S
M
T
W
T
F
S
30
63°
59°
31
59°
52°
1
54°
50°
2
54°
50°
3
52°
46°
4
46°
41°
5
46°
39°
6
46°
39°
7
54°
39°
8
N/A
9
51°
47°
10
53°
47°
11
57°
47°
12
57°
50°
13
56°
44°
14
51°
43°
15
50°
44°
16
51°
41°
17
48°
41°
18
50°
44°
19
48°
42°
20
50°
43°
21
45°
35°
22
45°
35°
23
44°
36°
24
44°
37°
25
46°
38°
26
47°
36°
27
43°
35°
28
45°
39°
29
49°
40°
30
48°
40°
1
49°
39°
2
47°
36°
3
48°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Hammerfest
Hammerfest's September 2026 forecast shows daily high temperatures ranging from 43° to 57°, with overnight lows between 35° and 50°. The average high for September is 49° with an average low of 41°. 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 Hammerfest. See also: October | November | December.
