S
M
T
W
T
F
S
30
88°
70°
31
86°
66°
1
93°
70°
2
95°
66°
3
93°
73°
4
91°
70°
5
90°
70°
6
88°
68°
7
84°
70°
8
N/A
9
85°
56°
10
84°
61°
11
88°
66°
12
79°
63°
13
75°
70°
14
84°
56°
15
67°
54°
16
72°
53°
17
71°
51°
18
69°
51°
19
72°
50°
20
72°
51°
21
75°
50°
22
80°
57°
23
79°
58°
24
77°
58°
25
75°
57°
26
74°
57°
27
78°
56°
28
76°
57°
29
73°
56°
30
75°
53°
1
68°
46°
2
64°
43°
3
63°
40°
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 63° to 88°, with overnight lows between 40° and 70°. The average high for September is 75° with an average low of 55°. 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.
