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Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Porto Alegre, RS
Content continues below
September
Average Temperature
High
22°
Feels 22
Low
12°
Feels 11
Average Precipitation
12 Days
Rain amount
124.8mm
Snow amount
0cm
Content continues below
Daily Historical Averages
September 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
17°
14
17°
15
18°
16
16°
17
22°
18
25°
19
23°
20
25°
21
25°
22
21°
23
19°
24
21°
25
22°
26
23°
27
23°
28
29
30
Forecast
Sunday, September 13, 2026
Day
17°
Feels 16
Wind
22 km/h S
Gust
33 km/h
Humidity
63%
P.O.P
40%
Rain
~1 mm
Night
11°
Feels 10
Wind
19 km/h SE
Gust
28 km/h
Humidity
90%
P.O.P
20%
Historical Averages
Sep 13
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.