S
M
T
W
T
F
S
28
32°
23°
29
27°
22°
30
22°
18°
31
18°
10°
1
14°
5°
2
25°
6°
3
24°
14°
4
25°
13°
5
26°
13°
6
14°
9°
7
15°
11°
8
22°
11°
9
21°
14°
10
18°
11°
11
22°
12°
12
30°
18°
13
27°
20°
14
26°
20°
15
31°
20°
16
30°
19°
17
36°
19°
18
38°
31°
19
37°
27°
20
28°
20°
21
22°
18°
22
19°
15°
23
17°
15°
24
29°
14°
25
31°
23°
26
25°
21°
27
24°
14°
28
20°
13°
29
21°
17°
30
22°
13°
31
20°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Tromso
Tromso'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 Tromso. See also: February | March | April.