S
M
T
W
T
F
S
30
63°
52°
31
63°
50°
1
60°
49°
2
60°
51°
3
59°
51°
4
60°
50°
5
59°
51°
6
60°
50°
7
60°
50°
8
62°
50°
9
63°
49°
10
62°
50°
11
62°
50°
12
63°
49°
13
63°
47°
14
62°
48°
15
62°
45°
16
61°
46°
17
62°
47°
18
62°
44°
19
61°
46°
20
60°
47°
21
61°
46°
22
60°
47°
23
60°
45°
24
59°
44°
25
60°
45°
26
59°
45°
27
59°
46°
28
58°
45°
29
57°
42°
30
56°
42°
1
55°
43°
2
54°
43°
3
54°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ullapool
Ullapool's September 2026 forecast shows daily high temperatures ranging from 54° to 63°, with overnight lows between 42° and 52°. The average high for September is 60° with an average low of 47°. 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 Ullapool. See also: October | November | December.
