Climate - Imperatriz (Brazil)

The climate of Imperatriz is tropical, 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 40 °C (104 °F), and the average high was 38.1 °C (100.6 °F).
The city is located in northeastern Brazil, in the state of Maranhão, on the banks of the Tocantins River.

The average temperature of the coldest month (January) is of 27.7 °C (81.9 °F), that of the warmest month (October) is of 29.6 °C (85.2 °F). Here are the average temperatures.
Precipitation amounts to 1515 millimeters (59.6 inches) per year: it is therefore abundant. It ranges from 6 mm (0.2 in) in the driest month (July) to 295 mm (11.6 in) in the wettest one (March). Here is the average precipitation.
The sea temperature ranges from 27 °C (27 °F) in August, September, October, November to 28.5 °C (28.5 °F) in March, April, May. Here are the average sea temperatures.
On average, there are around 2275 sunshine hours per year. Here are the average sunshine hours per day.

Imperatriz - Weather by month

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

In January, the coldest month of the year, the average temperature is of 27.7 °C (82 °F), with a minimum of 23.4 °C (74 °F) and a maximum of 32.1 °C (89.8 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (70.5 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95 °F).
Precipitation amounts to 255 mm (10 in), distributed over 15 days.
On average, there are 150 hours of sunshine per month, i.e. 5 hours per day.
The average humidity is 79%.
The average wind speed is 6 kph (4 kph).

In February, the average temperature is of 27.9 °C (82 °F), with a minimum of 23.4 °C (74.2 °F) and a maximum of 32.4 °C (90.3 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (70.5 °F).
On the warmest days of the month, the temperature usually reaches around 35 °C (95 °F).
Precipitation amounts to 220 mm (8.7 in), distributed over 15 days.
On average, there are 130 hours of sunshine per month, i.e. 4.5 hours per day.
The average humidity is 79%.
The average wind speed is 7 kph (4 kph).

In March, the average temperature is of 28.0 °C (82 °F), with a minimum of 23.6 °C (74.5 °F) and a maximum of 32.4 °C (90.4 °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 °C (94.5 °F).
Precipitation amounts to 295 mm (11.6 in), distributed over 17 days.
On average, there are 145 hours of sunshine per month, i.e. 4.5 hours per day.
The average humidity is 79%.
The average wind speed is 7 kph (4 kph).

In April, the average temperature is of 28.2 °C (83 °F), with a minimum of 23.7 °C (74.7 °F) and a maximum of 32.6 °C (90.7 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (72 °F).
On the warmest days of the month, the temperature usually reaches around 34.5 °C (94.5 °F).
Precipitation amounts to 205 mm (8.1 in), distributed over 14 days.
On average, there are 170 hours of sunshine per month, i.e. 5.5 hours per day.
The average humidity is 79%.
The average wind speed is 6 kph (4 kph).

In May, the average temperature is of 28.4 °C (83 °F), with a minimum of 23.4 °C (74.2 °F) and a maximum of 33.3 °C (91.9 °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 35.5 °C (95.5 °F).
Precipitation amounts to 90 mm (3.5 in), distributed over 7 days.
On average, there are 220 hours of sunshine per month, i.e. 7 hours per day.
The average humidity is 75%.
The average wind speed is 6 kph (4 kph).

In June, the average temperature is of 27.9 °C (82 °F), with a minimum of 22.1 °C (71.7 °F) and a maximum of 33.8 °C (92.8 °F).
On the coldest nights of the month, the temperature usually drops to around 19.5 °C (67 °F).
On the warmest days of the month, the temperature usually reaches around 35.5 °C (96 °F).
Precipitation amounts to 15 mm (0.6 in), distributed over 2 days.
On average, there are 260 hours of sunshine per month, i.e. 8.5 hours per day.
The average humidity is 67%.
The average wind speed is 7 kph (5 kph).

In July, the average temperature is of 27.8 °C (82 °F), with a minimum of 21 °C (69.7 °F) and a maximum of 34.6 °C (94.3 °F).
On the coldest nights of the month, the temperature usually drops to around 18 °C (65 °F).
On the warmest days of the month, the temperature usually reaches around 36.5 °C (97.5 °F).
Precipitation amounts to only 6 mm (0.2 in), and all occurs in one day.
On average, there are 280 hours of sunshine per month, i.e. 9 hours per day.
The average humidity is 60%.
The average wind speed is 8 kph (5 kph).

In August, the average temperature is of 28.5 °C (83 °F), with a minimum of 21 °C (69.8 °F) and a maximum of 35.9 °C (96.6 °F).
On the coldest nights of the month, the temperature usually drops to around 18 °C (64.5 °F).
On the warmest days of the month, the temperature usually reaches around 38 °C (100 °F).
Precipitation amounts to only 9 mm (0.4 in), and all occurs in one day.
On average, there are 265 hours of sunshine per month, i.e. 8.5 hours per day.
The average humidity is 56%.
The average wind speed is 9 kph (5 kph).

In September, the average temperature is of 29.5 °C (85 °F), with a minimum of 22.8 °C (73.1 °F) and a maximum of 36.2 °C (97.1 °F).
On the coldest nights of the month, the temperature usually drops to around 20 °C (67.5 °F).
On the warmest days of the month, the temperature usually reaches around 38 °C (100.5 °F).
Precipitation amounts to 40 mm (1.6 in), distributed over 3 days.
On average, there are 200 hours of sunshine per month, i.e. 6.5 hours per day.
The average humidity is 57%.
The average wind speed is 9 kph (6 kph).

In October, the warmest month of the year, the average temperature is of 29.6 °C (85 °F), with a minimum of 23.9 °C (75.1 °F) and a maximum of 35.2 °C (95.4 °F).
On the coldest nights of the month, the temperature usually drops to around 21.5 °C (70.5 °F).
On the warmest days of the month, the temperature usually reaches around 38 °C (100.5 °F).
Precipitation amounts to 70 mm (2.8 in), distributed over 6 days.
On average, there are 160 hours of sunshine per month, i.e. 5 hours per day.
The average humidity is 63%.
The average wind speed is 9 kph (5 kph).

In November, the average temperature is of 29.1 °C (84 °F), with a minimum of 24.2 °C (75.6 °F) and a maximum of 33.9 °C (93.1 °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 36.5 °C (98 °F).
Precipitation amounts to 120 mm (4.7 in), distributed over 9 days.
On average, there are 145 hours of sunshine per month, i.e. 5 hours per day.
The average humidity is 70%.
The average wind speed is 8 kph (5 kph).

In December, the average temperature is of 28.4 °C (83 °F), with a minimum of 23.8 °C (74.8 °F) and a maximum of 33.1 °C (91.5 °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 °C (97 °F).
Precipitation amounts to 190 mm (7.5 in), distributed over 13 days.
On average, there are 145 hours of sunshine per month, i.e. 4.5 hours per day.
The average humidity is 75%.
The average wind speed is 7 kph (4 kph).