S
M
T
W
T
F
S
31
72°
59°
1
77°
61°
2
79°
63°
3
82°
61°
4
82°
63°
5
84°
61°
6
64°
59°
7
64°
59°
8
84°
61°
9
81°
64°
10
79°
57°
11
86°
52°
12
66°
57°
13
66°
57°
14
75°
55°
15
79°
59°
16
73°
61°
17
73°
61°
18
73°
57°
19
86°
63°
20
90°
64°
21
91°
66°
22
72°
63°
23
66°
57°
24
63°
57°
25
61°
55°
26
63°
54°
27
72°
54°
28
82°
55°
29
84°
61°
30
90°
61°
1
79°
63°
2
70°
63°
3
82°
63°
4
73°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sao Paulo
Sao Paulo's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Sao Paulo. See also: October | November | December.
