Weather in Piauí

Calculated from weather data of Senador Petrônio Portela Airport (SBTE) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	32.8	33.7	31.3	31.8	32.5	33.0
February	32.2	32.6	32.0	32.5	32.2	32.1
March	31.2	27.3	31.1	31.5	31.8	31.8
April	28.7	4.9	32.0	32.2	32.7	32.2
May	32.6		32.7	31.8	32.6	32.7
June	32.8		32.7	31.8	33.5	32.7
July	33.7		34.2	33.1	34.1	33.7
August	35.5		35.7	34.8	35.7	35.2
September	37.1		37.5	36.3	37.2	37.0
October	37.4		38.1	36.7	35.7	38.1
November	35.6		37.2	33.2	33.7	34.2
December	34.6		36.0	33.7	33.7	34.2
Average	32.8	24.6	34.2	33.2	33.8	33.9

3rd highest temperature of Brazil

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	23.8	24	23	24	24	24
February	23.4	24	23	22	23	24
March	22.7	19	24	23	24	24
April	21.0	0	24	24	24	25
May	24.2		25	24	24	25
June	23.6		24	23	23	24
July	23.2		24	24	24	23
August	23.2		24	23	23	23
September	24.2		23	24	25	24
October	24.9		25	25	25	25
November	25.1		26	24	25	25
December	24.8		26	25	25	25
Average	23.1	16.9	24.1	23.6	23.9	24.0

98th lowest temperature of Brazil

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
30 °C or warmer	79	343	326	343	351
25 °C or warmer	90	365	354	365	366
20 °C or warmer	91	365	354	365	366
0 °C or colder	0	0	0	0	0

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	2.2	3	3	4	2	2
February	3.7	5	3	1	3	3
March	3.6	3	4	3	3	6
April	1.7	1	3	1	1	1
May	1.3		1	4	0	1
June	0.3		1	1	0	0
July	0.3		0	1	0	0
August	0.0		0	0	0	0
September	0.3		0	0	1	0
October	0.1		0	0	1	0
November	0.9		0	2	1	2
December	1.5		1	2	4	1
Average	1.5	3.0	1.3	1.6	1.4	1.3

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month	Average	2024	2023	2022	2021	2020
January	7.4	8	6	7	8	7
February	7.1	8	7	7	8	7
March	6.9	7	7	6	7	7
April	7.5	8	8	8	8	8
May	9.0		9	9	10	9
June	10.4		11	10	8	12
July	12.0		11	13	11	13
August	10.8		10	12	12	12
September	9.9		9	9	9	10
October	9.3		9	9	8	10
November	8.7		9	8	8	9
December	8.6		10	8	8	9
Average	8.8	7.8	8.8	8.8	8.6	9.2

91st highest wind speed of Brazil

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	E	SE	E	SE	NE
February	SE	SE	E	E	E
March	E	NE	SE	E	W
April	SE	SE	SE	SE	SE
May		SE	SE	SE	SE
June		SE	SE	SE	SE
July		SE	SE	SE	SE
August		SE	SE	SE	SE
September		SE	SE	SE	SE
October		SE	SE	SE	E
November		E	SE	SE	SE
December		SE	E	SE	SE

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Piauí weather Q&A

What is the warmest month in Piauí?

The warmest month is October with an average temperature of 37 °C over the past years.

What is the coldest month in Piauí?

The coldest month is April with an average daytime temperature of 29 °C in the past few years.

Which month is the wettest in Piauí?

Chance of precipitation is the highest in February with a probability of around 3.7 %.

Which month is the driest in Piauí?

The least rainfall and snow can be expected in August. The probability is about 0.1 %.