S
M
T
W
T
F
S
30
68°
57°
31
73°
55°
1
72°
48°
2
68°
60°
3
75°
64°
4
72°
55°
5
70°
53°
6
75°
54°
7
72°
61°
8
64°
55°
9
66°
50°
10
66°
46°
11
70°
50°
12
68°
44°
13
72°
64°
14
70°
63°
15
70°
57°
16
N/A
17
69°
53°
18
65°
62°
19
69°
57°
20
70°
51°
21
71°
58°
22
70°
58°
23
73°
56°
24
71°
55°
25
69°
55°
26
69°
54°
27
68°
53°
28
65°
54°
29
66°
52°
30
66°
52°
1
67°
51°
2
66°
49°
3
64°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Bournemouth
Bournemouth's September 2026 forecast shows daily high temperatures ranging from 64° to 73°, with overnight lows between 45° and 62°. The average high for September is 68° with an average low of 54°. 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 Bournemouth. See also: October | November | December.
