S
M
T
W
T
F
S
30
65°
53°
31
63°
52°
1
63°
52°
2
64°
53°
3
63°
53°
4
62°
50°
5
63°
50°
6
64°
48°
7
62°
53°
8
63°
53°
9
65°
50°
10
64°
53°
11
61°
54°
12
61°
53°
13
63°
50°
14
64°
48°
15
60°
49°
16
60°
53°
17
62°
53°
18
64°
52°
19
61°
53°
20
63°
54°
21
64°
54°
22
63°
53°
23
63°
52°
24
62°
51°
25
61°
52°
26
60°
50°
27
61°
51°
28
62°
50°
29
62°
49°
30
61°
50°
1
Hist. Avg.
58°
48°
2
Hist. Avg.
58°
48°
3
Hist. Avg.
58°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sunderland
Sunderland's September 2026 forecast shows daily high temperatures ranging from 60° to 65°, with overnight lows between 48° and 54°. The average high for September is 62° with an average low of 52°. 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 Sunderland. See also: October | November | December.