S
M
T
W
T
F
S
30
66°
53°
31
65°
56°
1
67°
59°
2
71°
54°
3
67°
53°
4
73°
57°
5
74°
53°
6
74°
53°
7
67°
52°
8
74°
53°
9
90°
58°
10
90°
57°
11
77°
56°
12
77°
55°
13
79°
54°
14
77°
53°
15
72°
55°
16
74°
52°
17
74°
52°
18
75°
53°
19
76°
54°
20
75°
55°
21
78°
55°
22
80°
52°
23
75°
54°
24
76°
52°
25
72°
53°
26
78°
55°
27
72°
51°
28
74°
49°
29
75°
52°
30
78°
55°
1
79°
56°
2
79°
56°
3
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Santa Cruz
Santa Cruz's September 2026 forecast shows daily high temperatures ranging from 72° to 90°, with overnight lows between 49° and 57°. The average high for September is 77° with an average low of 54°. 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 Santa Cruz. See also: October | November | December.
