S
M
T
W
T
F
S
30
75°
59°
31
75°
59°
1
77°
55°
2
77°
54°
3
79°
59°
4
81°
61°
5
82°
66°
6
93°
68°
7
77°
64°
8
75°
61°
9
71°
53°
10
71°
56°
11
74°
56°
12
78°
56°
13
78°
57°
14
81°
59°
15
82°
56°
16
74°
55°
17
76°
57°
18
78°
57°
19
80°
58°
20
79°
57°
21
76°
60°
22
74°
56°
23
75°
56°
24
74°
55°
25
72°
54°
26
71°
52°
27
69°
56°
28
72°
52°
29
71°
48°
30
65°
47°
1
65°
51°
2
66°
53°
3
70°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Port-Saint-Père
Port-Saint-Père's September 2026 forecast shows daily high temperatures ranging from 65° to 82°, with overnight lows between 47° and 60°. The average high for September is 74° with an average low of 55°. 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-Saint-Père. See also: October | November | December.
