S
M
T
W
T
F
S
30
80°
60°
31
74°
65°
1
73°
65°
2
73°
64°
3
80°
69°
4
83°
66°
5
81°
58°
6
73°
58°
7
73°
59°
8
72°
60°
9
77°
64°
10
74°
60°
11
71°
55°
12
70°
54°
13
71°
58°
14
70°
55°
15
69°
53°
16
69°
52°
17
67°
52°
18
67°
53°
19
68°
52°
20
67°
52°
21
68°
53°
22
68°
54°
23
70°
58°
24
71°
59°
25
74°
60°
26
74°
51°
27
73°
51°
28
65°
58°
29
65°
55°
30
72°
55°
1
70°
56°
2
67°
53°
3
64°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Buena Park
Buena Park's September 2026 forecast shows daily high temperatures ranging from 64° to 83°, with overnight lows between 51° and 69°. The average high for September is 72° with an average low of 57°. 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 Buena Park. See also: October | November | December.
