S
M
T
W
T
F
S
30
80°
53°
31
80°
52°
1
79°
53°
2
80°
50°
3
78°
49°
4
74°
48°
5
68°
41°
6
68°
49°
7
69°
49°
8
70°
51°
9
75°
51°
10
67°
47°
11
65°
49°
12
66°
49°
13
71°
50°
14
70°
51°
15
74°
43°
16
71°
40°
17
63°
39°
18
66°
46°
19
62°
40°
20
64°
46°
21
Hist. Avg.
62°
37°
22
Hist. Avg.
61°
36°
23
Hist. Avg.
61°
36°
24
Hist. Avg.
60°
36°
25
Hist. Avg.
60°
36°
26
Hist. Avg.
59°
36°
27
Hist. Avg.
59°
36°
28
Hist. Avg.
58°
36°
29
Hist. Avg.
58°
36°
30
Hist. Avg.
57°
35°
1
Hist. Avg.
57°
35°
2
Hist. Avg.
56°
35°
3
Hist. Avg.
56°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Clearwater
Clearwater's September 2026 forecast shows daily high temperatures ranging from 62° to 80°, with overnight lows between 39° and 53°. The average high for September is 71° with an average low of 48°. 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 Clearwater. See also: October | November | December.
