Weather and climate in Altamira (Pará)

Altamira's climate is tropical, with a rainy season from December to May and a dry season from July to October. The hottest time of the year is from August to November, before the rains lower the temperature a bit.
The city is located in the north of Brazil, in the state of Pará, on the banks of the Xingu River, a tributary of the Amazon River. We are inside the Amazon rainforest.

Best Time

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The best time to visit Altamira is from July to October, being the driest and sunniest of the year. It must be said that this is the hottest time of the year, although the humidity is slightly lower.

Altamira - Climate data

The average temperature of the coldest month (February) is of 26.7 °C (80.1 °F), that of the warmest month (September) is of 28.8 °C (83.8 °F). Here are the average temperatures.
Precipitation amounts to 2195 millimeters (86.4 inches) per year: it is therefore abundant. It ranges from 25 mm (1 in) in the driest month (August) to 415 mm (16.3 in) in the wettest one (March). Here is the average precipitation.
There are on average around 1980 sunshine hours per year. Here are the average hours of sunshine per day.

Altamira - Weather by month

Based on the period 1991-2020

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January is generally a warm to hot, muggy month. The average temperature is of 27.0 °C (81 °F), with a minimum of 22.1 °C (71.8 °F) and a maximum of 32 °C (89.5 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (68.5 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94.5 °F). However, it reached 35.7 °C (96.3 °F) in January 2016.
Precipitation amounts to 290 mm (11.4 in), distributed over 19 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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February, the least warm month of the year, is generally a warm to hot, muggy month. The average temperature is of 26.7 °C (80 °F), with a minimum of 22 °C (71.6 °F) and a maximum of 31.5 °C (88.7 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (70 °F).
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92.5 °F). However, it reached 34.4 °C (93.9 °F) in February 2010.
Precipitation amounts to 320 mm (12.6 in), distributed over 21 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 32% of the time.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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March is generally a warm to hot, muggy month. The average temperature is of 27.2 °C (81 °F), with a minimum of 22.6 °C (72.7 °F) and a maximum of 31.8 °C (89.2 °F).
On the coldest nights, the temperature usually drops to around 21.5 °C (70.5 °F).
On the warmest days, the temperature usually reaches around 34 °C (93.5 °F). However, it reached 36.2 °C (97.2 °F) in March 2010.
Precipitation amounts to 415 mm (16.3 in), distributed over 24 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 31% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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April is generally a warm to hot, muggy month. The average temperature is of 27.3 °C (81 °F), with a minimum of 22.7 °C (72.8 °F) and a maximum of 31.9 °C (89.4 °F).
On the coldest nights, the temperature usually drops to around 21 °C (69.5 °F).
On the warmest days, the temperature usually reaches around 33.5 °C (92.5 °F). However, it reached 35 °C (95 °F) in April 2010.
Precipitation amounts to 365 mm (14.4 in), distributed over 22 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 37% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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May is generally a warm to hot, muggy month. The average temperature is of 27.5 °C (82 °F), with a minimum of 22.8 °C (73 °F) and a maximum of 32.3 °C (90.1 °F).
On the coldest nights, the temperature usually drops to around 21 °C (70 °F).
On the warmest days, the temperature usually reaches around 34 °C (93.5 °F). However, it reached 38 °C (100.4 °F) in May 2019.
Precipitation amounts to 230 mm (9.1 in), distributed over 18 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 44% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is 4 kph (3 mph).

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June is generally a warm to hot, muggy month. The average temperature is of 27.5 °C (82 °F), with a minimum of 22.1 °C (71.8 °F) and a maximum of 32.9 °C (91.3 °F).
On the coldest nights, the temperature usually drops to around 21.5 °C (70.5 °F).
On the warmest days, the temperature usually reaches around 34.5 °C (94.5 °F). However, it reached 36.2 °C (97.2 °F) in June 2010.
Precipitation amounts to 120 mm (4.7 in), distributed over 11 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 58% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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July is generally a warm to hot, muggy month. The average temperature is of 27.5 °C (81 °F), with a minimum of 21.6 °C (70.9 °F) and a maximum of 33.4 °C (92 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (69 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95.5 °F). However, it reached 38.2 °C (100.8 °F) in July 2006.
Precipitation amounts to 65 mm (2.6 in), distributed over 7 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 64% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 5 kph (3 mph).

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August is generally a very hot, muggy month. However, there are remarkable differences between night and day. The average temperature is of 28.1 °C (83 °F), with a minimum of 21.5 °C (70.7 °F) and a maximum of 34.8 °C (94.6 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (71 °F).
On the warmest days of the month, the temperature usually reaches around 36.5 °C (97.5 °F). However, it reached 37.5 °C (99.5 °F) in August 2020.
Precipitation amounts to 25 mm (1 in), distributed over 4 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 6 kph (4 mph).

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September, the hottest month of the year, is generally a very hot, muggy month. The average temperature is of 28.8 °C (84 °F), with a minimum of 22.4 °C (72.4 °F) and a maximum of 35.2 °C (95.3 °F).
On the coldest nights, the temperature usually drops to around 22 °C (72 °F).
On the warmest days, the temperature usually reaches around 37 °C (98.5 °F). However, it reached 38.6 °C (101.5 °F) in September 2009.
Precipitation amounts to 45 mm (1.8 in), distributed over 5 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 55% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 6 kph (4 mph).

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October is generally a very hot, muggy month. The average temperature is of 28.7 °C (84 °F), with a minimum of 22.6 °C (72.6 °F) and a maximum of 34.8 °C (94.7 °F).
On the coldest nights, the temperature usually drops to around 22.5 °C (72 °F).
On the warmest days, the temperature usually reaches around 37 °C (98.5 °F). However, it reached 39.2 °C (102.6 °F) in October 2009.
Precipitation amounts to 55 mm (2.2 in), distributed over 6 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 48% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 6 kph (4 mph).

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November is generally a very hot, muggy month. The average temperature is of 28.8 °C (84 °F), with a minimum of 23 °C (73.4 °F) and a maximum of 34.5 °C (94.1 °F).
On the coldest nights, the temperature usually drops to around 22.5 °C (72.5 °F).
On the warmest days, the temperature usually reaches around 36.5 °C (98 °F). However, it reached 37.8 °C (100 °F) in November 2009.
Precipitation amounts to 95 mm (3.7 in), distributed over 6 days.
The day lasts on average 12 hours and 20 minutes.
There 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 6 kph (4 mph).

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December is generally a very hot, muggy month. The average temperature is of 27.9 °C (82 °F), with a minimum of 22.7 °C (72.9 °F) and a maximum of 33 °C (91.5 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (71.5 °F).
On the warmest days of the month, the temperature usually reaches around 35.5 °C (95.5 °F). However, it reached 37 °C (98.6 °F) in December 2017.
Precipitation amounts to 170 mm (6.7 in), distributed over 12 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 33% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 6 kph (4 mph).