S
M
T
W
T
F
S
30
74°
53°
31
75°
53°
1
74°
55°
2
75°
57°
3
75°
58°
4
76°
59°
5
76°
58°
6
74°
57°
7
70°
57°
8
73°
55°
9
70°
53°
10
72°
52°
11
70°
53°
12
70°
52°
13
71°
50°
14
69°
51°
15
69°
51°
16
70°
52°
17
72°
51°
18
73°
49°
19
70°
52°
20
71°
54°
21
74°
55°
22
76°
56°
23
71°
56°
24
69°
55°
25
Hist. Avg.
77°
51°
26
Hist. Avg.
77°
51°
27
Hist. Avg.
77°
51°
28
Hist. Avg.
77°
50°
29
Hist. Avg.
77°
50°
30
Hist. Avg.
77°
50°
1
Hist. Avg.
77°
50°
2
Hist. Avg.
77°
50°
3
Hist. Avg.
77°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Guadalupe
Guadalupe's September 2026 forecast shows daily high temperatures ranging from 69° to 76°, with overnight lows between 49° and 59°. The average high for September is 72° 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 Guadalupe. See also: October | November | December.
