S
M
T
W
T
F
S
26
57°
32°
27
58°
30°
28
57°
34°
29
59°
35°
30
65°
33°
1
71°
39°
2
82°
50°
3
77°
49°
4
66°
51°
5
59°
44°
6
57°
44°
7
59°
42°
8
62°
37°
9
63°
40°
10
66°
44°
11
53°
40°
12
54°
36°
13
58°
41°
14
56°
38°
15
59°
35°
16
56°
41°
17
64°
39°
18
68°
48°
19
68°
52°
20
63°
48°
21
68°
52°
22
68°
52°
23
76°
56°
24
71°
51°
25
68°
52°
26
72°
54°
27
69°
53°
28
70°
54°
29
69°
52°
30
65°
51°
31
66°
52°
1
58°
48°
2
58°
49°
3
59°
50°
4
59°
50°
5
60°
55°
6
60°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wismar
Wismar's May 2026 forecast shows daily high temperatures ranging from 58° to 76°, with overnight lows between 48° and 56°. The average high for May is 66° with an average low of 52°. 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 Wismar. See also: June | July | August.