S
M
T
W
T
F
S
30
87°
66°
31
85°
61°
1
84°
58°
2
82°
51°
3
82°
50°
4
82°
55°
5
92°
50°
6
87°
69°
7
99°
71°
8
106°
72°
9
107°
73°
10
95°
69°
11
88°
64°
12
84°
65°
13
85°
61°
14
82°
64°
15
80°
65°
16
80°
64°
17
82°
59°
18
80°
56°
19
81°
57°
20
83°
57°
21
79°
65°
22
82°
63°
23
82°
59°
24
82°
58°
25
86°
62°
26
89°
64°
27
85°
64°
28
81°
56°
29
83°
58°
30
85°
59°
1
85°
61°
2
87°
60°
3
84°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Camp Pendleton MCAS (Munn Field) Airport
Camp Pendleton MCAS (Munn Field) Airport's September 2026 forecast shows daily high temperatures ranging from 81° to 89°, with overnight lows between 56° and 64°. The average high for September is 85° with an average low of 60°. 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 Camp Pendleton MCAS (Munn Field) Airport. See also: October | November | December.
