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
72°
37°
3
73°
38°
4
72°
46°
5
58°
52°
6
58°
49°
7
61°
45°
8
64°
47°
9
64°
49°
10
65°
52°
11
66°
50°
12
65°
50°
13
66°
49°
14
64°
46°
15
59°
47°
16
60°
51°
17
63°
54°
18
62°
53°
19
64°
50°
20
59°
48°
21
61°
49°
22
60°
49°
23
61°
50°
24
61°
51°
25
62°
52°
26
63°
54°
27
63°
54°
28
66°
52°
29
70°
55°
30
69°
56°
31
68°
57°
1
69°
56°
2
68°
55°
3
69°
58°
4
68°
58°
5
65°
57°
6
65°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Postojna
Postojna's May 2026 forecast shows daily high temperatures ranging from 58° to 73°, with overnight lows between 37° and 58°. The average high for May is 65° with an average low of 51°. 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 Postojna. See also: June | July | August.
