S
M
T
W
T
F
S
30
89°
59°
31
89°
59°
1
88°
53°
2
85°
55°
3
86°
52°
4
87°
51°
5
86°
53°
6
90°
58°
7
91°
57°
8
89°
58°
9
90°
54°
10
86°
54°
11
89°
53°
12
90°
56°
13
90°
50°
14
84°
51°
15
87°
54°
16
89°
52°
17
87°
54°
18
88°
49°
19
87°
46°
20
82°
49°
21
87°
53°
22
88°
54°
23
87°
47°
24
82°
44°
25
80°
44°
26
82°
44°
27
Hist. Avg.
78°
54°
28
Hist. Avg.
78°
54°
29
Hist. Avg.
78°
53°
30
Hist. Avg.
77°
53°
1
Hist. Avg.
77°
52°
2
Hist. Avg.
76°
52°
3
Hist. Avg.
76°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Alameda
Alameda's September 2026 forecast shows daily high temperatures ranging from 80° to 91°, with overnight lows between 44° and 59°. The average high for September is 87° with an average low of 52°. 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 Alameda. See also: October | November | December.
