S
M
T
W
T
F
S
30
92°
70°
31
91°
67°
1
91°
66°
2
86°
66°
3
87°
68°
4
90°
69°
5
90°
69°
6
89°
70°
7
90°
69°
8
89°
68°
9
90°
68°
10
84°
69°
11
89°
68°
12
89°
64°
13
84°
66°
14
83°
67°
15
85°
67°
16
87°
66°
17
86°
62°
18
85°
60°
19
83°
61°
20
82°
65°
21
82°
60°
22
83°
60°
23
86°
61°
24
85°
63°
25
86°
64°
26
85°
63°
27
86°
60°
28
82°
62°
29
83°
57°
30
83°
57°
1
Hist. Avg.
79°
58°
2
Hist. Avg.
79°
57°
3
Hist. Avg.
78°
57°
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 82° to 92°, with overnight lows between 57° and 70°. The average high for September is 86° with an average low of 65°. 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.
