and a light jacket can help for the evening and on cool and cloudy days.
In summer, the weather is hot and muggy, sometimes very hot, and thunderstorms can break out, but there is also a lot of sunshine. As there is no danger of cyclones, if you want, you can go in this season as well, at least if you do not suffer from the heat, and you have in mind long periods on the beach. It may be useful to book a hotel with air conditioning, and bring a sweatshirt or a pashmina for airconditioned places.

The following meteorological data were recorded along the coast, in the Saúde district.

Rio De Janeiro - Climate data


In Rio De Janeiro, the average temperature of the coldest month (July) is of 22.3 °C, that of the warmest month (February) is of 27.8 °C. Here are the average temperatures.
Rio De Janeiro - Average temperatures (1991-2020)
Temperatures (°C)
MonthMinMaxMean
January24.330.627.5
February24.431.227.8
March23.929.926.9
April22.828.625.7
May20.726.423.5
June19.825.922.8
July19.225.422.3
August19.425.722.5
September2026.323.1
October21.227.124.2
November21.827.924.8
December23.329.726.5
Year21.727.924.75

Precipitation amounts to 1070 millimeters per year: it is therefore quite abundant. It ranges from 40 millimeters in the driest month (July) to 135 millimeters in the wettest ones (January, March, December) Here is the average precipitation.
Rio De Janeiro - Average precipitation
MonthRain (mm)Days
January13511
February1307
March1358
April959
May706
June456
July404
August455
September557
October859
November10010
December13511
Year107093

The sea temperature ranges from 22 °C in August, September to 26.5 °C in March. Here are the average sea temperatures.
Rio De Janeiro - Sea temperature
MonthTemperatures (°C)
January25.5
February26
March26.5
April26
May24.5
June23
July22.5
August22
September22
October22.5
November23.5">
December25
Year24

There are on average around 2180 sunshine hours per year. Here are the average hours of sunshine per day.
Rio De Janeiro - Sunshine hours
MonthAverageTotal
January7210
February7200
March6.5205
April6180
May6185
June6175
July6190
August6185
September5145
October5150
November5.5170
December6180
Year62180

Rio De Janeiro - Weather by month

Based on the period 1991-2020
(January - February - March - April - May - June - July - August - September - October - November - December)


January is generally a warm to hot, muggy month. The average temperature is of 27.5 °C, with a minimum of 24.3 °C and a maximum of 30.6 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 21 °C. However, it dropped to 16 °C in January 1994.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 36 °C. However, it reached 38 °C in January 1994.
Rain iconPrecipitation amounts to 135 mm, distributed over 11 days.
The day lasts on average 13 hours and 25 minutes.
Sun iconThere are on average 7 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of 11.3 kph.
Sea iconThe average sea temperature is of 25.7 °C. Therefore, the sea is warm enough for swimming.


February, the hottest month of the year, is generally a very hot, muggy month. The average temperature is of 27.8 °C, with a minimum of 24.4 °C and a maximum of 31.2 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 22 °C. However, it dropped to 19.6 °C in February 1997.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 36 °C. However, it reached 39 °C in February 2015.
Rain iconPrecipitation amounts to 130 mm, distributed over 7 days.
The day lasts on average 12 hours and 50 minutes.
Sun iconThere are on average 7 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of 11.4 kph.
Sea iconThe average sea temperature is of 26.1 °C. Therefore, the sea is warm enough for swimming.


March is generally a warm to hot, muggy month. The average temperature is of 26.9 °C, with a minimum of 23.9 °C and a maximum of 29.9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 21.5 °C. However, it dropped to 19 °C in March 1992.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 35 °C. However, it reached 39 °C in March 2017.
Rain iconPrecipitation amounts to 135 mm, distributed over 8 days.
The day lasts on average 12 hours and 10 minutes.
Sun iconThere are on average 6.5 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of 10.8 kph.
Sea iconThe average sea temperature is of 26.3 °C. Therefore, the sea is pleasantly warm and allows long swims.


April is generally a warm to hot, muggy month. The average temperature is of 25.7 °C, with a minimum of 22.8 °C and a maximum of 28.6 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 20 °C. However, it dropped to 18 °C in April 2014.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 34 °C. However, it reached 37 °C in April 1998.
Rain iconPrecipitation amounts to 95 mm, distributed over 9 days.
The day lasts on average 11 hours and 30 minutes.
Sun iconThere are on average 6 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of 10.1 kph.
Sea iconThe average sea temperature is of 25.8 °C. Therefore, the sea is warm enough for swimming.


May is generally a warm to hot, muggy month. The average temperature is of 23.5 °C, with a minimum of 20.7 °C and a maximum of 26.4 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 18 °C. However, it dropped to 15 °C in May 2007.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 32 °C. However, it reached 35 °C in May 2017.
Rain iconPrecipitation amounts to 70 mm, distributed over 6 days.
The day lasts on average 11 hours and 0 minutes.
Sun iconThere are on average 6 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of 9.7 kph.
Sea iconThe average sea temperature is of 24.3 °C. Therefore, the sea is warm enough for swimming.


June is generally a warm to hot, muggy month. The average temperature is of 22.8 °C, with a minimum of 19.8 °C and a maximum of 25.9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 17 °C. However, it dropped to 13 °C in June 1994.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 31 °C. However, it reached 35 °C in June 2014.
Rain iconPrecipitation amounts to 45 mm, distributed over 6 days.
The day lasts on average 10 hours and 40 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
Sun iconThere are on average 6 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of 9.6 kph.
Sea iconThe average sea temperature is of 23 °C. Therefore, the sea can be considered barely acceptable for swimming.


July, the coolest month of the year, is generally a warm month. The average temperature is of 22.3 °C, with a minimum of 19.2 °C and a maximum of 25.4 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 15.5 °C. However, it dropped to 13.1 °C in July 2007.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 31.5 °C. However, it reached 35 °C in July 2001.
Rain iconPrecipitation amounts to 40 mm, distributed over 4 days.
The day lasts on average 10 hours and 55 minutes.
Sun iconThere are on average 6 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of 10 kph.
Sea iconThe average sea temperature is of 22.3 °C. Therefore, the sea can be considered barely acceptable for swimming.


August is generally a warm month. The average temperature is of 22.5 °C, with a minimum of 19.4 °C and a maximum of 25.7 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 16.5 °C. However, it dropped to 12.8 °C in August 2009.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 32 °C. However, it reached 36 °C in August 1993.
Rain iconPrecipitation amounts to 45 mm, distributed over 5 days.
The day lasts on average 11 hours and 25 minutes.
Sun iconThere are on average 6 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of 10.7 kph.
Sea iconThe average sea temperature is of 21.9 °C. Therefore, the sea is cool for swimming.


September is generally a warm to hot, muggy month. The average temperature is of 23.1 °C, with a minimum of 20 °C and a maximum of 26.3 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 17 °C. However, it dropped to 14 °C in September 2006.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 33.5 °C. However, it reached 38 °C in September 1993.
Rain iconPrecipitation amounts to 55 mm, distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of 11.8 kph.
Sea iconThe average sea temperature is of 21.9 °C. Therefore, the sea is cool for swimming.


October is generally a warm to hot, muggy month. The average temperature is of 24.2 °C, with a minimum of 21.2 °C and a maximum of 27.1 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 17.5 °C. However, it dropped to 16.3 °C in October 2004.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 34 °C. However, it reached 38 °C in October 1997.
Rain iconPrecipitation amounts to 85 mm, distributed over 9 days.
The day lasts on average 12 hours and 40 minutes.
Sun iconThere are on average 5 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of 12.4 kph.
Sea iconThe average sea temperature is of 22.5 °C. Therefore, the sea can be considered barely acceptable for swimming.


November is generally a warm to hot, muggy month. The average temperature is of 24.8 °C, with a minimum of 21.8 °C and a maximum of 27.9 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 18.5 °C. However, it dropped to 16 °C in November 2006.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 34.5 °C. However, it reached 41 °C in November 2013.
Rain iconPrecipitation amounts to 100 mm, distributed over 10 days.
The day lasts on average 13 hours and 10 minutes.
Sun iconThere are on average 5.5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of 12.1 kph.
Sea iconThe average sea temperature is of 23.6 °C. Therefore, the sea can be considered barely acceptable for swimming.


December is generally a warm to hot, muggy month. The average temperature is of 26.5 °C, with a minimum of 23.3 °C and a maximum of 29.7 °C.
Cold thermometer iconOn the coldest nights of the month, the temperature usually drops to around 20 °C. However, it dropped to 18 °C in December 2018.
Warm thermometer iconOn the warmest days of the month, the temperature usually reaches around 36 °C. However, it reached 40 °C in December 2015.
Rain iconPrecipitation amounts to 135 mm, distributed over 11 days.
The day lasts on average 13 hours and 30 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
Sun iconThere are on average 6 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of 12 kph.
Sea iconThe average sea temperature is of 24.8 °C. Therefore, the sea is warm enough for swimming.

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