S
M
T
W
T
F
S
30
84°
62°
31
83°
59°
1
77°
57°
2
82°
58°
3
82°
61°
4
85°
64°
5
84°
61°
6
88°
62°
7
86°
65°
8
87°
61°
9
85°
65°
10
85°
59°
11
87°
59°
12
90°
65°
13
83°
58°
14
78°
57°
15
79°
56°
16
73°
55°
17
69°
54°
18
75°
51°
19
75°
50°
20
75°
50°
21
73°
49°
22
72°
48°
23
72°
48°
24
75°
49°
25
74°
50°
26
73°
48°
27
69°
49°
28
75°
49°
29
72°
47°
30
72°
47°
1
75°
46°
2
75°
48°
3
74°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Santa Fe
Santa Fe's September 2026 forecast shows daily high temperatures ranging from 69° to 79°, with overnight lows between 46° and 57°. The average high for September is 74° with an average low of 50°. 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 Fe. See also: October | November | December.