S
M
T
W
T
F
S
30
85°
69°
31
82°
67°
1
82°
66°
2
81°
66°
3
78°
66°
4
80°
64°
5
92°
60°
6
93°
63°
7
93°
59°
8
91°
59°
9
88°
61°
10
85°
60°
11
80°
57°
12
75°
58°
13
76°
59°
14
75°
56°
15
72°
55°
16
72°
59°
17
73°
58°
18
77°
63°
19
76°
62°
20
75°
61°
21
74°
61°
22
74°
60°
23
73°
58°
24
73°
58°
25
72°
60°
26
73°
60°
27
73°
59°
28
72°
56°
29
71°
56°
30
71°
58°
1
70°
59°
2
71°
57°
3
71°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in San Rufo
San Rufo's September 2026 forecast shows daily high temperatures ranging from 70° to 93°, with overnight lows between 55° and 63°. The average high for September is 77° 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 Rufo. See also: October | November | December.
