S
M
T
W
T
F
S
30
89°
62°
31
90°
60°
1
91°
59°
2
90°
58°
3
88°
56°
4
86°
57°
5
86°
57°
6
87°
58°
7
87°
59°
8
89°
57°
9
87°
56°
10
87°
56°
11
86°
58°
12
86°
61°
13
89°
62°
14
92°
61°
15
92°
61°
16
91°
63°
17
92°
61°
18
92°
62°
19
90°
62°
20
91°
61°
21
90°
58°
22
89°
56°
23
86°
57°
24
87°
58°
25
90°
60°
26
84°
57°
27
86°
53°
28
Hist. Avg.
88°
62°
29
Hist. Avg.
87°
61°
30
Hist. Avg.
87°
61°
1
Hist. Avg.
87°
60°
2
Hist. Avg.
86°
60°
3
Hist. Avg.
86°
60°
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 84° to 92°, with overnight lows between 53° and 63°. The average high for September is 89° with an average low of 59°. 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.
