S
M
T
W
T
F
S
26
72°
53°
27
77°
59°
28
76°
60°
29
66°
54°
30
65°
48°
1
71°
47°
2
69°
51°
3
68°
54°
4
71°
55°
5
65°
58°
6
67°
59°
7
68°
58°
8
71°
56°
9
71°
57°
10
70°
58°
11
69°
57°
12
65°
50°
13
65°
49°
14
67°
50°
15
61°
51°
16
64°
52°
17
67°
52°
18
70°
53°
19
71°
55°
20
63°
58°
21
76°
63°
22
78°
64°
23
79°
67°
24
82°
65°
25
83°
70°
26
85°
69°
27
85°
70°
28
90°
73°
29
83°
70°
30
80°
67°
31
81°
68°
1
78°
66°
2
77°
65°
3
70°
62°
4
75°
60°
5
78°
65°
6
78°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Trieste
Trieste's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May 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 May weather will actually feel in Trieste. See also: June | July | August.
