S
M
T
W
T
F
S
30
71°
50°
31
70°
54°
1
70°
54°
2
74°
46°
3
67°
61°
4
72°
56°
5
72°
55°
6
70°
54°
7
75°
57°
8
76°
60°
9
73°
60°
10
73°
59°
11
72°
58°
12
74°
58°
13
72°
55°
14
74°
56°
15
73°
57°
16
75°
54°
17
76°
57°
18
72°
57°
19
75°
58°
20
76°
58°
21
76°
57°
22
75°
58°
23
74°
57°
24
74°
57°
25
76°
56°
26
77°
58°
27
78°
59°
28
76°
58°
29
77°
57°
30
77°
58°
1
76°
57°
2
74°
56°
3
72°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Guadalupe
Guadalupe's September 2026 forecast shows daily high temperatures ranging from 67° to 78°, with overnight lows between 54° and 61°. The average high for September is 74° with an average low of 57°. 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 Guadalupe. See also: October | November | December.
