S
M
T
W
T
F
S
29
42°
39°
30
43°
32°
31
33°
30°
1
39°
26°
2
32°
22°
3
29°
18°
4
31°
14°
5
30°
21°
6
32°
24°
7
39°
29°
8
37°
34°
9
38°
33°
10
36°
31°
11
31°
29°
12
30°
19°
13
37°
19°
14
38°
37°
15
38°
32°
16
40°
35°
17
39°
36°
18
42°
33°
19
36°
33°
20
36°
28°
21
30°
27°
22
37°
27°
23
37°
33°
24
38°
33°
25
40°
36°
26
39°
36°
27
36°
33°
28
38°
33°
29
40°
36°
30
40°
35°
31
38°
33°
1
35°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Helsinki
Helsinki's January 2025 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 Helsinki. See also: February | March | April.
