S
M
T
W
T
F
S
30
81°
64°
31
82°
67°
1
84°
67°
2
82°
60°
3
81°
58°
4
78°
60°
5
79°
60°
6
81°
61°
7
82°
61°
8
84°
67°
9
84°
63°
10
82°
58°
11
79°
64°
12
80°
62°
13
81°
57°
14
78°
56°
15
77°
55°
16
76°
56°
17
77°
61°
18
80°
55°
19
78°
62°
20
79°
60°
21
82°
61°
22
79°
62°
23
81°
62°
24
75°
61°
25
79°
61°
26
81°
60°
27
81°
60°
28
80°
59°
29
81°
59°
30
81°
60°
1
80°
59°
2
80°
50°
3
79°
49°
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 75° to 84°, with overnight lows between 49° and 67°. The average high for September is 80° 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.
