, with a rainy season from December to April and a dry season from June to October, with May and November as transitional months.
During the day it can get very hot all year round, but especially from July to October. In September 2017, the temperature reached 42 °C (107.5 °F), and the average high was 39.5 °C (103 °F).
The city is located in the north of Brazil, at 5 degrees south latitude, in the state of Pará, where the Itacaiúnas River flows into the Tocantins.
It is difficult to find the best time in Marabá, since the dry season, from June to October, which in any case will be preferred, is also very hot.
. Here are the average temperatures.
January is generally a very hot, muggy month. The average temperature is of
27.7 °C, with a minimum of
23.3 °C and a maximum of
32.1 °C.

On the coldest nights of the month, the temperature usually drops to around
20.5 °C.

On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
37 °C in January 2018.

Precipitation amounts to
255 mm, distributed over 16 days.
The day lasts on average 12 hours and 25 minutes.

There are on average 5 hours of sunshine per day. So, the sun shines 40% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
6.2 kph.
February, the least warm month of the year, is generally a very hot, muggy month. The average temperature is of
27.6 °C, with a minimum of
23.2 °C and a maximum of
32 °C.

On the coldest nights of the month, the temperature usually drops to around
20.5 °C.

On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
39 °C in February 2012.

Precipitation amounts to
300 mm, distributed over 17 days.
The day lasts on average 12 hours and 20 minutes.

There are on average 4.5 hours of sunshine per day. So, the sun shines 38% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
6.1 kph.
March is generally a very hot, muggy month. The average temperature is of
27.9 °C, with a minimum of
23.5 °C and a maximum of
32.4 °C.

On the coldest nights of the month, the temperature usually drops to around
21.5 °C.

On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
37 °C in March 2010.

Precipitation amounts to
375 mm, distributed over 19 days.
The day lasts on average 12 hours and 5 minutes.

There are on average 4.5 hours of sunshine per day. So, the sun shines 38% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
6.1 kph.
April is generally a very hot, muggy month. The average temperature is of
28.3 °C, with a minimum of
23.7 °C and a maximum of
32.9 °C.

On the coldest nights of the month, the temperature usually drops to around
21.5 °C.

On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
39 °C in April 2018.

Precipitation amounts to
260 mm, distributed over 15 days.
The day lasts on average 12 hours and 0 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
5.7 kph.
May is generally a very hot, muggy month. The average temperature is of
28.5 °C, with a minimum of
23.6 °C and a maximum of
33.4 °C.

On the coldest nights of the month, the temperature usually drops to around
21.5 °C.

On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
39 °C in May 2011.

Precipitation amounts to
120 mm, distributed over 9 days.
The day lasts on average 11 hours and 55 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
5.3 kph.
June is generally a very hot, muggy month. The average temperature is of
28.4 °C, with a minimum of
22.4 °C and a maximum of
34.3 °C.

On the coldest nights of the month, the temperature usually drops to around
20 °C.

On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
40 °C in June 2011.

Precipitation amounts to
30 mm, distributed over 4 days.
The day lasts on average 11 hours and 50 minutes.

There are on average 8.5 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is of
5.8 kph.
July is generally a very hot month. However, there are remarkable differences between night and day. The average temperature is of
28.3 °C, with a minimum of
21.6 °C and a maximum of
35 °C.

On the coldest nights of the month, the temperature usually drops to around
19 °C.

On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
40 °C in July 2016.

Precipitation amounts to
15 mm, and all occurs in one day.
The day lasts on average 11 hours and 50 minutes.

There are on average 9 hours of sunshine per day. So, the sun shines 76% of the time.
The average humidity is 66%.
The average wind speed is of
6.5 kph.
August is generally a very hot month. However, there are remarkable differences between night and day. The average temperature is of
29.1 °C, with a minimum of
22.3 °C and a maximum of
36 °C.

On the coldest nights of the month, the temperature usually drops to around
19.5 °C.

On the warmest days of the month, the temperature usually reaches around
38 °C. However, it reached
41 °C in August 2010.

Precipitation amounts to
11.4 mm, and all occurs in one day.
The day lasts on average 11 hours and 55 minutes.

There are on average 8.5 hours of sunshine per day. So, the sun shines 73% of the time.
The average humidity is 63%.
The average wind speed is of
7.6 kph.
September, the hottest month of the year, is generally a very hot month. The average temperature is of
29.8 °C, with a minimum of
23.8 °C and a maximum of
35.8 °C.

On the coldest nights of the month, the temperature usually drops to around
21.5 °C.

On the warmest days of the month, the temperature usually reaches around
38 °C. However, it reached
42 °C in September 2012.

Precipitation amounts to
45 mm, distributed over 4 days.
The day lasts on average 12 hours and 5 minutes.

There are on average 6.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 67%.
The average wind speed is of
8.2 kph.
October is generally a very hot, muggy month. The average temperature is of
29.4 °C, with a minimum of
24.1 °C and a maximum of
34.6 °C.

On the coldest nights of the month, the temperature usually drops to around
22 °C.

On the warmest days of the month, the temperature usually reaches around
37 °C. However, it reached
41 °C in October 2017.

Precipitation amounts to
95 mm, distributed over 6 days.
The day lasts on average 12 hours and 10 minutes.

There are on average 5 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
7.7 kph.
November is generally a very hot, muggy month. The average temperature is of
28.7 °C, with a minimum of
24 °C and a maximum of
33.4 °C.

On the coldest nights of the month, the temperature usually drops to around
22 °C.

On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
40 °C in November 2017.

Precipitation amounts to
150 mm, distributed over 9 days.
The day lasts on average 12 hours and 25 minutes.

There are on average 4.5 hours of sunshine per day. So, the sun shines 37% of the time.
The average humidity is 77%. Hence, the air is normally humid.
The average wind speed is of
6.6 kph.
December is generally a very hot, muggy month. The average temperature is of
28.2 °C, with a minimum of
23.7 °C and a maximum of
32.6 °C.

On the coldest nights of the month, the temperature usually drops to around
21 °C.

On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
39 °C in December 1999.

Precipitation amounts to
240 mm, distributed over 14 days.
The day lasts on average 12 hours and 25 minutes.

There are on average 4 hours of sunshine per day. So, the sun shines 33% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
6.1 kph.