S
M
T
W
T
F
S
30
85°
60°
31
86°
60°
1
86°
59°
2
87°
56°
3
81°
57°
4
86°
60°
5
79°
59°
6
81°
58°
7
79°
59°
8
79°
54°
9
78°
50°
10
77°
51°
11
78°
58°
12
85°
57°
13
83°
58°
14
77°
57°
15
82°
57°
16
74°
51°
17
75°
57°
18
Hist. Avg.
78°
52°
19
Hist. Avg.
78°
51°
20
Hist. Avg.
77°
51°
21
Hist. Avg.
77°
50°
22
Hist. Avg.
76°
50°
23
Hist. Avg.
76°
50°
24
Hist. Avg.
76°
49°
25
Hist. Avg.
75°
49°
26
Hist. Avg.
75°
49°
27
Hist. Avg.
74°
48°
28
Hist. Avg.
74°
48°
29
Hist. Avg.
74°
47°
30
Hist. Avg.
73°
47°
1
Hist. Avg.
73°
47°
2
Hist. Avg.
72°
46°
3
Hist. Avg.
72°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Oakland
Oakland's September 2026 forecast shows daily high temperatures ranging from 74° to 87°, with overnight lows between 50° and 60°. The average high for September is 81° with an average low of 57°. 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.