S
M
T
W
T
F
S
30
71°
60°
31
69°
56°
1
69°
54°
2
71°
60°
3
72°
66°
4
66°
59°
5
66°
45°
6
75°
57°
7
66°
61°
8
64°
55°
9
64°
46°
10
64°
52°
11
66°
50°
12
64°
61°
13
66°
64°
14
66°
64°
15
66°
55°
16
N/A
17
63°
56°
18
63°
61°
19
65°
56°
20
64°
58°
21
66°
58°
22
66°
59°
23
67°
58°
24
66°
59°
25
65°
57°
26
65°
59°
27
65°
58°
28
66°
59°
29
61°
52°
30
64°
53°
1
63°
52°
2
63°
49°
3
60°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Port Tennant
Port Tennant's September 2026 forecast shows daily high temperatures ranging from 60° to 67°, with overnight lows between 46° and 61°. The average high for September is 64° with an average low of 56°. 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 Port Tennant. See also: October | November | December.
