S
M
T
W
T
F
S
30
88°
76°
31
86°
76°
1
89°
76°
2
94°
76°
3
96°
76°
4
91°
76°
5
93°
76°
6
91°
77°
7
N/A
8
88°
76°
9
86°
75°
10
91°
75°
11
92°
76°
12
92°
73°
13
92°
75°
14
89°
79°
15
90°
76°
16
92°
76°
17
90°
76°
18
89°
76°
19
88°
75°
20
89°
76°
21
89°
77°
22
88°
77°
23
86°
76°
24
86°
76°
25
87°
77°
26
85°
76°
27
86°
76°
28
86°
77°
29
87°
76°
30
86°
75°
1
86°
75°
2
87°
76°
3
87°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Ku Kaeo
Ku Kaeo's September 2026 forecast shows daily high temperatures ranging from 85° to 92°, with overnight lows between 73° and 79°. The average high for September is 88° with an average low of 76°. 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 Ku Kaeo. See also: October | November | December.
