S
M
T
W
T
F
S
30
71°
48°
31
79°
48°
1
67°
51°
2
70°
52°
3
68°
54°
4
70°
50°
5
72°
48°
6
75°
48°
7
72°
54°
8
77°
46°
9
81°
48°
10
73°
54°
11
70°
50°
12
68°
48°
13
59°
54°
14
64°
55°
15
66°
50°
16
75°
46°
17
77°
46°
18
72°
50°
19
70°
48°
20
72°
49°
21
69°
55°
22
70°
50°
23
68°
49°
24
64°
49°
25
63°
46°
26
66°
46°
27
69°
50°
28
67°
51°
29
68°
50°
30
67°
49°
1
67°
50°
2
66°
49°
3
63°
45°
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 63° to 72°, with overnight lows between 45° and 55°. The average high for September is 67° with an average low of 49°. 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.