S
M
T
W
T
F
S
30
95°
65°
31
97°
64°
1
99°
71°
2
99°
73°
3
99°
74°
4
100°
72°
5
100°
72°
6
91°
63°
7
88°
61°
8
95°
68°
9
98°
70°
10
82°
61°
11
81°
64°
12
88°
65°
13
87°
61°
14
83°
59°
15
87°
63°
16
85°
64°
17
86°
63°
18
79°
56°
19
81°
61°
20
83°
61°
21
83°
60°
22
82°
60°
23
82°
59°
24
83°
60°
25
83°
61°
26
82°
61°
27
83°
60°
28
83°
61°
29
82°
60°
30
82°
59°
1
79°
54°
2
68°
48°
3
68°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Pacific
Pacific's September 2026 forecast shows daily high temperatures ranging from 68° to 100°, with overnight lows between 46° and 72°. The average high for September is 84° with an average low of 61°. 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 Pacific. See also: October | November | December.