S
M
T
W
T
F
S
30
79°
63°
31
77°
64°
1
81°
68°
2
85°
67°
3
83°
66°
4
80°
67°
5
75°
59°
6
77°
55°
7
76°
58°
8
77°
58°
9
79°
62°
10
80°
56°
11
75°
55°
12
74°
56°
13
75°
57°
14
74°
56°
15
75°
51°
16
70°
56°
17
70°
52°
18
69°
51°
19
74°
50°
20
76°
54°
21
75°
54°
22
75°
55°
23
74°
52°
24
71°
49°
25
72°
53°
26
74°
54°
27
72°
50°
28
65°
45°
29
63°
42°
30
65°
44°
1
63°
47°
2
66°
48°
3
64°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Oakland
Oakland's September 2026 forecast shows daily high temperatures ranging from 63° to 85°, with overnight lows between 42° and 67°. The average high for September is 73° with an average low of 54°. 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 Oakland. See also: October | November | December.
