S
M
T
W
T
F
S
30
87°
77°
31
88°
76°
1
87°
75°
2
90°
77°
3
89°
79°
4
89°
77°
5
88°
76°
6
88°
79°
7
89°
79°
8
90°
79°
9
87°
78°
10
85°
78°
11
83°
69°
12
82°
68°
13
84°
68°
14
83°
69°
15
85°
70°
16
83°
69°
17
84°
68°
18
83°
67°
19
82°
66°
20
82°
68°
21
82°
67°
22
83°
66°
23
84°
68°
24
81°
66°
25
78°
68°
26
78°
68°
27
79°
68°
28
78°
67°
29
78°
68°
30
79°
68°
1
77°
67°
2
78°
68°
3
78°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in South Kohala
South Kohala's September 2026 forecast shows daily high temperatures ranging from 77° to 85°, with overnight lows between 66° and 70°. The average high for September is 81° with an average low of 68°. 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 South Kohala. See also: October | November | December.