S
M
T
W
T
F
S
30
53°
46°
31
54°
46°
1
49°
45°
2
54°
48°
3
56°
46°
4
55°
47°
5
54°
41°
6
56°
40°
7
56°
41°
8
56°
40°
9
55°
41°
10
55°
40°
11
55°
39°
12
54°
40°
13
53°
41°
14
55°
38°
15
52°
40°
16
52°
39°
17
52°
40°
18
52°
41°
19
53°
41°
20
52°
40°
21
52°
40°
22
51°
39°
23
51°
40°
24
52°
40°
25
51°
40°
26
53°
40°
27
52°
41°
28
52°
41°
29
51°
40°
30
52°
41°
1
52°
41°
2
53°
40°
3
52°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Haleakala Crater
Haleakala Crater's September 2026 forecast shows daily high temperatures ranging from 49° to 56°, with overnight lows between 38° and 48°. The average high for September is 53° with an average low of 41°. 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 Haleakala Crater. See also: October | November | December.
