S
M
T
W
T
F
S
30
65°
54°
31
66°
56°
1
67°
56°
2
67°
55°
3
68°
56°
4
64°
55°
5
65°
55°
6
67°
54°
7
68°
55°
8
67°
52°
9
60°
49°
10
61°
52°
11
61°
49°
12
60°
49°
13
60°
46°
14
61°
47°
15
60°
49°
16
60°
48°
17
61°
49°
18
61°
53°
19
64°
53°
20
65°
47°
21
59°
47°
22
59°
50°
23
60°
52°
24
61°
53°
25
65°
52°
26
66°
53°
27
67°
54°
28
68°
53°
29
67°
51°
30
66°
52°
1
62°
51°
2
66°
46°
3
59°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Samoa
Samoa's September 2026 forecast shows daily high temperatures ranging from 59° to 68°, with overnight lows between 45° and 56°. The average high for September is 64° with an average low of 51°. 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 Samoa. See also: October | November | December.