S
M
T
W
T
F
S
31
72°
58°
1
72°
58°
2
73°
59°
3
72°
58°
4
73°
59°
5
76°
62°
6
74°
65°
7
73°
64°
8
76°
62°
9
74°
60°
10
75°
59°
11
74°
57°
12
74°
58°
13
75°
59°
14
77°
60°
15
80°
60°
16
80°
64°
17
78°
64°
18
77°
63°
19
75°
65°
20
75°
66°
21
80°
65°
22
77°
67°
23
77°
62°
24
76°
63°
25
77°
67°
26
81°
63°
27
77°
62°
28
78°
65°
29
83°
67°
30
83°
65°
1
77°
64°
2
82°
64°
3
83°
63°
4
82°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Trieste
Trieste's June 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 57° and 68°. The average high for June is 77° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Trieste. See also: July | August | September.
