Weather and climate in Campos Dos Goytacazes (Rio de Janeiro)

The climate of Campos dos Goytacazes is tropical, with a relatively cool and dry season from June to August, and a hot and rainy season from November to March.
The city is located in southeastern Brazil, in the state of Rio de Janeiro, at 21 degrees south latitude. The Atlantic Ocean coast, where São João da Barra is located, is 30 kilometers (18 miles) away.
Sometimes in winter, from June to August, there can be slightly cool days, with highs of 22/23 °C (72/73 °F). At night the temperature can drop to 11/12 °C (52/54 °F). In July 1975 it dropped to 9 °C (48 °F).
In the hot season, from November to March, the sea breeze tempers the heat, however, there can be very hot periods.
From mid-August to October, in spring, the temperature rises and there can be very hot periods, however, sometimes cool, winter-like weather can return. The rains become more frequent, although they are not yet as frequent as in the summer.

Best Time

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The best time to visit Campos dos Goytacazes is from May to August, being the coolest and driest of the year. The sea is warm enough for swimming, although it is cooler than in the other months, moreover, sometimes there can be cool days. For a beach holiday you can then choose the period from February to April, even though it is hot and muggy and thunderstorms can break out.

Campos Dos Goytacazes - Climate data

The average temperature of the coldest month (July) is of 22.6 °C (72.6 °F), that of the warmest month (February) is of 28.5 °C (83.3 °F). Here are the average temperatures.
Precipitation amounts to 1010 millimeters (39.8 inches) per year: it is therefore quite abundant. It ranges from 25 mm (1 in) in the driest month (August) to 170 mm (6.7 in) in the wettest one (December). Here is the average precipitation.
The sea temperature ranges from 23 °C (73 °F) in August, September to 27 °C (81 °F) in March. Here are the average sea temperatures.
There are on average around 2080 sunshine hours per year. Here are the average hours of sunshine per day.

Campos Dos Goytacazes - Weather by month

Based on the period 1991-2020

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January is generally a very hot, muggy month. The average temperature is of 28.0 °C (82 °F), with a minimum of 23.6 °C (74.6 °F) and a maximum of 32.3 °C (90.1 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (70 °F). However, it dropped to 18.1 °C (64.6 °F) in January 1991.
On the warmest days of the month, the temperature usually reaches around 36.5 °C (97.5 °F). However, it reached 39 °C (102.2 °F) in January 2016.
Precipitation amounts to 135 mm (5.3 in), distributed over 9 days.
The day lasts on average 13 hours and 20 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 26 °C (78.5 °F). Therefore, the sea is warm enough for swimming.

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February, the hottest month of the year, is generally a very hot month. The average temperature is of 28.5 °C (83 °F), with a minimum of 24.1 °C (75.3 °F) and a maximum of 32.9 °C (91.2 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (71 °F). However, it dropped to 19.1 °C (66.4 °F) in February 2005.
On the warmest days of the month, the temperature usually reaches around 36.5 °C (98 °F). However, it reached 40 °C (104 °F) in February 2010.
Precipitation amounts to 60 mm (2.4 in), distributed over 7 days.
The day lasts on average 12 hours and 50 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 70%.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 26.5 °C (79.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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March is generally a very hot, muggy month. The average temperature is of 27.7 °C (82 °F), with a minimum of 23.7 °C (74.6 °F) and a maximum of 31.8 °C (89.2 °F).
On the coldest nights, the temperature usually drops to around 21 °C (69.5 °F). However, it dropped to 19 °C (66.2 °F) in March 2020.
On the warmest days, the temperature usually reaches around 36.5 °C (98 °F). However, it reached 39 °C (102.2 °F) in March 2017.
Precipitation amounts to 105 mm (4.1 in), distributed over 9 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).
The average sea temperature is of 27 °C (80 °F). Therefore, the sea is pleasantly warm and allows long swims.

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April is generally a warm to hot, muggy month. The average temperature is of 26.3 °C (79 °F), with a minimum of 22.2 °C (71.9 °F) and a maximum of 30.4 °C (86.6 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 19 °C (66.5 °F). However, it dropped to 17.4 °C (63.3 °F) in April 2004.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 34.5 °C (94.5 °F). However, it reached 37.3 °C (99.1 °F) in April 2016.
Precipitation amounts to 85 mm (3.3 in), distributed over 7 days.
The day lasts on average 11 hours and 35 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 10 kph (7 mph).
The average sea temperature is of 26.5 °C (79.5 °F). Therefore, the sea is pleasantly warm and allows long swims.

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May is generally a warm to hot, muggy month. The average temperature is of 24.1 °C (75 °F), with a minimum of 19.8 °C (67.6 °F) and a maximum of 28.4 °C (83.2 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 16 °C (61 °F). However, it dropped to 14.4 °C (57.9 °F) in May 2020.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 33 °C (91 °F). However, it reached 34 °C (93.2 °F) in May 2009.
Precipitation amounts to 45 mm (1.8 in), distributed over 6 days.
The day lasts on average 11 hours and 5 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 10 kph (6 mph).
The average sea temperature is of 25 °C (77.5 °F). Therefore, the sea is warm enough for swimming.

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June is generally a warm to hot, muggy month. The average temperature is of 23.1 °C (74 °F), with a minimum of 18.4 °C (65 °F) and a maximum of 27.8 °C (82 °F).
On the coldest nights, the temperature usually drops to around 15 °C (59 °F). However, it dropped to 11.2 °C (52.2 °F) in June 1994.
On the warmest days, the temperature usually reaches around 32.5 °C (90 °F). However, it reached 35 °C (95 °F) in June 2012.
Precipitation amounts to 30 mm (1.2 in), distributed over 4 days.
The day lasts on average 10 hours and 50 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
There are on average 6 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 24 °C (75.5 °F). Therefore, the sea is warm enough for swimming.

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July, the coolest month of the year, is generally a warm to hot, muggy month. The average temperature is of 22.6 °C (73 °F), with a minimum of 17.7 °C (63.9 °F) and a maximum of 27.4 °C (81.4 °F).
On the coldest nights of the month, the temperature usually drops to around 14.5 °C (57.5 °F). However, it dropped to 11 °C (51.8 °F) in July 2000.
On the warmest days of the month, the temperature usually reaches around 32 °C (90 °F). However, it reached 35.7 °C (96.3 °F) in July 2016.
Precipitation amounts to 30 mm (1.2 in), distributed over 5 days.
The day lasts on average 11 hours and 0 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 23.5 °C (74 °F). Therefore, the sea can be considered barely acceptable for swimming.

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August is generally a warm to hot, muggy month. The average temperature is of 22.8 °C (73 °F), with a minimum of 18.2 °C (64.8 °F) and a maximum of 27.4 °C (81.2 °F).
On the coldest nights of the month, the temperature usually drops to around 14.5 °C (58 °F). However, it dropped to 12.6 °C (54.7 °F) in August 2004.
On the warmest days of the month, the temperature usually reaches around 32.5 °C (90.5 °F). However, it reached 35 °C (95 °F) in August 2011.
Precipitation amounts to 25 mm (1 in), distributed over 3 days.
The day lasts on average 11 hours and 25 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 15 kph (10 mph).
The average sea temperature is of 23 °C (73 °F). Therefore, the sea can be considered barely acceptable for swimming.

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September is generally a warm to hot, muggy month. The average temperature is of 24.1 °C (75 °F), with a minimum of 19.9 °C (67.9 °F) and a maximum of 28.3 °C (82.9 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 15.5 °C (60 °F). However, it dropped to 11.8 °C (53.2 °F) in September 2019.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 35 °C (94.5 °F). However, it reached 39 °C (102.2 °F) in September 2007.
Precipitation amounts to 70 mm (2.8 in), distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 36% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 23 °C (73 °F). Therefore, the sea can be considered barely acceptable for swimming.

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October is generally a warm to hot, muggy month. The average temperature is of 25.3 °C (77 °F), with a minimum of 21.4 °C (70.6 °F) and a maximum of 29.1 °C (84.3 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 17 °C (62.5 °F). However, it dropped to 14.6 °C (58.3 °F) in October 2003.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 36 °C (96.5 °F). However, it reached 40 °C (104 °F) in October 2012.
Precipitation amounts to 100 mm (3.9 in), distributed over 8 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 23.5 °C (74 °F). Therefore, the sea can be considered barely acceptable for swimming.

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November is generally a warm to hot, muggy month. The average temperature is of 25.7 °C (78 °F), with a minimum of 22.1 °C (71.7 °F) and a maximum of 29.4 °C (84.8 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 18 °C (64 °F). However, it dropped to 15.6 °C (60.1 °F) in November 2003.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 35.5 °C (96 °F). However, it reached 38.6 °C (101.5 °F) in November 2015.
Precipitation amounts to 165 mm (6.5 in), distributed over 11 days.
The day lasts on average 13 hours and 10 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 24 °C (75.5 °F). Therefore, the sea is warm enough for swimming.

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December is generally a warm to hot, muggy month. The average temperature is of 27.2 °C (81 °F), with a minimum of 23.2 °C (73.8 °F) and a maximum of 31.1 °C (88.1 °F).
On the coldest nights of the month, the temperature usually drops to around 19.5 °C (67.5 °F). However, it dropped to 16.2 °C (61.2 °F) in December 2018.
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F). However, it reached 39 °C (102.2 °F) in December 2014.
Precipitation amounts to 170 mm (6.7 in), distributed over 12 days.
The day lasts on average 13 hours and 25 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
There are on average 5 hours of sunshine per day. So, the sun shines 38% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 25 °C (77.5 °F). Therefore, the sea is warm enough for swimming.