S
M
T
W
T
F
S
30
89°
66°
31
89°
65°
1
90°
66°
2
89°
68°
3
93°
69°
4
93°
66°
5
91°
63°
6
87°
63°
7
87°
66°
8
92°
66°
9
92°
68°
10
91°
67°
11
86°
64°
12
87°
62°
13
86°
59°
14
85°
57°
15
84°
58°
16
84°
60°
17
85°
59°
18
89°
61°
19
92°
56°
20
92°
55°
21
Hist. Avg.
84°
59°
22
Hist. Avg.
84°
59°
23
Hist. Avg.
84°
59°
24
Hist. Avg.
83°
58°
25
Hist. Avg.
83°
58°
26
Hist. Avg.
83°
58°
27
Hist. Avg.
82°
57°
28
Hist. Avg.
82°
57°
29
Hist. Avg.
82°
56°
30
Hist. Avg.
82°
56°
1
Hist. Avg.
81°
56°
2
Hist. Avg.
81°
56°
3
Hist. Avg.
81°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Clairemont
Clairemont's September 2026 forecast shows daily high temperatures ranging from 84° to 93°, with overnight lows between 55° and 69°. The average high for September is 89° with an average low of 63°. 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 Clairemont. See also: October | November | December.
