S
M
T
W
T
F
S
30
83°
69°
31
87°
69°
1
84°
68°
2
89°
68°
3
89°
65°
4
88°
64°
5
81°
68°
6
87°
67°
7
84°
63°
8
81°
61°
9
80°
66°
10
79°
67°
11
86°
66°
12
86°
66°
13
86°
65°
14
86°
65°
15
85°
64°
16
78°
63°
17
80°
56°
18
77°
56°
19
77°
53°
20
75°
53°
21
74°
54°
22
75°
59°
23
75°
58°
24
82°
60°
25
81°
61°
26
80°
60°
27
81°
61°
28
80°
58°
29
79°
57°
30
78°
56°
1
76°
55°
2
78°
57°
3
72°
51°
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 72° to 89°, with overnight lows between 51° and 69°. The average high for September is 81° 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 Oakland. See also: October | November | December.
