S
M
T
W
T
F
S
30
80°
57°
31
80°
51°
1
76°
50°
2
72°
52°
3
72°
51°
4
73°
51°
5
71°
50°
6
71°
49°
7
72°
49°
8
71°
50°
9
71°
54°
10
70°
49°
11
71°
52°
12
74°
52°
13
75°
51°
14
73°
52°
15
69°
48°
16
69°
48°
17
66°
47°
18
68°
50°
19
71°
53°
20
Hist. Avg.
70°
50°
21
Hist. Avg.
70°
50°
22
Hist. Avg.
69°
49°
23
Hist. Avg.
69°
49°
24
Hist. Avg.
68°
49°
25
Hist. Avg.
68°
48°
26
Hist. Avg.
68°
48°
27
Hist. Avg.
67°
47°
28
Hist. Avg.
67°
47°
29
Hist. Avg.
66°
47°
30
Hist. Avg.
66°
46°
1
Hist. Avg.
66°
46°
2
Hist. Avg.
65°
45°
3
Hist. Avg.
65°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in York Harbor
York Harbor's September 2026 forecast shows daily high temperatures ranging from 66° to 80°, with overnight lows between 47° and 57°. The average high for September is 72° 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 York Harbor. See also: October | November | December.
