S
M
T
W
T
F
S
28
37°
28°
29
39°
25°
30
28°
19°
31
23°
19°
1
23°
7°
2
26°
18°
3
29°
21°
4
28°
19°
5
22°
3°
6
23°
3°
7
23°
16°
8
25°
16°
9
24°
16°
10
23°
16°
11
27°
20°
12
27°
20°
13
26°
7°
14
25°
3°
15
29°
12°
16
36°
16°
17
39°
16°
18
38°
23°
19
38°
16°
20
37°
14°
21
32°
19°
22
23°
13°
23
20°
10°
24
23°
1°
25
21°
0°
26
25°
12°
27
27°
18°
28
23°
16°
29
21°
9°
30
20°
-2°
31
17°
-2°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Tallinn
Tallinn'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 Tallinn. See also: February | March | April.