S
M
T
W
T
F
S
30
55°
41°
31
59°
43°
1
52°
40°
2
53°
43°
3
53°
43°
4
53°
45°
5
54°
43°
6
57°
41°
7
56°
45°
8
62°
43°
9
54°
47°
10
54°
46°
11
46°
40°
12
54°
41°
13
52°
45°
14
60°
43°
15
49°
38°
16
54°
47°
17
50°
44°
18
47°
41°
19
51°
46°
20
53°
47°
21
55°
45°
22
49°
44°
23
49°
44°
24
53°
46°
25
49°
39°
26
47°
41°
27
49°
40°
28
48°
42°
29
51°
43°
30
51°
41°
1
48°
42°
2
45°
39°
3
48°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kopavogur
Kopavogur's September 2026 forecast shows daily high temperatures ranging from 45° to 55°, with overnight lows between 39° and 46°. The average high for September is 49° with an average low of 42°. 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 Kopavogur. See also: October | November | December.
