S
M
T
W
T
F
S
30
82°
49°
31
80°
45°
1
74°
44°
2
72°
46°
3
73°
44°
4
72°
45°
5
72°
44°
6
73°
43°
7
72°
43°
8
76°
47°
9
73°
48°
10
70°
44°
11
70°
46°
12
73°
44°
13
74°
48°
14
76°
47°
15
69°
42°
16
69°
42°
17
67°
41°
18
68°
45°
19
67°
40°
20
67°
48°
21
Hist. Avg.
68°
46°
22
Hist. Avg.
67°
46°
23
Hist. Avg.
67°
45°
24
Hist. Avg.
66°
45°
25
Hist. Avg.
66°
45°
26
Hist. Avg.
65°
44°
27
Hist. Avg.
65°
44°
28
Hist. Avg.
64°
43°
29
Hist. Avg.
64°
43°
30
Hist. Avg.
64°
43°
1
Hist. Avg.
63°
42°
2
Hist. Avg.
63°
42°
3
Hist. Avg.
62°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Bath
Bath's September 2026 forecast shows daily high temperatures ranging from 67° to 82°, with overnight lows between 40° and 49°. The average high for September is 72° with an average low of 45°. 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 Bath. See also: October | November | December.