S
M
T
W
T
F
S
30
75°
46°
31
76°
50°
1
78°
48°
2
80°
44°
3
77°
43°
4
76°
43°
5
79°
49°
6
80°
48°
7
76°
45°
8
75°
43°
9
74°
43°
10
75°
45°
11
81°
47°
12
81°
47°
13
80°
46°
14
82°
49°
15
82°
49°
16
80°
45°
17
73°
47°
18
80°
42°
19
73°
41°
20
78°
43°
21
78°
46°
22
76°
48°
23
75°
48°
24
75°
46°
25
73°
46°
26
72°
45°
27
73°
46°
28
76°
45°
29
74°
46°
30
75°
44°
1
72°
45°
2
74°
42°
3
67°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Santa Teresa
Santa Teresa's September 2026 forecast shows daily high temperatures ranging from 67° to 82°, with overnight lows between 38° and 50°. The average high for September is 76° with an average low of 45°. 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 Teresa. See also: October | November | December.
