S
M
T
W
T
F
S
30
89°
66°
31
84°
66°
1
82°
64°
2
83°
66°
3
88°
67°
4
88°
67°
5
84°
66°
6
86°
66°
7
87°
65°
8
82°
61°
9
83°
59°
10
81°
60°
11
81°
60°
12
86°
57°
13
85°
64°
14
85°
59°
15
80°
56°
16
78°
58°
17
79°
57°
18
82°
60°
19
84°
58°
20
84°
60°
21
83°
62°
22
84°
59°
23
83°
55°
24
80°
54°
25
80°
53°
26
78°
59°
27
82°
59°
28
81°
60°
29
82°
59°
30
82°
53°
1
78°
58°
2
80°
59°
3
82°
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 78° to 89°, with overnight lows between 53° and 67°. The average high for September is 83° with an average low of 60°. 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.
