Weather in Porto Alegre

Calculated from weather data of Salgado Filho International Airport (SBPA) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	30.9	29.5	32.2	32.5	30.8	31.1
February	30.5	31.5	30.5	31.1	29.8	31.0
March	29.0	30.1	31.1	27.6	28.3	30.6
April	26.2		26.0	24.6	27.1	26.1
May	22.0		23.1	19.8	20.6	22.8
June	20.3		21.3	17.3	18.3	21.3
July	20.2		20.1	21.8	19.3	19.1
August	21.8		23.0	20.8	21.8	22.5
September	22.9		23.0	21.6	22.5	21.8
October	24.7		23.5	24.3	25.1	24.5
November	27.0		26.3	26.6	27.6	27.1
December	29.8		30.1	29.6	28.6	29.3
Average	26.0	30.3	25.8	24.6	24.9	25.6

100th 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	21.5	22	22	22	22	21
February	20.9	23	21	21	21	21
March	20.0	21	22	19	21	20
April	17.2		17	16	17	16
May	13.8		15	13	11	12
June	11.7		13	10	11	13
July	10.6		12	13	9	10
August	11.2		12	11	13	11
September	14.4		16	13	15	14
October	15.8		16	15	16	16
November	17.1		18	17	18	18
December	19.9		21	20	20	20
Average	16.8	21.7	17.0	15.6	15.9	16.0

17th 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	42	80	59	57	76
25 °C or warmer	87	192	153	190	200
20 °C or warmer	91	296	264	280	289
0 °C or colder	0	0	0	0	0

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	3.5	3	2	6	2	3
February	4.0	5	6	3	3	3
March	5.8	6	6	12	7	2
April	4.4		3	8	1	3
May	10.3		13	13	3	4
June	9.2		13	9	11	7
July	8.4		12	11	2	13
August	6.5		5	7	7	4
September	9.5		15	4	5	14
October	7.9		10	10	7	5
November	6.2		14	6	5	2
December	2.8		5	2	4	2
Average	6.1	4.3	8.2	7.5	4.7	4.9

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	15.7	17	15	15	16	16
February	14.4	15	14	14	16	15
March	13.1	12	12	14	13	13
April	12.6		12	12	13	14
May	11.4		10	11	11	12
June	11.2		11	10	14	12
July	11.5		12	11	12	13
August	11.9		12	12	13	10
September	14.4		14	15	15	15
October	14.8		14	15	15	17
November	15.5		15	17	16	16
December	15.9		15	17	18	16
Average	13.9	15.1	13.2	13.7	14.4	14.3

40th 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	SE	SE	SE	SE	SE
February	SE	S	SE	S	SE
March	SE	SE	S	S	SE
April		SE	SE	E	W
May		W	W	W	W
June		W	W	W	N
July		SE	SE	W	W
August		SW	SE	SE	SE
September		SE	SE	SE	SE
October		SE	S	SE	SE
November		SE	E	SE	SE
December		SE	SE	SE	SE

Prevailing wind direction

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

Porto Alegre weather Q&A

What is the warmest month in Porto Alegre?

The warmest month is January with an average temperature of 31 °C over the past years.

What is the coldest month in Porto Alegre?

The coldest month is July with an average daytime temperature of 20 °C in the past few years.

Which month is the wettest in Porto Alegre?

Chance of precipitation is the highest in May with a probability of around 10.3 %.

Which month is the driest in Porto Alegre?

The least rainfall and snow can be expected in December. The probability is about 2.8 %.