S
M
T
W
T
F
S
30
88°
70°
31
87°
70°
1
88°
72°
2
89°
74°
3
89°
72°
4
87°
68°
5
86°
68°
6
87°
72°
7
85°
74°
8
86°
77°
9
87°
72°
10
86°
69°
11
85°
73°
12
85°
71°
13
83°
71°
14
85°
66°
15
86°
67°
16
88°
72°
17
89°
72°
18
89°
75°
19
88°
73°
20
89°
72°
21
88°
71°
22
87°
72°
23
88°
70°
24
87°
72°
25
88°
72°
26
87°
69°
27
87°
71°
28
88°
70°
29
87°
69°
30
86°
70°
1
88°
70°
2
87°
69°
3
84°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Waimea
Waimea's September 2026 forecast shows daily high temperatures ranging from 84° to 89°, with overnight lows between 69° and 73°. The average high for September is 87° with an average low of 71°. 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 Waimea. See also: October | November | December.
