S
M
T
W
T
F
S
28
42°
31°
29
44°
32°
30
37°
27°
31
43°
37°
1
42°
36°
2
39°
30°
3
31°
23°
4
30°
18°
5
32°
29°
6
33°
29°
7
33°
28°
8
31°
28°
9
34°
30°
10
33°
24°
11
29°
17°
12
33°
25°
13
42°
36°
14
44°
36°
15
46°
32°
16
48°
39°
17
40°
36°
18
39°
32°
19
36°
25°
20
32°
24°
21
34°
30°
22
35°
32°
23
33°
29°
24
33°
31°
25
34°
31°
26
34°
30°
27
34°
32°
28
35°
31°
29
33°
29°
30
33°
29°
31
31°
26°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Flensburg
Flensburg's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in Flensburg. See also: February | March | April.
