S
M
T
W
T
F
S
28
49°
42°
29
53°
40°
30
46°
33°
31
45°
26°
1
48°
32°
2
47°
35°
3
47°
35°
4
46°
33°
5
48°
33°
6
52°
34°
7
50°
35°
8
51°
35°
9
46°
36°
10
50°
43°
11
55°
39°
12
55°
39°
13
55°
43°
14
52°
43°
15
45°
34°
16
41°
27°
17
43°
32°
18
45°
36°
19
41°
32°
20
41°
27°
21
41°
25°
22
39°
21°
23
39°
32°
24
48°
30°
25
48°
36°
26
50°
34°
27
54°
36°
28
54°
37°
29
54°
44°
30
52°
37°
31
57°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Tehran
Tehran'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 Tehran. See also: February | March | April.
