S
M
T
W
T
F
S
30
95°
84°
31
97°
81°
1
97°
81°
2
92°
79°
3
85°
75°
4
76°
73°
5
86°
71°
6
83°
76°
7
81°
73°
8
79°
77°
9
81°
67°
10
80°
70°
11
80°
72°
12
86°
73°
13
90°
71°
14
90°
73°
15
81°
70°
16
81°
71°
17
80°
70°
18
82°
67°
19
84°
66°
20
82°
66°
21
83°
67°
22
78°
62°
23
83°
68°
24
82°
67°
25
82°
66°
26
81°
62°
27
78°
64°
28
79°
63°
29
80°
64°
30
76°
65°
1
75°
64°
2
75°
62°
3
77°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Teraguchi
Teraguchi's September 2026 forecast shows daily high temperatures ranging from 75° to 90°, with overnight lows between 60° and 73°. The average high for September is 81° with an average low of 67°. 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 Teraguchi. See also: October | November | December.