S
M
T
W
T
F
S
28
56°
40°
29
54°
40°
30
50°
37°
31
48°
35°
1
47°
35°
2
45°
40°
3
52°
41°
4
45°
37°
5
38°
34°
6
37°
32°
7
37°
29°
8
45°
29°
9
45°
36°
10
52°
41°
11
44°
35°
12
48°
35°
13
47°
39°
14
47°
44°
15
49°
45°
16
56°
48°
17
60°
45°
18
46°
37°
19
42°
34°
20
46°
28°
21
46°
27°
22
51°
29°
23
48°
34°
24
51°
39°
25
50°
41°
26
52°
36°
27
52°
42°
28
53°
46°
29
53°
45°
30
50°
41°
31
56°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in Trieste
Trieste'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 Trieste. See also: February | March | April.
