S
M
T
W
T
F
S
30
85°
71°
31
85°
72°
1
84°
69°
2
84°
73°
3
85°
74°
4
83°
74°
5
86°
73°
6
86°
72°
7
87°
76°
8
84°
75°
9
81°
63°
10
72°
59°
11
74°
62°
12
78°
63°
13
76°
63°
14
77°
63°
15
76°
64°
16
76°
66°
17
75°
64°
18
73°
63°
19
72°
64°
20
73°
64°
21
75°
65°
22
73°
57°
23
73°
59°
24
72°
60°
25
72°
57°
26
68°
55°
27
68°
54°
28
71°
56°
29
72°
53°
30
66°
52°
1
65°
53°
2
65°
52°
3
64°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in San Lorenzo
San Lorenzo's September 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 52° and 66°. The average high for September is 72° with an average low of 59°. 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 San Lorenzo. See also: October | November | December.
