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
86°
70°
9
82°
61°
10
82°
58°
11
83°
65°
12
76°
58°
13
72°
64°
14
89°
60°
15
65°
56°
16
64°
58°
17
72°
57°
18
69°
55°
19
69°
49°
20
71°
51°
21
69°
53°
22
68°
49°
23
75°
50°
24
77°
58°
25
80°
57°
26
79°
57°
27
79°
56°
28
76°
57°
29
77°
55°
30
76°
51°
1
67°
51°
2
76°
53°
3
76°
54°
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 64° to 89°, with overnight lows between 49° and 65°. The average high for September is 74° with an average low of 56°. 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.
